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The Truth about Ecological Revitalization - Case Studies and Tools to Improve your Cleanups

The Truth about Ecological Revitalization - Case Studies and Tools to Improve your Cleanups. Soil Health. Sally Brown, University of Washington. A Guide to Soil Health (Value of soil ecosystem services). Insert bullets. Sally Brown University of Washington Based on Costanza et al, 1997.

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The Truth about Ecological Revitalization - Case Studies and Tools to Improve your Cleanups

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  1. The Truth about Ecological Revitalization - Case Studies and Tools to Improve your Cleanups Soil Health Sally Brown, University of Washington

  2. A Guide to Soil Health(Value of soil ecosystem services) • Insert bullets Sally Brown University of Washington Based on Costanza et al, 1997

  3. Soil - The living skin of the earthhttp://geosci.uchicago.edu/solids/images/earth_interior.jpg

  4. Water in the World • The earth is 71% water • (361 million km2)

  5. Soil - arable land41.4 million km2

  6. Soils are the foundation of ecosystem services • Net worth of these services set at $33 trillion • 83% > than the gross world product • (Costanza et al., 1997)

  7. What are these services? • Gas regulation • Regulation of atmospheric chemical composition including CO2/O2 balance 6 CO2 + 12 H2O → C6H12O6 + 6 O2 + 6 H2O

  8. What plants need • Physical support • Air • Water • Nutrients: C.B.HOPKiNSCaFe,Co ClosedMondayMorning andNight See You(Cu)Zoon(Zn), theMg

  9. 2. Climate regulation including GHG regulation 760x106 Mg 560x106 Mg 38,000x106 Mg 2,500x106 Mg A mean residence time for carbon in soils is 22-32 years

  10. Global carbon cycles/pools 158x106 Mg released from 1850 - 1998 560x106 Mg 76x106 Mg every year 760x106 Mg 266x106 Mg > pre industrial 2,500x106 Mg

  11. 3. Disturbance regulation • Storm protection, flood control, drought recovery…mainly controlled by vegetation structure

  12. Early grown of corn on control (left) and compost amended (right) Plots on Woodstown silt loam soil (Epstein and Chaney, 1974).

  13. Strongly wilted corn on control plot in experiment with biosolids Compost application to Woodstown silt loam (Epstein and Chaney)

  14. Corn on biosolids compost treated soil on same day as control plot corn was strongly wilted (Epstein and Chaney).

  15. 4. Water regulation- regulation of hydrological flows

  16. 5. Water supply- storage and retention of water

  17. 6. Erosion control and sediment retention NRCS www.skyways.org/orgs/fordco/dustbowl/

  18. 7. Nutrient cycling – storage, cycling, acquisition of nutrients

  19. 9. Waste treatment – recovery of nutrients, pollution control and detoxification

  20. 10 & 11. Pollination and biological control – provisioning of pollinators and reduction of herbivory by top predators

  21. 12. Refugia – habitat for resident and transient populations

  22. 13. Food production – portion of primary production extractable as food

  23. Yield – pictures tell the story

  24. Not the only consumers

  25. 14. Raw materials – the production of lumber, fuel, fodder

  26. 15. Genetic resources – source of unique biological materials and products

  27. 16. Recreation – providing opportunities for eco-tourism, fishing…

  28. 17. Cultural – aesthetic, educational…

  29. To conclude… • Soil resources are an integral component of ecosystem function • Healthy soils – here shown as restored soils are able to provide these ecosystem services much more effectively than degraded soils

  30. My 5 minutes… http://media.nap.edu/podcasts/nax74dirtonsoil.mp3

  31. Sally Brown University of Washington Phone: (206) 616-1299 Email: slb@u.washington.edu

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