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CHAPTER- II
Review of Literature Review of Literature
Chapter – II Review of Literature
10
Chapter – II Review of Literature
2.1. Introduction
Forest resources are the best asset a Nation could ever retain. A country's health is
determined by the natural wealth it possesses (Khoshoo, 1996). Forests--the home of the
Plant kingdom works as a storehouse to supply all the Basic Life Supporting System
(Bliss) to the mankind and other organisms. Besides the tangible and intangible benefit
flow, the Plant kingdom also extends subtle blessings and wisdom to the aspirants through
their spirit of unending services in silence as monks. Thus forests as a composition of
enumerable plants operate as the Sea of monks being panacea to the human beings and
other organisms.
Population explosion causing explosion in material demand has led to
indiscriminate clearing and destruction of these intrinsic forest resources over the years.
Over exploitations and imbalances in management practices in past and tremendous biotic
pressure is pushing the rate of deforestation towards desertification every day. The only
option to end this alarming situation is to sustain the available resources.
The development in science has led to certain policies, methodologies and
techniques for better conservation and sustainability. Studies starting from simple species
richness and inventory to a tremendously improved monitoring using the latest technology
i.e., Remote Sensing, Geographical Information System (GIS), Global Positioning System
(GPS) and finally Geoinformatics in totality has found utility in various fields starting
from Geology, Climate, Soil etc to Biodiversity assessment and their interrelationships in
planning and decision making. Modelling for sustainable and strategic management of
forest resources is another aspect, simplifying and providing better understanding of the
forest status in desired angles for better management. The most important application is
conservation and management of priority sites i.e., Biodiversity Hotspots with special
attention to the medicinal plants for this studies. This review spans with all important
related issues as follows:
2.2. Natural Forests
Natural forests are one of the most magnificent terrestrial ecosystems of the world.
Over time, due to the population explosion and its increased demand, the dependence on
Chapter – II Review of Literature
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forests has crossed the carrying capacity of the forests. This has resulted in large-scale
global deforestation and forest degradation (Kushwaha et al., 2000). Deforestation has
many ecological, social and economic consequences, one of which is the loss of biological
diversity (Jha et al., 2000) and has affected a number of species worldwide (Ciesla, 1989).
Biodiversity is a very precious natural resource because it contains the gene pool, which is
the product of evolution of four billion years, and it is the basis for the very existence of
life on earth. Any loss in this gene pool is irreversible and detrimental to mankind.
Most of the pristine vegetation forms are located in the hilly terrains. Because of
its altitudinal range it has a wide range of edapho-climatic conditions, creating conducive
atmosphere for more plant species to grow well in this region, than the surrounding plains.
Hill areas are frequently affected by extensive soil erosion, land slides, deforestation,
overgrazing and drought caused due to wanton destruction of hill slopes for development
(Dobhal, 1987; NRSA, 1998).
Forest type and density are the two important elements in both management and
sustainable utilization (Martin et al., 1998) of forest resources. Maps are the most
effective and convenient forms of storing the spatial data base of natural resources like
forests. Conventional mapping procedures are time consuming and accuracy of
information is also questionable in many cases (Tiwari et al., 1996). The application of
recent technology such as Remote sensing, GIS and GPS are widely employed to
overcome difficulties in vegetation mapping.
2.2.1. Remote sensing in forest resource management
The science of remote sensing is based on interaction of earth surface features with
electromagnetic radiation from the Sun. Earth surface features have three types of
interactions with light viz., absorption, reflection and transmission. The behavior of
interaction by different objects assists us in identification of various features. Land use
and vegetation assessment is one of the most important parameters, which can be done
very efficiently using remote sensing (Tiwari et al., 1996) Remote sensing system can
provide information about the location, availability and changing conditions of natural
resources, in specific areas, information that is essential for establishing appropriate
priorities and effective planning for land management (Adrien and Baumgarduer, 1977).
Chapter – II Review of Literature
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2.2.2. Digital classification
Mapping of vegetation through satellite images can be done using visual
interpretation of images (Beaubren, 1986) or through computer aided digital classification
such as supervised, unsupervised (Jensen, 1986) and hybrid classification (Hoffer, 1986;
Behera et al., 2000) or by onscreen visual interpretation (Kushwaha et al., 2000;
Jayakumar et al., 2002a). A number of image enhancement procedures are now available
(Saha and Kudrat, 1992) which enhance the contrast between various land surface features
and thus mapping is more accurate and meaningful. The aerial photographs were being
used for such studies for more than three decades in India for assessing vegetation cover
(Tiwari and Singh, 1987).
Digital classification of satellite data provides a better identification of various
colour tones when compared to human eyes (Tiwari et al., 1996). Computer can handle
larger number of spectral bands for classification in comparison to a maximum of three (in
the form of false colour composite) in visual interpretation.
In a supervised classification, the identity and location of certain representative
patches of the land cover types present in a landscape need to be identified prior to
classification. Initial field input is normally required for adequate map accuracy (Lark,
1995).This can prove a limitation in relatively inaccessible tropical areas
(Rey-Benayas and Pope, 1995). Jha et al., (1993) have demonstrated the effect of various
enhancements in vegetation type’s reparability.
The utilization of supervised and unsupervised techniques for training set selection
is called hybrid classification. Behara et al., (2000) attempted to classify the forest region
using supervised, unsupervised and hybrid techniques and they concluded that hybrid
approach has been found to be effective especially in hilly and mountainous areas.
However, post classification editing is needed in the shaded areas. Head on screen image
interpretation is also found to be suitable for classification. This method facilitated the
interpreter in many ways (Kushwaha et al., 2000; and Jayakumar et al., 2002b). It is
obvious that there are number of techniques available for classification and utilization of
any such technique is generally based on the extent of area of study, time, money and
expertise availability.
Chapter – II Review of Literature
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2.2.3. Forest Types classification in India
Application of satellite remote sensing for forestry and environmental studies in
India was initiated during the late 1970’s and early 1980’s. The initial studies using
Landsat MSS data were mainly based on visual interpretation of false colour composite
(FCC) and were restricted to broad level classification mainly depicting closeness of
canopy (Unni et al., 1983; Tiwari, 1983). The first countrywide forest cover mapping
using Landsat MSS imagery pertaining to 1972 – 1975 and 1980 -1982 was carried out by
NRSA (1983) adopting visual interpretation techniques on 1: 1 million scale false color
composites. The study highlighted rampant deforestation and forest degradation in
absolute terms and created tremendous awareness on use of remote sensing for forest
cover assessment. This exercise also demonstrated that small-scale national forest cover
estimates could be conveniently made within short period thus saving cost and time.
Forest Survey of India (FSI), Dehra Dun was formed in 1981 under the Ministry of
Environment and Forests. FSI has adopted the techniques and the technology used by
NRSA and taken over the task of assessing the country’s forest cover at definite intervals
of time. This organization also makes inventory of growing stock using remote sensing
and ground data conjunctively. Beginning in 1981, FSI has made seven such assessments.
