InVEST Case studies Nirmal Bhagabati Emily McKenzie.
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Transcript of InVEST Case studies Nirmal Bhagabati Emily McKenzie.
InVEST Case studies
Nirmal BhagabatiEmily McKenzie
Outline
• Colombia– Water funds– Permitting, mitigation and offsets
• China– Land-use planning
• Virungas: Uganda, Rwanda and DRC– Advocacy & awareness-raising
• If we have time and interest: Hawaii & Tanzania
China
Tanzania
InVEST demo applications
Hawai’i
• Test InVEST with field partners and experts• Ensure useful, relevant• Refine models
Colombia & Ecuador
California
Growing number of sites
Mekong
AmazonAlbertine
Rift
Puget Sound
Mexico
Borneo &Sumatra
Vancouver Island
Colombia
Cauca Valley Water Fund, Colombia
• Water fund investments
• TNC-ecosystem service payments to fund conservation
• Prioritize investments
Water For Life Water Fund
Maintain consistent water flows necessary for drinking water, biodiversity and agriculture through a coordinated strategy.
Committee:Watershed AssociationsSugar Cane AssociationsThe Nature ConservancyVallenpaz (local NGO)
Water For Life Water Fund
Linea BaseBoundary Scenarios - CIAT
No Water Fund
Current Landscape
Degraded ForestWaterParamoDeciduous ForestPastureWooded pastureMixed agricultureSugar caneRangelandSuburbanMinesUrban
With Water Fund
Legend
wyield_no
Value
High : 1004.07
Low : 164.16
No Water Fund
With Water Fund
Legend
usle_no
Value
High : 75.7051
Low : -194.466
Change
Annual Water Yield (mm/yr)
Annual Erosion (tons/ha/yr)
Demonstration Scenarios - CIAT
1005
164
Legend
wyield_no
Value
High : 1004.07
Low : 164.16
1005
164
-837 0213246266838
76
0
Legend
usle_no
Value
High : 75.7051
Low : -194.466
9
0
-70 -2-1.5-1.1013
Priority Areas for Investment
Priority Areas for Investment
Stable ErosionDecreased Yield
Priority Areas for Investment
Stable ErosionDecreased Yield Improved Erosion
Greatest Improved Yield
• Identify priority investments:– realistic scenarios for each basin– biodiversity portfolio– climate change
• Make investments!– Monitor and iterate
Next Steps
• Science-policy links strong
• Science gaps– Impacts of alternative management actions on services
and biodiversity– Simple sub-annual water yield model that differentiates
surface and groundwater
• Capacity– Committee relying on outside expertise and technical
capacity
Lessons
Colombia
Cesar Department, Colombia
• Permitting and Licensing
• Ministry expanding requirements to include biodiversity and ecosystem services
• Demonstrate approach with coal mining sector
Services of interest:
Water quality (Tier 1 nutrients and sediment)
Water yield (groundwater and surface)
Cesar Department, Colombia
Current Landscape
Demonstration Case Scenarios
12,000 km2
Permits Granted Permits Requested All Permit Blocks
Beneficiaries
12,000 km2
Permits Granted Permits Requested All Permit Blocks
Areas that provide the same service to the same people
Service Sheds
Change in sediment export(t/ha/yr)
390
0
Erosion ImpactPermits Granted Permits Requested All Permit Blocks
Rank Per Area Total Impact
1-55-99-1313-17
Rank By Total Impact
Permit blocks ranked by erosion and nutrient pollution per unit area
6 mines can be offset to same beneficiaries with no ratio
Permits with Potential for Mitigation
More Aggressive Restoration
Conservation priority areas for restoration
• Define mitigation ratio
• Summarize impacts and options
• Present framework to Ministry and train technical team
Next Steps
• Science-policy links strong
• Science gaps– Simple water yield model that differentiates surface and
groundwater– Data availability (aquifers, retention rates)
• Capacity– Will train Ministry staff (sustainable?)
Lessons
China
Baoxing County, China
• Land-use planning
• Ecosystem Function Conservation Areas
• Large scale payment schemes
Biodiversity
Taxus yunnanensis Yunnan snub-nosed monkey
Yunnanensis Common Crane
How InVEST can help policy
What InVEST can help:
Identify/map key ES regions with simplified procedure and fewer data.
Provide spatial/visualized results for government agencies’ decision-
making.
In an effort to further increase the benefits of these measures, with the help of
GEF/UNEP, the GOC plans to implement an Ecosystem Function Conservation Areas
(EFCAs) program both in regional scale and local scale.
Background• As part of its efforts to reduce floods in the Yangtze River basin, The Government
of China (GOC) is implementing a series of soil and vegetation conservation programs in the upper Yangtze River basin.
Natural Forest Protection Projects
Grain for Green Project
Shelter Forest System Project
Background--Overview of Baoxing County
210 km to chengdu3114 sq kmPopulation 50,000multinational place
Baoxing Landuse Types
Forest land : 69.2%
Native grass: 20.6%
Crop land : 2.32%
Town and residential:0.78%
Biodiversity
Red panda
Davidia involucrata
Musk deer
chinese monal
Giant panda
429 species of vertebrates, including 17 first-class protected, 51 second-class protected
3,000 plants among which 8 species have been listed as National First Class Protected Species (I), 20 as National Second Class (II)
How InVEST can help policy
County government situation• Sustainable Master planning • Payment for Ecosystem service,
especially for Yaoji hydropower station, carbon salling
• Tourism/infrastructure/mining development planning
GEF project background – demo site for local scale EFCACCICED task force – case study
Ecosystem service Model A : Water yield
Error: 4.4% with the observed data.Results were varying with the Parameter of Zhang_cteDefault: 9.433Input: 4.433
Ecosystem service Model B : Water Retention
Error :11.3% with the observed base flow from Nov to March.
Ecosystem service Model C : Soil Retention
• Result of model: t/sq km, • Observed data: t/ sq km• Modification: use different
equation for LS factor in different slope.
• Threshold: 30%
For low slope<30%:
For high slope>30%:
Sheet erosion
Gully erosion
Ecosystem service Model D : Pollution control
less pollution in BaoxingAdd precipitation layer or through flow layer
Ecosystem service Model E : Biodiversity
• Data prepare: threat source including cropland, roads, mine
• The result is agree with our knowledge about baoxing
• species and habitat size and location should be take in account
Ecosystem service Model F : Carbon
• Hard to get the current and future harvest rate
• Soil carbon data only related with soil types not with land use types
Ecosystem service Model G : Pollination
Application for EFCA Mapping
Biodiversity
Species database maps (CAS, 2007)
Ecological Function Maps -Water Retention- Soil Retention- Carbon Storage InVEST
Demand Information-Hydropower/irrigation/flood
mitigation/etc- Land production/sediment reduction- Carbon sequestration Estimate
relative demand. Circle high contributing areas
Draft EFCA map
Overlay
Application of Results
Albertine Rift
• Advocacy
• Awareness & education
• Trans-boundary context
Albertine Rift: Uganda, Rwanda & DRC