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What is a Wetland?

What is a Wetland?. Any place that is regularly flooded with fresh, brackish, or salty water. Water Not always wet Water levels change Permanent, seasonal, or temporary. 25ft. Completely dry. Ephemeral pond. Flooded seasonally. Flooded by heavy rains or tides. Shallow water

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What is a Wetland?

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  1. What is a Wetland? Any place that is regularly flooded with fresh, brackish, or salty water

  2. Water • Not always wet • Water levels change • Permanent, seasonal, or temporary

  3. 25ft Completely dry Ephemeral pond

  4. Flooded seasonally

  5. Flooded by heavy rains or tides

  6. Shallow water • Maximum depth (2 to 6 metres) • Light penetrates • Highly productive • Often little or no water movement • Ramsar definition includes rivers, lakes, and coral reefs

  7. Wetlands have hydric soils: • Water fills the air space • Oxygen-poor (anaerobic or anoxic) • Gray in colour • Unique aroma (“swamp gas”) • Soft and unstable

  8. “Water-loving” plants (hydrophytes)

  9. Aerenchyma Cross section of the stem of an aquatic plant

  10. Fresh • Brackish • Salty • “Super-salty” (hypersaline)

  11. Hydrology

  12. Wetlands have: • Water for at least part of the year • Water-logged (hydric) soils • Specially-adapted plants (hydrophytes)

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