Attributes for NHDPlus Version 2.1 Flowlines for the Conterminous United States: Percent of Agriculture Land Subject to Select National Resource Inventory Conservation Practices, 2000-2012

This metadata record describes 24 tabular data sets that estimate the percent of agricultural land that may be subject to select conservation practices for each year during the period 2000-2012 compiled for two spatial components of the NHDPlus version 2.1 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. Reach catchment information characterizes data at the local scale. Reach catchments accumulated upstream through the river network characterizes cumulative upstream conditions. Network-accumulated values are...

Tags: Alley Cropping, