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Federal
Attributes for NHDPlus Catchments (Version 1.1) in the Conterminous United States: Artificial Drainage (1992) and Irrigation Types (1997)
Department of the Interior —
This tabular dataset represents the estimated area of artificial drainage for the year 1992 and irrigation types for the year 1997 compiled for every catchment of... -
Federal
Summary Descriptive Characteristics by Catchment Concerning Lidar-derived Ditches in Eastern North Carolina, 2014-2015
Department of the Interior —
Artificial drainage has major ecosystem impacts through the development of extensive ditch networks that reduce storage and induce large-scale vegetation changes.... -
Federal
Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: Select Conservation Practices (CPRAC) for 2012
Department of the Interior —
This metadata record describes 7 conservation practice based on information from the National Resource Conservation Service (NASS) (Michael Schwartz, USGS, written...