Presently, they map the forests in India once in two years on 1: 2,50,000 and 1: 50,000
scale using Indian Remote Sensing Satellite (IRS) data available from NRSA, Hyderabad.
According to the latest report of FSI (2005) the forest cover status of India is 6, 77,100
km2 which is 20.60 percent of the total geographical area.
The initial remote sensing studies on forest related aspects were based on aerial
photographs, mostly black and white. The aerial photo-interpretation technique was the
most popular tool for vegetation mapping till early 1980s.
Unni et al., (1985) evaluated the use of Landsat digital data for mapping forest
features in a part of Godavari basin, India. Porwal and Roy (1992) used Landsat
TM false color composite to classify the highly heterogeneous forest environment of
Western Ghats, Kerala using visual interpretation technique. Nagendra and Gadgil (1999)
employed supervised and unsupervised classification techniques on IRS 1B LISS II digital
data in west coast moist forest eco-region of Western Ghats of India.
Behera et al., (2000) attempted to stratify and map the Taxus baccata bearing
forest in Talle Valley of North Eastern Himalayas using IRS 1C LISS III digital data by
Chapter – II Review of Literature
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digital classification techniques on 1: 50,000 scale. Jha et al., (2000) mapped the present
status of forest cover and the changes it has undergone between 1973 and 1995 in the
south part of Western Ghats forest region using IRS 1B LISS 1 and Landsat MSS digital
data. They classified the forest region by supervised classification technique on 1:
2,50,000 scale. Ramachandran et al., (2005) have done a case study on Kolli hills, Eastern
Ghats of Tamil Nadu where, they have insisted on the need for reclassification of Indian
forest types rather than following the same old classification of Champion and Seth
(1968).
2.2.4. Accuracy assessment
Evaluation of mapping accuracy is considered yet another important task in
deciding the reliability of the maps. Various statistical methods are being used for
evaluating quantitative and qualitative accuracy of maps produced in different regions
(Hord and Brooner, 1976; Aronoff, 1982; Congalton et al., 1983; Hopkins et al., 1988).
2.2.5. GIS in forest management
A significant development in the resource management has been the development
of Geographic Information System (GIS) technology during the 1980’s facilitating the
storage, retrieval and integration of spatial and non-spatial data on natural resources and
environment and eventually helping the decision makers and planners, in arriving at
appropriate action plan for sustainable development of an area.
While remote sensing provides a variety of information on land features, GIS plays
a significant role in the integration of information to prepare site-specific solution for
present day problems effectively. The use of remote sensing and GIS for natural
resources study and decision-making has been well established.
GIS based modeling and decision-making in forestry, wildlife, recreation and
conflicts in the Tangier watershed in the North Columbia Mountains in British Columbia,
Canada has been discussed by Schreier et al., (1996). Skidmore et al., (1997) discussed
the use of remote sensing and GIS for sustainable land management. Baskent (1997) has
applied GIS for forest landscape management in New Brunswick, Canada.
2.2.6. Global Positioning System (GPS)
Global Positioning Systems (GPS) provide powerful tools for acquiring accurate
locations and areas. The relatively recent development of GPS and GIS technologies
Chapter – II Review of Literature
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appear ideally suited to conservation effort because they empower ecologists to
expeditiously acquire, store, analyze, and display spatial data on organisms and their
environment (Johnston 1990).
2.3. Biodiversity Study
Forests are the cradles of Biodiversity and are one of the most important renewable
natural resources. Awareness to protect it along with other natural resources has gained
momentum only in early 1970s.
2.3.1. Definition
Biodiversity was construed to account for the genetic diversity, their abundances,
distribution patterns and evenness with a specific study and this too was debatable.
McNeely et al., (1990) considered biodiversity to be an ‘umbrella term for the degree of
nature’s variety including both number and frequency of ecosystems, species or genes in a
given assemblages’. The definition was again debatable, so a global agreement on a clear
definition was formulated during the Rio de Janeiro conference in 1992 which defined it
by stating that ‘the variability among living organisms from all sources including, inter
alia, terrestrial, marine and other aquatic ecosystems and the ecological complexes of
which they are apart; this includes diversity within species, between species and of
ecosystems’ (UN, 1992b).
The term biodiversity is restricted to its most commonly used form, i.e., species
diversity (Stoms and Estes, 1993). As rates of habitat and species destruction continue to
rise, the need for conserving biodiversity has become increasingly imperative during the
last decade (Wilson, 1988; Kondratyev, 1998). For effective planning and sustainable
utilization of forest resources, measurable indicators of its composition, structure and
functioning must be identified (Noss, 1990). Conservation strategies, which are prepared,
based on the data on vegetation such as species composition, distribution pattern and
diversity status of any forest region along with remote sensing data and GIS would be
very much reliable and operational. Therefore floristic ground survey must be carried out
in any forest region in order to get the above said information.
2.3.2. Biodiversity status
There are important references on probability of species richness ranging from 5
million (Stork, 1993) to 360 million (Andre et al., 1994) species. The bias is tremendous
but we have at hand knowledge of about 1.7 million species (Barthlott el al., 1996 ) again
Chapter – II Review of Literature
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with a projected estimate of 20 million i.e., we have knowledge of about 8.5% of all
species exist on earth. The statistics is oriented on the animal population with the insects
accounting for the most of it. On the other hand there is no adequate knowledge about the
vascular plants and till date about 3,00,000 species is documented with a probability of
existence of around 4,00,000 species (Heywood, 1995).
Even after 250 years of cataloguing of flowering plants we don't have accurate
estimates. The fact is we are still ignorant of the total flora on earth, however recent
estimates by Bramwell (2002) place the total plant species to 4,21,968 flowering species.
India accounts for 6.67 % of the total global plant species (Hajra and Mudgal, 1997).
India exhibits a vast diversity of forest communities due to its varied climatic and
topographic conditions and yet the forest resources cover only 19.27 % of the total area
(Khoshoo, 1991). The National Forest Policy (1988) has suggested 33 % of the nation’s
area to be under forest cover. The situation at hand demands wise use of these resources
that is to be managed in such a way that they meet the socioeconomic and forest produce
needs to the present and future generation and at the same time conserve the available
forest stand.
Of the twelve biosphere realms in this world, Indian subcontinent falls in only two
realms with twelve biogeographical provinces i.e., palaearctic (Himalayan and Tibetan)
and Indo-Malayan (Malabar, Bengalian, Indus-Ganges, Assam-Burman, Mahanadian,
Coromandel, Deccan thorn forest, Thar desert, Laccadive islands and Andaman and
Nicobar islands) realms (Khoshoo, 1991).
