Gravity Irrigation Sources on Agricultural Land in the Conterminous United States, 1992: National Resource Inventory Conservation Practice IT01

Description

This data set represents the estimated percentage of the 1-km grid cell that is covered by or subject to the agricultural conservation practice (CPIT01), Gravity Irrigation Source (GI) on agricultural land by county. Gravity Irrigation Source is described as irrigation "delivered to the farm and/or field by canals or pipelines open to the atmosphere; and, water is distributed by the force of gravity down the field by: 1) A surface irrigation system (border, basin, furrow, corrugation, wild flooding, etc.) or, 2) Sub- surface irrigation pipelines or ditches." (U.S. Department of Agriculture, 1995) This data set was created with geographic information systems (GIS) and database management tools. The acres on which GI's are applied were totaled at the county level in the tabular NRI database and then apportioned to a raster coverage of agricultural land within the county based on the Enhanced National Land Cover Dataset (NLCDe) 1-kilometer resolution land cover grids (Nakagaki, 2003). Federal land is not considered in this analysis because NRI does not record information on those lands.

Resources

Name Format Description Link
55 Landing page for access to the data https://doi.org/10.5066/P9ZWQDQ8
55 The metadata original format https://data.usgs.gov/datacatalog/metadata/USGS.709bfbc6-269d-450c-bb1c-4967fd334978.xml
55 Landing page for access to the data https://water.usgs.gov/lookup/getspatial?nri_it01
55 Landing page for access to the data https://doi.org/10.5066/P9ZWQDQ8

Tags

  • environment
  • national-resources-inventory
  • agricultural-practices
  • usgs-709bfbc6-269d-450c-bb1c-4967fd334978
  • geoscientificinformation
  • inlandwaters
  • gravity-irrigation

Topics

Categories