Upload
others
View
9
Download
0
Embed Size (px)
Citation preview
Economical analysis in Júcar RiverBasin
EURO – RIOC
International Meeting on Water Framework DirectiveImplementation
Cracovia, 27-29 september 2004
Teodoro Estrela
Júcar River Basin Authority
3 600Water demand(hm3/year)
3 300Water resources(hm3/year)
370 000Irrigated land (ha)
1 400 000Equivalent populationdue to tourism(inhabitants)
4 360 000Population(inhabitants)
43 000Area (km2)
Júcar River Basin
GALICIA
PRINCIPADO DEA STURIAS
CANTABRIA
PAISVASCO
NAVARRA
ARAGON
CATALUÑA
VALENCIACASTILLA-LA MANCHA
MADRID
EXTREMA DURA
ANDALUCIA
MURCIA
BALEARES
CANARIAS
LA RIOJA
CEUTA
MELILLA
CASTILLA-LEON
Júcar
• Economic characterisation of water uses andscenarios 2015.
• Cost recovery analysis
• Methodological approach for “resource cost”and “environmental cost”
Economic Analysis of water use
Crops Total ha
Non irrigatedha
Irrigatedha
Waterconsumptio
n 10 6 m3
Dose N 10 3 Kg
Cereals 463 805 381 288 82 517 270 39 805
Olive 108 638 97 861 10 776 41 4 912
Vineyard 215 901 183 173 32 728 109 8 514
Vegetables 33 974 880 33 094 170 5 336
Citrus 212 172 0 212 172 1 092 59 387
Fruit trees non-citrus 144 023 108 587 35 436 130 6 565
Other crops 385 508 333 329 52 178 310 5 326
Scenarios of Total Gross pressures of Agriculture in 2015 in the Júcar RBD.Source: GDW, RBD Agriculture Forecast Model
Scenarios of pressures
Cost recovery analysis
• Institutional map of water services, responsibilities andapplied tariffs
• Aggregated cost recovery analysis for the whole Júcar RBD
• services of abstractions and conveyance of surfacewaters (high supply level)
• water distribution, wastewater collection and watertreatment services to urban users (low supply level)
• water distribution to agricultural users (low supplylevel)
• Detailed studies for main Júcar RBD unit demands: CaseBenageber-Loriguilla hydraulic system
SERVICE RESPONSIBILITY TARIFFS
Abstraction and conveyance ofsurface waters (dams and main
channels) River Basin Authority
Canon de regulación (regulation fee)Tarifa de utilización (distribution fee)
Wells(groundwater)
Service provided by Municipalities,Irrigation Associations or individual
users
Either by Municipalities or by IrrigationAssociations (see below)
Water distribution to urbanareas
Municipalities (with RegionalGovernments in some cases)
Tarifa de abastecimiento (urban watersupply fee)
Water distribution to irrigationIrrigation Associations (“public
entities” with delegatedmanagement)
Derrama (apportionment of taxes):Apportionment of expenditures
(according to cultivated ha, water use orcombination)
Wastewater collection andtreatment in urban areas
Municipalities and RegionalGovernment
Canon de saneamiento (sewage fee, onlyfor urban and industrial uses)
Control of dischargesRiver Basin Authority
Canon de control de vertidos(surveillance discharge and spill fee,only for urban and industrial uses)
Institutional map of water services, responsibilitiesand applied tariffs
Hydraulic infrastructure facilities for services ofabstractions and conveyance of surface waters
• Júcar RBA is in charge ofmanagement of each waterexploitation system
• Collection and organisation indatabases and GIS of data for the19 main hydraulic infrastructures(dams and channels)
Cost recovery of water distribution, wastewater collectionand water treatment services to urban users in Júcar RBD
0,021
0,699
1,05
0,012
0,698
0,29
1,00
57,14%
99,86%
89,46%
0,33
95,74%
0
0,2
0,4
0,6
0,8
1
1,2
Abstraction Distribution Wastewater treatment TOTAL COST
Costs Users collection % Cost recovery
Detailed case study: Benageber-Loriguillasystem
Costs and tariffs for urban usersof Valencia city
010203040506070
Abs
trac
tion
(dam
s)
Con
veya
nce
(cha
nnel
s)
Wat
erdi
stri
butio
n
Was
tew
ater
colle
ctio
nan
dtr
eatm
ent
Dis
char
ge
€cen
ts/m
3
0%
20%
40%
60%
80%
100%
Total cost Incomes from tariffs Recovery (%)
02468
101214
Abs
trac
tion
(dam
s)
Con
veya
nce
(cha
nnel
s)
Wat
erdi
stri
butio
n
Was
tew
ater
colle
ctio
nan
dtr
eatm
ent
Dis
char
ge
€cen
ts/m
30%
20%
40%
60%
80%
100%
Total cost Incomes from tariff Recovery (%)
Costs and tariffs for irrigation users ofCampo del Turia channel
Costs, tariffs and recovery for urban andagricultural users
Cost of water services
• Cost of water services according WFD:
• Financial (traditional approach)
• Resource (a methodological approach has beenproposed)
• Environmental (different approaches are beingdiscussed)
Resource cost
•The marginal opportunity cost of the resource (MOCR) ina certain location and time can be defined as the cost for thesystem of having available one less unit of resource.
• The assessment of the MOCR with hydro-economicmodels. They take into account resource availability,storage capacity, losses, return flows, surface and GWinteractions, and willingness-to-pay (or marginal economicvalue) of demand units.
•The MOCR is obtained by comparing the aggregatedbenefits of the system with the aggregated benefits thatwould occur if one less unit of water were available at agiven location and at a given time.
Traditional Irrigation systems (Citrics)
0,00,20,40,60,81,01,2
0 5 000 10 000 15 000
m3/ha/year
€/m
3
Mancha Oriental Aquifer
0,00,10,20,30,40,50,60,7
0 2 000 4 000 6 000 8 000
m3/ha/year
€/m
3
Annual demand economic functions
0.00.20.40.60.81.01.21.4
oct-4
0
oct-4
5
oct-5
0
oct-5
5
oct-6
0
oct-6
5
oct-7
0
oct-7
5
oct-8
0
oct-8
5
oct-9
0
oct-9
5
oct-0
0
mounth
€/m
3
Upper Jucar river0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
oct-4
0
oct-4
5
oct-5
0
oct-5
5
oct-6
0
oct-6
5
oct-7
0
oct-7
5
oct-8
0
oct-8
5
oct-9
0
oct-9
5
oct-0
0
mounth
€/m
3
Final Jucar river reach
0.00.20.40.60.81.01.21.4
oct-4
0
oct-4
5
oct-5
0
oct-5
5
oct-6
0
oct-6
5
oct-7
0
oct-7
5
oct-8
0
oct-8
5
oct-9
0
oct-9
5
oct-0
0
mounth
€/m
3
Upper Jucar river
Time evolution of MOCR in Júcar river system