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… have therefore been lost in one century, primarily through drainage for agriculture and urban development and water … for conversion to alternative land use. By 1985, the drainage of available wetlands for intensive agriculture was … different activities can generate the same process. Drainage and excessive groundwater abstraction can both …

… and outside wetlands. Some types of human activity (e.g., drainage, pollution or urban encroachment) almost always … work directly against wise use (e.g., mandatory wetland drainage or financial and tax incentives for conversion)? b) … agriculture) or potentially harmful (e.g., wetland drainage, watershed deforestation). The compatibility of such …

… of human history, wetlands have remained in disrepute. Drainage and reclamation have always been considered … something to be confined by embankments or got rid of by drainage - especially where fertile plains were created for … bowls” of the Midwest made the perils of ill-considered drainage easier to appreciate. President Franklin D. …

… of wetland biodiversity include habitat change (such as drainage and infilling for agriculture or construction), …

… most threatened ecosystems, owing mainly to ongoing drainage, conversion, pollution, and over-exploitation of … settling ponds, oxidation basins, etc. 9 -- Canals and drainage channels, ditches. Zk(c) – Karst and other …