NRSA has been estimating the forest status periodically from 1972. It is found that
the forest status was 16.83 % (55.2 million ha) in 1972-75 and decreased to 13.94 % (45.7
% million ha) in 1980-82 i.e., loss of 2.89 % (NRSA, 1983). Recent estimates in 1990
place the total forest area to 51.7 million ha and it may be due to increase in number of
protected areas from 224 in 1980 to 521 in 1997. Nevertheless the deforestation rate was
0.6 % (Agarwal et al., 1999). According to the latest report of FSI (2009) the forest cover
status of India is 69.09 million ha which is 21.02 percent of the total geographical area.
In Tamil Nadu the trend was similar with 12.83 % (1.68 million ha) in 1972-75
(NRSA, 1983) reducing to 10.14 % (1.32 million ha) in 1980-82 i.e., loss of 2.69 %.
Chapter – II Review of Literature
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2.3.3. Biodiversity Assessment and Inventory
Assessment of the forest resources is a prerequisite for conservation and
sustainable strategies. It is understood by the scientific community and has resulted in
studies pertaining to plant diversity in proximity to agriculture (Fujisaka et al., 1998) and
regeneration of native species in degraded area (Manilal et al., 1989; llorkar and Totey,
1999). Following it is the concept of ‘keystone’ species (Terborgh, 1986) in tropical
forests. The notion is neither adequately explored, nor has its relevance to sustainable
been evaluated (Hartshorn, 1995).
The growing awareness of the importance and rapid decline of biodiversity has
given an unprecedented impetus for speedy inventory and monitoring of regional and
global biodiversity to help in the assessment of priorities for conservation, and in
assessing environmental impacts (Stork and Samways, 1995). A variety of approaches
and techniques have been proposed for this purpose, the biodiversity can be assessed at
genetic, population, species and ecosystem level (Singh and Khurana, 2002)
The assessment of biodiversity is needed to be done both on spatial and temporal
scales. Spatial scale includes local inventory (i.e., sampling within biotopes) and global
inventory (i.e., sampling among biotopes). Local inventories can be combined to produce
a regional inventory to a biome level characterization (Joshi et al., 2002)
Inventories pertaining to forest resources in tropical countries like Costa Rica
(Wattenberg and Breckle, 1995; Breckle, 1997), Bangladesh (Nath et al., 1998), Bolivia
(Boom, 1986), Caribbean Islands (Forman and Hahn, 1980), Malaysia (Ashton, 1976),
British Guyana (Johnston, 1998), etc express the intensity of the assessment of the forest
patches and the necessity to conserve them.
In India with the advent of India’s new National Forest Policy during 1988, the
objective of forest management has shifted from timber production to biodiversity
conservation. To meet this objective it is necessary to collect quantitative information on
the vegetation. Floristic field survey on any forest region can be done following any one
of the standard sampling methodologies. From the literature survey it was inferred that
plot sampling method of various sizes is found to be widely used for the diversity studies.
Inventories has been carried out in most of the forest resources and the foremost
studies were in the great Himalayas (Singh and Singh, 1987; Khan and Tripathi, 1987;
Pandey and Joshi, 1998; Singh et al., 1991) followed by the Western Ghats which is
Chapter – II Review of Literature
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internationally known to harbour two of the world's hot spots (WCMC, 1992). Intensive
studies were carried out in Western Ghats by Pascal (1988), Sukumar et al., (1992), Pascal
and Pelissier (1996), Jha et al., 1997); Varghese and Menon (1998), Parthasarathy and
Karthikeyan (1997b), Muthuramkumar and Parthasarathy (2001) and Parthasarathy
(2001). Similar floristic quantitative studies are lacking from the forests of the Eastern
Ghats (Visalakshi, 1995; Kadavul and Parthasarathy, 1999; Jayakumar et al., 2002b).
2.3.3.1. Survey of Rare and Threatened Medicinal plant resources in India
Nayar, M.P. and Shastry, A.R.K. (1989, 90-91) Botanical Survey of India (BSI)
has edited and brought out three publications entitled “Red Data Book on Indian Plants”
Vol – 1,2 & 3, covering 235, 192 and 195 (622 in Total) threatened plants in 1987, 1988
and 1990 respectively. The prime objective of these bio documents is identification,
protection and conservation activities to plug further erosion of these plant
resources.Viswanathan, M.B and Melkani, V.K. (1999) stated that the Kalakkad –
Mundanthurai Tiger Reserve (KMTR) has 161 endemic and threatened plants.
The Botanical Survey of India (BSI) had assessed threat status of 622 Indian
plants, using herbarium information and the 1972 criteria for ‘red listing’ (Nayar and
Sastry, 1987-90). Red listing requires updating with latest criteria of International Union
for Conservation of Nature and Natural Resources (IUCN) and ground information. To
update the Red list of medicinal plant species of peninsular Indian states (Andhra Pradesh,
Karnataka, Kerala, Maharashtra and Tamil Nadu); Foundation for Revitalisation of Local
Health Traditions (FRLHT) used rapid and participatory methodology termed as
Conservation Assessment and Management Plan (CAMP) workshops, guided by
Conservation Breeding Specialist Group (CBSG) - India at the Zoo Outreach organization
(ZOO), Coimbatore (Ravikumar and Ved, 2000). Six such CAMP workshops organized
at Bangalore (4), Pune (1) and Hyderabad (1) during 1995 to 2001, using 1994 red listing
criteria at Bangalore for Karnataka, Kerala and Tamil Nadu and 2000 criteria at Pune and
Hyderabad for Maharashtra and Andhra Pradesh respectively. CAMP synthesized field
perceptions of about 200 field botanists including BSI, forest officials, industry staff etc.
Regarding 164 species, assessed for being extensively traded and /or endemic and /or
harvested essentially in destructive way (e.g. root, bark etc). Of these, 134 species were
red listed in one or more States.
Chapter – II Review of Literature
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Anon (2000), Forestry Sector in Conserving Indian’s Medicinal plants, FRLHT,
Bangalore, indicated that more than 85 % of the plant product of medicinal value comes
from the wild / forest areas.
Ravikumar and Ved (2000) have given the details of number of plant species being
used under different systems of medicine in India namely Ayurveda, Folk, Homoeopathic,
Modern, Siddha, Tibetian and Unani.They have mentioned number of threatened
categories of medicinal plants, the status habitat distribution and description of 100 red
listed medicinal plants of Southern India.
Sarin, Y.K. (2003) emphasized that inventory, quantitative techno-economic
evolution, standardization in terms of therapeutic efficacy and augmentation of medicinal
plant resources through conservation, domestication and large scale cultivation can reduce
the problem.
