Inland wetland

Environmental conditions

The duration and depth of flooding determine which areas stay wet.

Distribution and scope

The term covers several inland wetland types; a local profile needs a defined basin and water regime.

Structure

Open water, emergent vegetation, shores and saturated soils form a mosaic.

Ecological processes

Flooding, sedimentation and decomposition change with water level.

Seasonal changes

Water level and flood duration change between seasons and years. A temporarily dry area may still be wetland; interpretation needs its water regime, not one visit.

Threats

Drainage, abstraction, pollution and catchment alteration change the supporting water regime. Invasive species and climate change may add site-specific pressure.

Conservation

Maintain water quantity, quality and catchment connections. Where degraded, restore hydrology and monitor vegetation and water before considering species introductions.

Responsible observation

Record open water, emergent plants, exposed mud and flood marks from paths. Avoid soft banks and breeding areas.