39 articles
Swale (landform)
Swale (landform): a shallow open depression lacking a defined channel; also called slack. Covers coastal dune swales between beach ridges, prairie swales, and designed vegetated stormwater channels, from Old Norse svalr.
Wetland classification
Wetland classification systems group wetlands by hydrology, geomorphology, vegetation, and soils. Key frameworks: the U.S. Cowardin system (five systems, 56 classes), the Ramsar 42-type typology, and Brinson's HGM functional classification.
Wetland conservation in the United States
Wetland conservation in the United States covers Clean Water Act Section 404 regulation, mitigation banking, no-net-loss policy, and restoration programs protecting about 110 million acres of wetlands, reshaped by the 2023 Sackett v. EPA decision.
Wetland delineation
Wetland delineation is the field procedure of drawing the boundary between wetland and non-wetland areas on a parcel of land, usually for Clean Water Act Section 404 permitting.
Wetland indicator status
Wetland indicator status is a rating of how likely a plant species occurs in wetlands, assigned on the U.S. Army Corps' National Wetland Plant List.
Wetland Protection Law of China
The Wetland Protection Law of China (中华人民共和国湿地保护法) is China's first dedicated wetland protection statute, approved in December 2021 and effective 1 June 2022, with per-square-meter penalties for wetland destruction.
Wetland restoration
Wetland restoration returns a degraded or formerly drained wetland to its pre-disturbance condition by re-establishing natural hydrology, substrate, and vegetation; full recovery of plant communities and nutrient cycling can take decades.
Wetlands (Conservation and Management) Rules (India)
The Wetlands (Conservation and Management) Rules are India's central wetland regulations under the Environment (Protection) Act, 1986, first issued in 2010 and replaced in 2017 by state-led, wise-use management.
William J. Mitsch
William J. Mitsch (1947–2025), American wetland ecologist and ecological engineer; founder of the Olentangy River Wetland Research Park, journal Ecological Engineering, and the Wetlands textbook; 2004 Stockholm Water Prize co-laureate.