Sarcar et al., (2002) suggested intensive species inventory for threatened plants as
one of the conservation efforts and methods. Sarcar (2005) suggested floral resource
survey and inventorisation of medicinal plants as policy recommendation and action plan
under proposed State medicinal plant policy as one of the prime strategic management
tools. Other habits like shrubs, herbs, climbers and grasses, account for 66 % of forests
and include many species of great medicinal and commercial value that are to be given
importance for inventory unlike mere tree species as observed from the working plan
operations of Forest Department since 1900.
Though a large number of medicinal plants are facing different degrees of threats
for their mere survival but no specific policy measures or regulations are available in the
country to protect, propagate or to rehabilitate the threatened medicinal plant species,
which are on the verge of their extinction. Due to lack of effective regulation and
institution mechanisms supported by the legislative measure of the country, a large
number of medicinal plants which give life saving drugs are facing challenges for their
survival. The urgency of a committed action by different stakeholders namely, the
custodian of source areas of Medicinal plants and various other interested groups are
being realized now.
2.3.4. Biodiversity and Abiotic factors
Biodiversity responds to the physical environment and living surrounding.
The abiotic factors involve temperature, rainfall, geology, hydrology and topography
Chapter – II Review of Literature
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(Huggett, 1997). Similarly the surrounding physical environment i.e., topography and
climate results in dominancy of a specific community (Joshi et al., 2002). Climate is one
of the major factors in influencing biodiversity (Meher-Homji, 1996). Temperature and
precipitation are the most important determinants in biodiversity distribution along with
topography. Nevertheless abiotic data is used for conservation (Pressey et al., 2000).
Biodiversity studies at various levels are common yet there is meagre information on the
altitudinal gradient (Joshi and Tiwari, 1990; Bhandari et al., 1998; Prakash and Uniyal,
1999). To discuss about abiotic factors in assessing biodiversity one has to focus on
water, which is one of the major aspects needed for conservation (Postel, 1985; Murthy,
2000).
2.3.4.1. Biodiversity Conservation
Conservation planning seeks to identify spatial options for the preservation of
biodiversity (Williams et al., 1996). It involves making decisions on the basis of
biological, environmental and anthropogenic attributes (Pressey et al., 1993) and the
ultimate purpose of conservation is to inform and affect the conservation policy
(Robertson and Hull, 2001). As our need for ecosystem and global approaches to
biodiversity conservation increases (Turner and Gardner, 1990, Kareiva, 1993; Mooney
and Chapin, 1994; O’Neill et al., 1997; Bawa and Seidler, 1998), conservation planners
have sought objective and quantitative criteria for setting priorities among elements of
biodiversity to be protected (Bibby et al., 1992; Williams et al., 2002; Margules et el.,
2002; Gaston et al., 2002) like biosystematics (Desmet et al., 2002) and indicator species
(Peterken, 1974).
Various quantitative methods that allow relatively expeditious identification of
conservation-priority areas have been proposed in recent years. These approaches include
identification of hot spots of biodiversity (Myers, 1988a and 1990; Dobson et al.,1997),
rapid biodiversity assessment (Oliver and Beattie, 1993 and 1996), identification of
indicator and surrogate species (Curnutt et al.,1994), development or rarity and
complementary sets (Williams et al., 1996), gap analysis (Scott et al., 1993; Scott and
Csuti, 1996; Caicco et al., 1995; Wright et al., 2001; Britto, 2002a), identification of key
eco region (Olson and Dinerstein, 1998), and cost-minimizing or land-values analyses
(Ando et al., 1998).
Chapter – II Review of Literature
21
The question of how to manage conservation areas effectively has played by many
managers and researchers (Western and Wright, 1994; Calridge and O’Callaghan, 1997)
and many alternative approaches have been discussed. One such promising approach is to
integrate protected area management, biodiversity conservation and social development
(Western and Wright, 1994). Such an approach would entail an improved understanding
of the local pattern of resource use, so as to enable conservation strategies to be better
adapted to earn local livelihood and is a major criteria recommended for the National
biodiversity Conservation Board in India by Khoshoo (1996).
2.3.5. Remote sensing and GIS in Biodiversity Assessment
Maps are the ideal spatial database and often used in presentation of results of any
operational project and the quality of maps will depend on scale, accuracy, utility and
clarity to take any relevant decisions for sustainable management.
Application of Remote Sensing in assessment of forests and the environment was
initiated in late 1970s and early 1980s and this technique is quite reliable in mapping land
cover and vegetation types (Anon, 1987; Marceau et al., 1994; Schriever and Congalton,
1995; White et al., 1995; Roy et al., 1996; Martin et al., 1998).
Remote Sensing and GIS have a number of antecedents i.e., they bring together a
number of early technologies i.e., surveying, photogrammetry, cartography, mathematics,
statistics and the like (Reddy, 2000) and have demonstrated that they together can provide
reliable information on various facets of natural resources like land, water, mineral, ocean
resources, environmental management (Noss, 1996) and forest management (Roy 1999).
Nevertheless fuzzy classification of forest disturbance was found to be better than hard
image analysis techniques (Foody, 1996; Foody and Boyd, 1999).
GIS is most importantly used for modeling i.e., construction of models of the real
world from digital database, stimulating the effect of a specific process over time of a
particular scenario or theme for planning decisions and its effectual consequences. GIS
has also helped in reducing the errors creating in Remote Sensing (Thakker et al., 1999).
Remote Sensing and GIS combination has now become more important for ecological
studies (Marble and Peuquet, 1983; Krummel, 1986; Weir et al., 1988; Murali et al.,
1998).
Past two decades has seen tremendous application of this development in forest
management and the satellite images pertaining to Landsat MSS (Madhavan Unni et al.,
Chapter – II Review of Literature
22
1985; Saxena et al., 1992), AVHRR (Tucker et al., 1985; Prince, 1991), SAR (Wu and
Linders, 2000), EROS (Reed et al., 1994) and IRS (Tiwari et al., 1992; Prasad et al.,
1998; Joshi et al., 2001) were used to assess the forest stands using digital interpretation
techniques. However Roy and Ravan (1996) suggested visual interpretation for
identification of forest stands using FCCs (False Colour Composites) of different seasons.
The conceptual integration of Remote Sensing, GIS and field (laboratory) data for
forestry and environment assessment was understood, compared (Mack et al., 1997) and
accepted by the scientific community and resulted in studies pertaining to estimations of
biomass (Tiwari and Singh, 1984; Ripple et al., 1991; Ardo, 1992; Roy et al., 1993b; Roy
and Ravan, 1996), fuel and fodder potential (IIRS, 1994), afforestation potential site
selection, nutrient dynamics (Tiwari et al., 1996), energy linkages of agriculture
and forests (Wilson, 1988; Kondratyev, 1998), biodiversity (Fuller Tet et al., 1998; He et
al, 1998; Innes and Koch, 1998), its characteristic patterns (Jha et al.,1997; Lauver, 1997),
spedes distribution (Palmeirim,1988; Avery and Haines - Young, 1990), Wildlife habitat
management (Johnston and Naiman, 1990 ; Herr and Queen, 1993), Watershed
management (Dengo, 1989; Murthy,2000), conservation (Turner et al., 2001) etc.
