The document discusses trends in wetland loss and implications for management. Over 5,137 acres of wetlands have been lost due to drying of the landscape. An additional 8,375 acres, or 52% of wetlands, have lost hydroperiods classified as temporarily flooded or saturated. This drying is causing organic soils to decompose, invasive species to spread, and upland species to colonize wetland areas. The loss of hydrology and wetland functions implies a probable permanent loss of 52% of wetland stock and potential removal from 60-80% of the county due to land subsidence and hydrophobic soils. Managers can expect more delineation challenges and fewer areas meeting jurisdictional wetland definitions going forward.

1. Wetlands

2. Review Of Current Chapter Focus on wetland landscape Hydrogeomorphic classes and profile General ecological function and significance Addresses the benefits & values of wetlands Provides general model for determining value

3. Trend Analysis General drying out of landscape 5,137 acres Loss of wetlands with hydroperiods: Temporarily flooded (A) Saturated (B) 8,375 acres (52%)

4. Trends: Organic soils drying out Increased occurrence of invasive species Increased colonization by upland species

5. Implications Probable loss of 52% of wetland stock Organic soils decomposing & becoming hydrophobic – permanent loss Land subsidence Potential removal from 60-80% county

6. Expectations for Management More involved delineations More areas that do not meet jurisdictional definition

7. Questions? Thank You Coon Creek Watershed District