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Municipal Wetland Mapping by Mike Gracz

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Community-Based Watershed Management Forum, March 2012, Juneau Alaska. Southeast Alaska Watershed Coalition

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Municipal Wetland Mapping by Mike Gracz

  1. 1. Wetlands and Watershed Planning Mike Gracz Ecologist Kenai Watershed Forum Ph.D. Candidate University of Minnesota 235-2218 mike@kenaiwatershed.org cookinletwetlands.info
  2. 2. Overview• General Background• History – Wetland Mapping to Predict Function• Applications – Public Awareness: Avoidance of Fill Activity – Habitat Analyses – Wetland Assessment in Homer• Lessons Learned
  3. 3. Watershed Planning Strategy• Wetlands: • Important Water Resource • Valuable Ecosystem Services • Permitting Process
  4. 4. Alaska Watershed Planning Differences• Wetlands: • High Cover • Relatively Pristine • Peatlands
  5. 5. Overview• General Background• History – Wetland Mapping to Predict Function• Applications – Public Awareness: Avoidance of Fill Activity – Habitat Analyses – Homer Wetland Assessment• Lessons Learned
  6. 6. Map-Based Watershed-Level Management Tool
  7. 7. NWI: Registration errors
  8. 8. NWI: Incomplete
  9. 9. NWI: Not predictiveof wetland function
  10. 10. A New ClassificationPredictive of Function
  11. 11. A New ClassificationPredictive of Function Locally Relevant
  12. 12. A New ClassificationPredictive of Function Locally Relevant Wetland Management Tool
  13. 13. A New ClassificationPredictive of Function Locally Relevant Wetland Management ToolWatershed-level Assessments
  14. 14. Hydrology + Geomorphology = Wetland Function H+G∝W “First Principles” of wetland function (Brinson 1993, 1995)
  15. 15. ResultsCook Inlet Classification > NWI > (National Wetland Inventory) LLWW (Tiner 2003, 2011 version of HGM)
  16. 16. Overview• General Background• History – Wetland Mapping to Predict Function• Applications – Public Awareness: Avoidance of Fill Activity – Habitat Analyses – Homer Wetland Assessment• Lessons Learned
  17. 17. Wetland Management Strategies • Avoid • Minimize • Mitigate
  18. 18. Overview• General Background• History – Wetland Mapping to Predict Function• Applications – Public Awareness: Avoidance of Fill Activity – Habitat Analyses – Homer Wetland Assessment• Lessons Learned
  19. 19. Coho Salmon Analysis Kenai R.Kasilof R. Anadromous Waters Catalog (AWC)
  20. 20. Coho Salmon Analysis New streams connected to AWC
  21. 21. Coho Salmon Analysis Connected Open-Water Wetlands
  22. 22. Coho Salmon Analysis Slikok Creek Coal Creek All Adjacent Wetlands
  23. 23. Coho Salmon Analysis All Wetlands
  24. 24. Sandhill Crane Nesting
  25. 25. Caribou Summer & Calving
  26. 26. Overview• General Background• History – Wetland Mapping to Predict Function• Applications – Public Awareness: Avoidance of Fill Activity – Habitat Analyses – Homer Wetland Assessment• Lessons Learned
  27. 27. Homer WetlandManagement Project • Mapping • Assessment • General Permit? • Local Ordinance?
  28. 28. Homer Wetland Management Strategies
  29. 29. Homer Wetland Management Strategies
  30. 30. Overview• General Background• History – Wetland Mapping to Predict Function• Applications – Public Awareness: Avoidance of Fill Activity – Habitat Analyses – Homer Wetland Assessment• Lessons Learned
  31. 31. Alaska is Different• High wetland cover• Peatlands• Functioning in “reference standard condition”
  32. 32. Alaska is Different• High wetland cover• Peatlands• Functioning in “reference standard condition”• Maintenance rather than restoration of lost function
  33. 33. Alaska is Different• High wetland cover• Peatlands• Functioning in “reference standard condition”• Maintenance rather than restoration of lost function• Assessment not on disturbance gradient
  34. 34. Alaska is Different• High wetland cover• Peatlands• Functioning in “reference standard condition”• Maintenance rather than restoration of lost function• Assessment not on disturbance gradient • Assessment for mitigation = biggest challenge
  35. 35. Alaska is Different• Maintenance rather than restoration• Assessment not on disturbance gradient •Assessment for mitigation = biggest challengeMaybe not so different:• Local control requires commitment• Unexpected outcomes most effective
  36. 36. Cook Inlet Wetland Management Tool Special Thanks: Matt LaCroix Paul Glaser Field Crew: Technical Support: Phil North Karyn Noyes Chris Clough Funding: Robert Ruffner Mike MacMillian Bill HollowayUS Environmental Protection Agency Bill Rice Matt LaCroix Dan Regan US Army Corps of Engineers Mary Price Doug Van Patten Laura Shelton Claudette MacDonald Logan Sander Doug Van Patten US Fish and Wildlife Service David Wigglesworth Katy Rice Mike Mungoven Kenai River Center Karyn Noyes Tessa Hovland Stephanie Kobylarz University of Minnesota Jerry Tande Gayle Martin Karyn Noyes Doug Van Patten Mary Moffett John DeLapp Geoff Coble Lisa Rabbe Don Siegel Mike Gracz Valerie Ringold Birgit Hagedorn Richard Reger Susan Kleinmike@kenaiwatershed.org Andy Reeve Julie Engebretsen cookinletwetlands.info Frankie Barker Monica McTeague 907-235-2218 Mary Moffett

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