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Natural infrastructure in the nexus andsuggested basin assessment indicators                                            Re...
water for foodwater purificationflow regulationwater storage                                          water supply        ...
Ecosystems are infrastructure –     part of the “the stock of facilities, services and     installations needed for the fu...
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flood regulation                      water provisionwater purification                    water storage                  ...
Ecosystem indicators  Biodiversity and habitat loss    –Metrics: wetland disconnectivity, Red List Index  Water manageme...
Ecosystem indicators (continued)  Fish threat     –Metrics: Average annual catches of fish, estimated      potential fish...
Understanding ecosystem indicatorsfor the nexus• Water for food   – Agricultural water stress (cropland+irrigation vs. ava...
Healthy vs. Degraded approach9
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Natural infrastructure in the nexus_IUCN UNECE presentation_April2013

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Natural infrastructure in the nexus_IUCN UNECE presentation_April2013

  1. 1. Natural infrastructure in the nexus andsuggested basin assessment indicators Rebecca Welling Project Officer IUCN Global Water Programme Gland, Switzerland
  2. 2. water for foodwater purificationflow regulationwater storage water supply water storage water supplyfisheries provision water conveyance cultural services water for energy
  3. 3. Ecosystems are infrastructure – part of the “the stock of facilities, services and installations needed for the functioning of a society” Nature is part of the infrastructure portfolio of every country and every economy
  4. 4. 4
  5. 5. flood regulation water provisionwater purification water storage Nature+ nexusfisheries provision water for energy
  6. 6. Ecosystem indicators  Biodiversity and habitat loss –Metrics: wetland disconnectivity, Red List Index  Water management impacts on ecosystem integrity –Metrics: Estimated total river fragmentation, estimated total flow disruption, estimated total density of dams 6
  7. 7. Ecosystem indicators (continued)  Fish threat –Metrics: Average annual catches of fish, estimated potential fish production, proportion of non- native fish species  Basin productivity –Metrics: water storage capacity, flow variability, and regulation, filtering of water capacity, absorbing and buffering capacities 7
  8. 8. Understanding ecosystem indicatorsfor the nexus• Water for food – Agricultural water stress (cropland+irrigation vs. availability)• Water for energy – Disconnectivity-Wetland loss and river fragmentation, flow disruption by reservoirs• Water for nature – Environmental water stress (ecological requirement vs. availability)• Water for people – Human water stress (population vs. availability)8
  9. 9. Healthy vs. Degraded approach9
  10. 10. 10

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