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WETLAND LOSS MEASURED BY NATIONAL WETLANDS INVENTORY 1780-1980S (IWI VERSION 1.2) (IWI) VERSION 1.0
Description:
Wetlands have not always been recognized as important to aquatic system health. In times past, they have been intentionally drained and filled as land was developed, and as a result, loss of wetlands has been substantial. The result has been loss of habitat and loss of watershed capacity for flood retention. This information shows the extent of the loss of this resource since Colonial times, and is a measure of the long-standing resource reduction that threatens streams and rivers today. The National Wetlands Inventory plans, directs, coordinates, and monitors the gathering, analysis, dissemination, and evaluation of information relating to the location, quantity, and ecological importance of the Nations wetlands. Description of the Data Layer: The data used in the National Wetlands Inventory (NWI), 1780s-1980s) provides historical data from the U.S. Fish and Wildlife Service on wetland acreage on federal and non-federal lands. (State level) (IWI version 1.2) (IWI) Version 1.0