981982 Natural Resources Management Intro

8/13/2019 981982 Natural Resources Management Intro

1/14

Natural Resources Management

Lecturer: Joaquin Magaa M. Sc.


2/14

Our Natural Resources

What is a Natural Resource?Objects people use.

n! "orm o" energ! that can be use# b!humans.

Objects, materials, creatures or energyfound in nature that can be used byhumans.


3/14

$se"ulness %hanges

Man! things a""ect our #e"inition o"use"ulness.

&he use"ulness o" man! thingschange o'er time.Man! things in the past (ere not

consi#ere# as natural resources.Our situation change# too.


4/14

Soil Resources

Lan# $se:))*+++ ,m ) lan# area - * /0 square

miles 1 )*)2/*+++ ha3 -%homit4 an# 5ra!* 622/3 .607 or less use# "or agriculture -Meermanan# Sabi#o* )++6 3 .

/87 broa#lea" "orest -Meerman an# Sabi#o* )++63 .Less than one percent $rban -Meerman an#Sabi#o* )++63 .


5/14

Soil9s major enem! 1 erosion.Stu#ies in the $S. ha'e sho(n a loss o"

one1thir# o" their topsoil to erosion.%on'ersion o" agriculture.$rban ;pansion* in#ustriali4ation*construction an# other alternati'e use o"lan#.


6/14

Water Resources

0+ 7 o" the earth sur"ace is co'ere# b!(ater.

&here is a big #i""erence bet(een (ateran# usable water.Most o" our usable (ater is on its (a! tothe sea.

&here is plent! o" (ater in this countr! =problems are: control* qualit! an##istribution.


7/14

>ish an# Wil#li"e Resources

Non#omesticate# animals* either gameor nongame* an# unculti'ate# plants.

Sometimes consi#ere# as rene(ableresource. ne( aspect o" "ish an# (il#li"emanagement has begun to emerge.

ecrease in species population can lea#to e;tinction.


8/14

>orest Resources

/27 "orest @ (oo#e# areas -%entral StatisticsO""ice* )++A 3.

/6.B7 Croa#lea" "orest @ B.8 7 Dine"orest - %entral Statistics O""ice* )++A 3.

%ommercial @ Noncommercial >orest?

%ommercial >orests =EcapableE an# Ea'ailableE

"or gro(ing trees "or har'est. Noncommercial >orest = inclu#es reser'e#"orest lan#s* unpro#ucti'e "orests* an# urban "orests.


9/14

Mature >orests: When !ou thin, o" theterm "orest* (hat #o !ou thin, o"?

(((.maine;mastree.com National 5eographic

>orest Resources


10/14

>orests begin to gro( slo(l! = 1 ft x yr .When a "orest is un#isturbe# "orcenturies = becomes a mature "orest.Dro#uces little (oo#.Foung "orest pro#uce more (oo#.5oo# management trees arerenewable.

Cut million trees

Still have more

>orest Resources


11/14

Other Resources

nerg! Sources:irectl! or in#irectl! "rom the sun.

Gumans ha'e use# the "orce o" mo'ingair* (in#* to mo'e our goo#s an# to pull(ater.Sun1charge# energ! resource is oil.Natural gas = a clean e""icient "uel%oal = 'er! plenti"ul.


12/14

Other Resources

Minerals:Most (i#el! use# are: >e* Hn* %u* l* Mg*Dh* Sn* $r an# Mo.5eologists agree that un#isco'ere#mineral reser'es "ar e;cee# (hat (eha'e alrea#! "oun#.>uture technolog! a#'ances orpossibilities o" mining lo(er1gra#e ore.


13/14

Other ResourcesRecreational Resources:

s nations become richer* changes placepressures on time an# mental capacities.Deople nee# to rela;* enjo! li"e an#enjo! nature.Recreational resources inclu#e: "orests*la,es* beaches* mountains* par,s* gameanimals an# "ish.%losel! guar# the qualit! o" ourecos!stems.


14/14

Re"erence:

%amp* William 5. an# aughert!* &homas C.. 6220. Managing OurNatural Resources. &hir# #ition. elmar Dublishers. B166%entral Statistics O""ice. )++A. n'ironmental Statistics: t a 5lance.5o'ernment o" Celi4e* Celmopan.

%homit4* Ienneth M. an# 5ra!* a'i# . .622/. Roa#s* Lan# $se* an#e"orestation: Spatial Mo#el pplie# to Celi4e. &he Worl# Can,conomic Re'ie(* 'ol. 6+* NO. B: A 0=86)Meerman* J. %. an# Sabi#o* W.. )++6. %entral merican cos!stemsMap: Celi4e. Drogram "or Celi4e.

Documents

981982 Natural Resources Management Intro