The satellite Remote Sensing technology is also used for estimation of vegetation
stratification (Houghton and Woodwell, 1981; Botkin et al., 1984), forest resource stock
(Singh and Roy, 1990), growing stock (Udayalakshmi et al., 1998) and density
classification (Roy, 1998). Vegetation maps at community level pave a reliable
understanding of the vegetaion occurences and patterns (Whittaker, 1967; Austin, 1985;
Thomas et al., 1993; Roy et al., 1993a; Franklin et al., 1994; Nagendra and Gadgil, 1999).
The main utility of Remote Sensing is its repetitive (monitoring) capability i.e., it
provides a synoptic view of the earth cover at regular intervals (Roughgarten et al., 1991;
Stoms and Estes, 1993; Innes and Koch, 1998) and coupled with GIS can provide us with
updated data on periodic intervals and strategies could be planned accordingly based on
the positive or negative development of the concerned subject.
The applicability of Remote Sensing technology has led to comparative studies of
different satellite data (imagery) i.e., Landsat – TM, MSS (Wolter et al., 1995) and SAR
(Brisco et al., 1989) with SPOT (Ripple et al., 1991; Franklin et al., 1994; Miguel-Ayanz
and Bigging, 1997) and with IRS (Roy et al., 1988). Comparison of the vegetation area
Chapter – II Review of Literature
23
measurement is dependent on the type of satellite data used and mode of assessment
(Mayaux et al., 1998) and may hold true for the locality it is assessed.
Trisurat et al., (2000) discussed improvement of vegetation mapping which
improved upon the species response (Verbyla, 1995), canopy architecture (Bouman and
Van Kasteren, 1990; Leckie et al., 1992; Gougeon, 1995; Fournier et al., 1995; Meyer et
al., 1996) species characteristics (Price, 1994; Dietz and Steinlein, 1996), biochemical
characteristics of the species (Martin et al., 1998) and the abiotic features like soil and
sunlight (Atkinson et al., 1997).
2.3.5.1. Biodiversity Characterization
Remote sensing techniques in combination with field-collected data for the
assessment of biodiversity (Rames et al., 1997; Roy and Tomar, 2000; Nagendra, 2001)
has enhanced the accuracy of assessment, but these techniques need to be further refined.
Davis et al., (1990) proposed an approach to integrate existing data on species
distributions and habitat characteristics in biodiversity assessments using geographical
information system (GIS) technology, supported by Remote Sensing inputs.
The Indian Institute of Remote Sensing has developed system of creating geospatial
database on vegetation cover types, disturbance regimes and biological richness to
characterize biodiversity at landscape level for bio prospecting and conservation.
Biodiversity characterization can be improved by using aerospace and GIS technologies
(Roy, 1999). The efficacy of this system has been demonstrated for north east India and
Western Ghats (Roy, 2002 a, b) and can be adapted to similar studies.
2.3.6. Sustainability of Forest Resources
Sustainable forestry dates back to 1849 (Faustman, 1968) and WWF defines
sustainability, as improvement in the quality of human life within the carrying capacity of
supporting ecosystems and this is quite ambiguous.
Gow (1992) considers the following definition of sustainable development
provided by FAO (1989) to be broad enough to capture the multidimensionality of
sustainability particularly with respect to the maintenance and management of the natural
resource base. Sustainable development is the management and conservation of the
natural resource-base and the orientation of technological and institutional changes, in
such a manner as to ensure the attainment and continued satisfaction of human needs for
present and future generations. Such sustainable development (in agriculture, forestry and
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fishery sectors) conserves land, water, plant, and animal genetic resources, is
environmentally non-degrading, technically appropriate, economically viable and socially
acceptable.
Sustainable management of natural resources has become a key issue for survival
of planet earth. Successful actions to conserve biodiversity must address the full range of
cause loss and embrace the opportunities that genes, species and ecosystem provide for
sustainable development (WRI, IUCN, UNEP, 1992). Any biodiversity conservation
programme, however, cannot succeed without the involvement of local people. Policies
that concentrate on mechanisms, which ensure that local communities appropriate a large
share of total gains from their conservation of biodiversity, are needed. According to
Tisdell (1995) because of externalities and market-failure, specific incentives are needed
to make sure that local communities support biodiversity conservation.
2.4. Taxonomic literature on plants in KMTR
KMTR is one of the well-studied areas since British Period (first study was made
by Beddome in 1877) but there is no specific or well-defined checklist of medicinal plants
of the area till this date. However the study began with the survey of literature and
herbarium. Initial information on endemic and threatened tree taxa of KMTR was
collected from the following publications:
Beddome (1877), Bourdillon (1908), Rama Rao (1914), Brandis (1906), Hooker
(1982 Rep.ed), Gamble (1967 Rep.ed), Nayar and Shastry (1987, 1988 and 1990)
Ahmedullah and Nayar (1987), Nayar (1996), Ramesh and Pascal (1991), Gopalan and
Henry (2000).
Data on scientific name of species, their family, taxonomic status, habit, habitat
and historical distribution were incorporated from the works of Gamble (1915-1936), and
Hooker (1872-1897). Current distribution was documented from published State florae
such as Nair and Henry (1983), Henry, Kumari and Chithra (1987), Henry, Chithra and
Balakrishnan (1989). In addition, data for some species on current distribution were
collected from the reports of CAMP I (1995), II (1996), and III (1997). Published
literature such as Ahmedullah and Nayar (1986), Beddome (1877), Bennet (1986),
Gopalan (1997, 2000), Hajra and Mudgal (1997), Henry, Chandrabose, Swaminathan and
Nair (1984), Henry and Subramanian (1981), Henry and Swaminathan (1979), Henry,
Vivekananthan and Nair (1978), Jain and Sastry (1980, 1982, 1983a, 1983b), Jothi (2005),
Chapter – II Review of Literature
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Karthikeyan (2007), Lasardoo (1936), Manickam et al. (2003), Mittermeier (1988, 2000),
Mittermeier and Werner (1990), Mudaliar and Sundararaj (1954), Myers (1988, 1990),
Myers et al.(2000), Nair and Daniel (1986), Nayar (1996), Nayar & Ahmed (1984), Nayar
and Sastry (1987, 1988, 1990), Ramaswamy (1914), Rangachari (1919), Santapau (1970),
Sebastine and Henry (1960), Shankaranarayanan (1970), Sharma, Shetty and Karthikeyan
(1973), Subramanyam & Nayar (1974), WCMC (1992, 1994, 1996) and other related ones
were referred and documented.
2.5. Plant Endemism
In Greek ’en’ means within and ’demos’ means population. The word 'endemic' is
ascribcd to any taxonomic unit or taxon which occurs in a restricted area, usually isolatcd
by geographical or temporal barriers.
