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Converted Wetland
A converted wetland is one that has been drainage, drained, Dredging, dredged, filled, leveled, or otherwise altered for the production of an crops, agricultural commodity. The definition is part of The Highly Erodible Land Conservation and Wetland Conservation Compliance provisions (Swampbuster) introduced in the 1985 Farm Bill (also known as Food Security Act of 1985, The Food Security Act of 1985). The provisions aim to reduce soil loss on erosion-prone lands and to protect wetlands for the multiple benefits they provide. Description Under the swampbuster program, converted wetlands are wetlands that were drained or altered to improve agricultural production after December 23, 1985, the date swampbuster was enacted. On lands with this designation, no drainage maintenance and no additional drainage are allowed. Lands converted before December 23, 1985, are called ''prior converted wetlands'', and alterations to these lands are subject to less stringent requirements. Under swam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drainage
Drainage is the natural or artificial removal of a surface's water and sub-surface water from an area with excess of water. The internal drainage of most agricultural soils is good enough to prevent severe waterlogging (anaerobic conditions that harm root growth), but many soils need artificial drainage to improve production or to manage water supplies. History Early history The Indus Valley civilization had sewerage and drainage systems. All houses in the major cities of Harappa and Mohenjo-daro had access to water and drainage facilities. Waste water was directed to covered gravity sewers, which lined the major streets. 18th and 19th century The invention of hollow-pipe drainage is credited to Sir Hugh Dalrymple, who died in 1753. Current practices Geotextiles New storm water drainage systems incorporate geotextile filters that retain and prevent fine grains of soil from passing into and clogging the drain. Geotextiles are synthetic textile fabrics specially m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
