Agriculture*Water*Valua.on*in*Santa*Cruz,*Bolivia*...Agriculture*Water*Valua.on*in*Santa*Cruz,*Bolivia*!...
Transcript of Agriculture*Water*Valua.on*in*Santa*Cruz,*Bolivia*...Agriculture*Water*Valua.on*in*Santa*Cruz,*Bolivia*!...
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Agriculture Water Valua.on in Santa Cruz, Bolivia
to trigger Investment in Watershed Services
Samuel Vionnet
Sustainability Expert [email protected] +41 (0)76 372 90 27
www.valuingnature.ch
August 24rd 2015
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The project
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Context
• BoAom up approach (started in 2003) • 30 municipal governments involved • 85’000 downstream users compensaGng 4’000
upstream families • 170’000 ha of forest protected
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The Ques.on
How do we scale up Investment in Watershed Services in Santa Cruz, Bolivia?
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Long term objec.ve…
Forests ? Agriculture
…Protect the local forests by engaging with the agricultural sector to build new Investment in Watershed Services projects.
Water valua.on was used to: • IdenGfy the key stakeholders • Measure the benefits provided by key
ecosystems (e.g. forests) • Engage with stakeholders • BeAer understand the local context
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Forest’s ecosystem services assessed
Forests
(Local) Climate regula.on
Freshwater provision
Agriculture
Flood mi.ga.on Carbon storage/sequestra.on
Raw materials Other services
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What is the water footprint of Santa Cruz´s agriculture?
Main conclusions: • The region relies mostly on natural rainfall (99.5%). IrrigaGon is not significantly
developed yet. • Soybean is the biggest consumer of green water (47%)
1.7E+10'
2.8E+07'
Water'footprint'of'crop'cul7va7on'in'Santa'Cruz'2012'(in'm3)'
WF'green' WF'blue'
47%$
16%$
9%$
7%$
7%$
6%$
4%$ 4%$ 0%$
Green$Footprint$share$per$crop$in$in$Santa$Cruz$2012$
Soy$$ Maize$$ Sunflower$ Sugarcane$ Rice$
Sorghum$ Wheat$ CoCon$ Sesame$
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The value of rainwater and freshwater – Example of valua.on
2
1
Summer Winter
Soybean yield (t/ha)
A
600
300
Summer Winter
Effec.ve precipita.on/green water (mm)
B
C correcGon factor is accounGng for the fact that part of the yield difference comes from other factors as well
Rainwater valua.on:
AB⋅C
Correction Factor
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Results – One possible interpreta.on
~ 0.5 USD/m3
Interpretation: ~ 30 millions $/year loss of productivity if deforestation continue in the next 20 years
Forests
(Local) Climate
Freshwater
Other services
~ 0.05 USD/m3
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Another interpreta.on
0.5 USD/m3 Forests
Local Climate
Freshwater
Other services
0.05 USD/m3
Part of the forest providing the local climate regulaGon service is the Brazilian Amazon forest
Seasonal variability is more important than marginal change due to climate change
Resilience of the agricultural sector relies on irrigaGon in the future. Freshwater forest provision services will become important.
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The link with forests
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Conclusion
• Valuing water, in the context of ecosystem services, helps idenGfy the business case to protect the nature
• Water footprint assessment can support water valuaGon
• Water valuaGon quanGtaGve assessment, despite their uncertainty, is seen as important to support dialogue with stakeholders and trigger decision making
• Valuing water will not “save the world” alone. It should be embedded in current and new projects, stakeholders engagement processes, communicaGons, etc.
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Results over various sub-‐regions
! !
Green!water!value!(marginal!value)!
Green!water!value!(average!value)!
Blue!water!value!(summer!–!marginal!value)!
Blue!water!value!(winter!–!marginal!value)!
Sub6region!name! Code! In!USD/m3!
Pie!de!Monte!–!Centro!Oeste!
PM1!0.046! 0.570! 0.334! 0.173!
Region!del!Rio!Pirai!–!Zona!baja!
PI2!0.067! 0.225! 2.410! 0.485!
Aluvial!del!Rio!Parapeti! RP! 0.054! 0.599! 0.235! 0.157!
Region!sur!de!Santa!Cruz!–!Suelos!Arenosos!
SC!0.067! 0.260! 0.641! 0.283!
!