A.P. DeCandolle (1855) used the concept Endemic area which is defined as an
area of a taxonomic unit, especially species which has a restricted distribution or habitat,
isolated from its surrounding region through geographical, ecological or temporal
barriers. Engler (1882) classified endemics into two types viz. Paleoendemics which are
ancient in nature, and autochthonous endemics which are otherwise called Neoendemics
(Herzog, 1926). The Neoendemics are considered to have been newly evolved by
genetic process with closely related taxa in the vicinity. Within the group of
Paleoendemics, the type known as Patroendemics is also recognized and which are
confined to geographically isolated habitats of a stable ecosystem. Once such ecosystem
is disturbed, patroendemics fall into an ’evolutionary death trap’’ as there is not enough
genepool reservoir of such species for adaptive experimentation (which is a natural
process). Due to this, they become extinct prone.
According to Richardson (1978), all species start as neoendemics and end up as
palaeoendemics. It is generally considered that in favourable environmental conditions,
neoendemics tend to behave as Holoendemics and may lead to the formation of
palaeoendemics through the following steps : origin, expansion, stabilization,
diversification, migration, fragmentation, contraction and later extinction. Due to
selection pressures and environmental stress some relict species can become active
epibiotics. These stages can occur in both ways, leading either to contraction of species
with possible extinction or burst of speciation, depending on genetical, ecological and
temporal factors (Nayar, 1980). Holoendemic is the phase of endemic species between its
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origin, spread and eventually perhaps its loss. In this spectrum there is no time scale and
according to Richardson (1978).
”If endemic species are eliminated from our country it will mean they will be
annihilated from the whole world, will be lost to science, will be struck off the roles of
biological resources of this earth” Jain (1980). Hence, in conservation efforts we should
give priority to endemics. ”It is very essential that rare, threatened and presumed extinct
taxa should be repeatedly searched for in their type localities for correct assessment of
their position” (Nair, 1991). In late 1960’s, Peter Scott, a botanist with the help of Ronald
Melville evolved the concept of Red Data Books on Plant Species.
2.6. Extinction of Species and Process
The International Union for Conservation of Nature and Natural Resources (IUCN)
played an important part in focussing World's concern in the loss or extinction of species
during the last two decades. IUCN's Red Data Book (Anonymous, 1966) is a path finder
and since then several nations published their Red Data Books (Perring & Farewell, 1977 ;
Takhtajan, 1975). With the pre-dominance of Homo sapiens and with the advent of
industrial revolution of 20th century resulting in vast habitat disturbances concomitant
with the exponential population growth, extinction of some of the vast array of plants and
animals constituting our world's rich biological diversity became the order of the day. Of
the estimated 10 million plant and animal species, not more than 1.5 million is recorded in
scientific literature. According to IUCN's Threatened Plants Committee about 10 %
(20,000 to 30,000) of the World's flowering plants are dangerously rare or under threat.
According to Raven (1990), ‘it is likely that a quarter of all species of Indian plants
may be either extinct or on their way to extinction within 25 years, and the great majority
of the species present now are likely to be extinct within a century if proper conservation
efforts are not in place in time’.
In any biologically evolving system, where evolution sets in motion, extinction of
the unit in the process of natural selection is a biological necessity and this is the main
point underlined in Darwian’s "'The Origin of Species by Means of Natural Selection".
According to Martin (1967), extinction is not an abnormal fate in the life of a species.
When all the niches in a biotic community are filled, extinction takes place as part of the
evolution of new species. Hence this phenomenon of extinction is a natural process. In
the evolutionary pathways of organisms, there are extinctions of the unfit and survival of
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the fittest. However, the present day changes in the environment and habitat are so
unnatural and drastic that plant species (Nayar, 1977) could not get evolutionary time
span for survival or adaptive radiations.
Levins (1970) estimated that since the beginning of the Cambrian, species have
been getting extinct at the rate of about one per year though not uniformly. According to
Hooper (1971), the factors leading to extinction can be classified under the following
categories :
Demographic stochasticity; Environmental stochasticity; Natural catastrophes and
Genetic stochasticity.
Hooper (1971), observed that ”a minimum viable population of any given habitat
is the smallest isolated population having 99 % chance of extant for 1000 years despite
the forseeable effects of demographic environmental and genetic stochasticity and natural
catastrophies".
Extinction of species may be due to environmental factors, ecological
substitutions, biological factors, pathological causes and anthropogenic interference in
the form of habitat destructions, human overkill or overexploitation.
1. Environmental factors : When climatic changes occur beyond the tolerance limits of
a species, extinction of inflexible species is inevitable.
2. Ecological substitistes : A species or group of species is replaced from the same
matrix by competitive species which have competence to survive.
3. Biological factors : In the co-evolution of plants and specific pollen vectors there is
close parallel evolution. Due to loss of habitat, many pollen vectors specific to plant
species are getting decimated. This causes loss of chance cross pollination leading to
loss of gene flow.
4. Pathological causes : Outbreak of diseases is one of the major causes of the loss of
species. A recent example is the spread of Dutch Elm disease resulting in the process
of wiping out of Elm trees in Europe and America. Monoculture of crops resulting in
genetic uniformism, and quick mass transport are some of the causes for quick spread
of plant diseases.
5. Habitat destruction : When man used fire as a means of controlling nature and
invented stone tools for killing animals during Early Stone Age, he started interfering
with Nature's ecosystems. One of the major tenets of Ecology is "that all ecosystems
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tend towards stability (Goldsmith et al., 1972) and that the more diverse and complex
the ecosystem, the more stable it is, i.e. the more species there are and the more they
interrelate the more stable is their environment". This means a stable ecosystem has a
vast array of plant and animal species, closely knit together in ever perpetuating web
of life and a loss of one component of this mosaic, affects the totality of the
ecosystem.
Due to man-induced-changes in the form of road building, forestry plantations,
construction of large scale projects in areas of high conservation value, the original habitat
is fragmented into isolated patches. Each such isolated fragment behaves like an Island
and the theory of Island biogeography (Mac Arthur & Wilson, 1967) holds good. Most of
the Western Ghats in India and Western and Eastern Himalayas come under this category.
In such a fragmented system smaller fragments will initially contain more species than
they can hold at equilibrium. The rate of extinctions or loss of species is faster in such
smaller group than in a bigger habitat as ecological niches available for survival will be
proportionally reduced.
2.7. Rare and threatened plant resources and Monitoring
Rarity of species requires proper scientific definition and many workers give
different attributes as per their perception with reference to beauty of flowers, usefulness
and availability on different qualifications. However, according to Drury (1974), "a rare
species is the one that occurs in widely separated small sub-populations so that inter-
breeding between sub-populations is seriously reduced or is restricted to a single
population".
According to the Survival Service Commission, the following categories of taxa
are defined (i) Extinct, (ii) Endangered, (iii) Vulnerable, (iv) Rare (IUCN Plant Red data
Book, 1978).
The 1994 IUCN Red list categories of plant species has been revised in 2000. The
revised categories of plant species is dealt in chapter IV under Material and Method.
The foremost task in the conservation process is to prepare an inventory of plants
that are rare or threatened otherwise. Thus, reliable and documented information on Rare,
Threatened or Endangered plants is prerequisitic to actual implementation of plant
conservation programmes. To determine the status of the plant the IUCN' Red Data Book
categories can be employed. Mac Bryde (1979) discussed in detail the information that is
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required to use the Endangered species Act of 1973 (amended in 1978) which. was the
first federal endangered species legislation to include protection of plants, which are in
danger of extinction in their natural habitats. The inventory should take into consideration
scientific information like species taxonomy, historical range, present known range,
current population numbers and trends, threat to extant populations, all of which can be
determined by field studies and observations. Nayar and Raju (1974) adopted a Degree
Reference System for plant records and observed that grids encompassing concentration
of plants can be taken as parameters for mapping endangered habitats and threatened
species for conservation purposes. Davy and Jefferies (1981) underlined three basic
approaches to the monitoring of rare plant populations i.e.. Demographic, Genetic and
Resource allocation approaches.
2.8. Thematic Mapping of Abiotic factors
A Thematic map is a simple map made to reflect a particular theme about a
geographic area. Thematic maps can portray physical, social, political, cultural, economic,
sociological, agricultural, or any other aspects of a City, State, Region, Nation, or
Continent.
All living population responds to the surroundings i.e., abiotic environment, which
includes rainfall, temperature, light, soil, geology, topography, fire, water, chemical factors
like oxygen levels, salt concentration, presence of toxins and acidity (Whittaker, 1956;
Huggett, 1995). Environmental heterogeneity in both space and time has been important
in the evolution and maintenance of biodiversity (O'Neill et al., 1986) and the prevailing
vegetation structure is the end product of all confluent dynamic influences (Subramanian
and Murthy, 1968; Gupta et al., 2000). Biological diversity and its relationship to
underlying environment have recently attracted considerable interest in the scientific
community (Thompson and Brown, 1992; Haila and Kouki, 1994) especially in
conservation biology (Miller, 1994; Roy, 1999).
Climate is one of the major factors affecting biodiversity and studies on rainfall
regimes (Puri, 1960; Champion and Seth, 1968; Dye and Walker, 1980; Sharma et al.,
1986; Pascal, 1988) has led to better understanding of the climate on the forest ecosystem.
Since the climate is not the only factor, studies pertaining to confluent influences of
altitude (Bhandari et al., 1998; Pandey and Joshi, 1998; Prakash and Uniyal, 1999), slope
(Shreve, 1924; Hutchins et al., 1976; Swanson et al., 1988; Singh et al., 1991; Forman,
Chapter – II Review of Literature
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1995; Wu and Loucks, 1995; Uniyal et al., 2002), geology and soil (Raina et al., 1994)
have increased the precision of the abiotic influences on biodiversity.
The application of Remote Sensing in assessing and mapping the landforms,
physiography, hydrology, topography and geology has increased tremendously
(Bhattacharya, 1999; Jayaprasad et al., 2002) and nowadays the confluential effects i.e.,
geomorphology (Rao et al., 1996; Nichols et al., 1998: Burnett et al., 1998) and Hydro
geomorphology (Pandiyan et al., 2002) are no exception.
2.9. Existing Policies, Legal Acts and Rules
The major policies, legal Acts and rules which control and govern the protection
and conservation of the flora and fauna in Tamil Nadu including KMTR are in brief given
chronologically.
1 1882 - Tamil Nadu Forest Act. 2 1894 - National Forest policy. 3 1927 - Indian Forest Act. 4 1946 - Tamil Nadu Preservation of Private Forest Rules, 1946 5 1949 - The Tamil Nadu Preservation of Private Forest Act. 6 1952 - National Forest Policy, 1952. 7 1955 - The Tamil Nadu Hill Areas (Preservation of Trees) Act. 8 1957 - Tamil Nadu Hill Areas (Preservation of Trees) Rules, 1957 9 1967 - Tamil Nadu sandalwood Transit Rules, 1967 10 1968 - Tamil Nadu Timber Transit Rules, 1968. 11 1970 - Tamil Nadu Sandalwood Possession Rules, 1970 12 1972 - The Wild life (Protection) Act 1972 13 1980 - Forest Conservation Act, 1980. 14 1982 - Tamil Nadu Prevention of Dangerous Activities of Bootleggers,
Drug Offenders, Forest Offenders, Goondas, Immoral Traffic Offenders and Slum Grabbers Act, 1982 (commonly called Goondas Act
15 1982 - Tamil Nadu (Movement Control) Order, 1982 16 1986 - The Envioronment( proction)Act, 1986 17 1988 - National Forest policy, 1988. 18 1988
-Tamil Nadu Maintenance of Accounts in Respect of Scheduled Timber for Industrial or Commercial Purposes Rules, 1988
19 1991 - Forest (Conservation) Rules, 1991 20 1991 - Tamil Nadu Wildlife (Transit) Rules, 1991 21 1994 - Tamil Nadu Rosewood Tree (Conservation) Act, 1994
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22 2002 - Biological Diversity Act, 2002. 23 2002 - The Wild life (Protection) Amendment Act 2002. 24 2002 - The Export Import Policy, 2002-2007.
2.10. Stralegies for conservation of Rare or Endangered species
Henefin,M.S., et al., (1981) indicated the guidelines for the preparation of status
reports on rare or endangered plant species with following details. Species Information,
Assessment and Recommendations, Information Sources, Authorship and New Information
The main function of the management strategy is that once a species is listed as
vulnerable, threatened or endangered, there should be ways to prevent the loss of listed
species. There should be organised methods to restore these species in the original habitat.
Each species requires its own strategy as per its distributional range, its biology and
reproductivc potential.
Following strategies are needed for each category of listed species :
i) In situ conservation of endangered species in their natural eco-system, biosphere,
national parks and sanctuaries. There should be designated areas (i.e.,) Refuge for
our endangered species which should have legal status.
ii) Preservation and cultivation of endangered species in the chain of Botanic Gardens
and Arboreta.
Habitat loss : The loss of special habitats lead to eventual reduced populations,
fragmentation of population and finally extinction. It is necessary to evaluate in the status
reports, the present habitat available, past range and future requirements and buffer zones.
The habitat loss may be due to urbanization, forest clearance, agricultural or forest
operation, nutrient enrichment, road building, mining or quarrying, water or air pollution
and pressure from introduced population. Concomittant with this, there are other threats
like over utilization, commercial exploilation, even over collection for scientific or
educational purpose. It is seen populations of many commercially wild useful species
decline when the reproductive potential of these species reach critical threshold limit.
In the centres of genetic diversity where there are abundant variations as seen in
many river valleys, a dam constructed to impound the waters will destroy all the species
diversity in the impounded area.
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Introduced exotic species often become aggressive colonisers and sometimes they
threaten the habitat of native species. In such cases native species are on the run for
survival. Introduced tropical weeds like Parthenium hysierophorus, Lantana camara, etc
have caused loss of habitat for many tropical herbaceous flora. Preservation of endangered
species in seed banks and through tissue culture . Artificial propagation should be started
when the species is on the decline and the natural population is fragmented. There should
be free exchange of germplasm material in order to avoid the risk of catastrophic loss of
genetic material at one centre resulting in the total extinction of the species.
2.11. Strategic Management
Strategy connotes a broad commitment made by the firm that defines and
rationalizes its objectives and it intends to pursue them. Chandler (1962) has stated that:
“Strategy can be defined as the determination of the basic long term goals and objectives
of an enterprise and the adoption of courses of action and the allocation of resources
necessary for carrying out these goals”.
Drawing on Chandler and others, Maccrimmon (1993) has defined strategy as:
“Coordinated series of actions involving resource deployment and being goal directed
with goals serving to coordinate actions”. In the Strategic management literature, the
concept of strategy has been studied in different ways. The most commonly used
approach has been Porter’s (1980) generic strategies:” Cost leadership, Differentiation,
and Focus. Another approach is Miles and Snow’s (1978) strategic typology: Defenders,
Prospectors, Analyzers and Reactors. Researchers have also studied variation of Miles
and Snow’s typology in terms of strategic orientation: Analysis, Defensiveness, Futurity,
Riskyness and Proactiveness (Venkatraman: 1989). Strategy making in terms of
Command, Symbolic, Rational, Transactive and Generative has been studied by
Govindrajan and Gupta, 1985; Hart & Ben bury, 1993; Miller, 86. Mintzberg (1987) has
defined strategy as 5 P’s (Plan, Ploy, Pattern, Position and Perspective).
The utilities have to follow a low cost strategy because they are regulated, can
operate only in a limited geographical area, and have to supply to all the consumers in that
area. Within low cost strategy, they can have variations. Efficiency improvement is a
part of low cost strategy (Ramaswamy et al., 1994) and hence is a variable of strategy for
the present study. Process automation has a positive effect on cost (Dvir et al., 1993),
hence, this is another variable considered here. Customer focus is the fourth variable
Chapter – II Review of Literature
33
considered here. In the public utility context, the strategy of the utility may not be very
clear. Hence, we will use the definition of strategy give by Minzberg (1987). According
to him, the strategy of an organization is defined as “Plan – consciously indented course
of action and pattern in a stream of actions”.
Strategic planning is another dimension of strategy (Bracker & Pearson, 1986;
Kukalis, 1991; Pearce & David: 1987; Powel, 199a). The dimensions of strategic
planning used are namely: mission statement, trend analysis, competitor analysis, long
term goals, annual goals, short term action plans and ongoing evaluation.
Strategic planning is an important aspect, which is relevant for this study and thus,
is another variable. The relevant dimensions of strategic planning for the present study
are vision and mission statements, long term goals and objectives.
Indian Medicinal Plants, A Sector Study by Export Import Bank of India, Mumbai.
(1997) mentioned that out of 25 million species of the world only 20,000 species are
documented and only 5000 species are phytochemically studied. There was export of
60 % of this resource in 1994 –97. Globalization has enhanced the medicinal plants trades.
Hamilton Alan, (2003) reports that total annual imports of Medicinal, and aromatic
plant material into all countries during 1990s was amounted to an average of 4,00,000
tones, valued at US $ 1.5 billion, valued at 1.2 billion showing a 100 % rise between 1991
and 97 and India exports 46,000 metric tons following China in his paper “Medicinal
plants and conservation” issues and approaches, International plant conservation Unit,
WWF-UK, Panda House, Catteshall Lane, UK.
2.11.1. Study of Stakes and Stakeholders of Medicinal Plants in KMTR
In the last decades of the 20th century the word "Stakeholder" has become more
commonly used to mean a person or organisation that has a legitimate interest in a project
or entity. In discussing the decision making process for institutions including large
business corporations, government agencies, and non- profit organizations, the concept
has been broadened to include everyone with an interest (or "stake") in what the entity
does. This includes not only its vendors, employees, and customers, but even members of
a community where its offices or factory may affect the local economy or environment. In
this context, "Stakeholder" includes not only the directors or trustees on its governing
board but also all persons who "paid in" the figurative stake and the persons to whom it
may be "paid out" (Freeman, R.E. 1984). Stakeholder analysis is the analysis that aims to
Chapter – II Review of Literature
34
identify the stakeholders that are affected by the results of a project simultaneously with
the result’s success depending on the cooperation between the stakeholder and the project.
It is important to identify all stakeholders for the purpose of identifying their success
criteria and turning these into quality goals. A stakeholder analysis is performed when
there is a need to clarify the consequences of envisaged changes or at the start of new
projects and in connection with organisational changes generally. The stakeholder is any
person or Organization who / which can be positively or negatively impacted by, or cause
an impact on the success of the project (Freeman, R.E. 1984).
A Stakeholders analysis of medicinal plants was performed among the various
groups of Stake holders during this study in KMTR. The methodology applied and the
results obtained are elaborated in concerned chapters.
2.11.2. SWOT Analysis
SWOT analysis is a strategic planning method used to evaluate the Strength,
Weaknesses, Opportunities, and Threats involved in a project or in a business venture. It
involves specifying the objective of the business venture or project and identifying the
internal and external factors that are favorable and unfavorable to achieve that objective.
The technique is credited to Albert Humphrey, who led a convention at Stanford
University in the 1960s and 1970s using data from Fortune 500 companies.
The use of medicinal plants and their processed essence in industrial countries is
increasing. Hence the main purpose of SWOT analysis with a systemic approach to
production situations of medicinal plants is being applied in various countries.
Sarcar (2005) under “A Framework for Strategic Management of Medicinal
Plants” applied SWOT analysis and the results found in his study were divided into four
categories namely Strengths, Weaknesses, Opportunities, and Threats.
Similar Strength, Weakness and Opportunities (SWOT Analysis) in medicinal
plant sector was carried out by Endashaw Bekele (2007) for Japan Association for
International Collaboration of Agriculture and Forestry for Actual Situation of Medicinal
Plants in Ethiopia (JAICAF, 2007). “SWOT” analysis of medicinal plant production in
Andean Region of South America was carried out by Carlos Aguirre-Bastos (2008) to
draw a Roadmap for the Commercial Development of Medicinal Plants of the region.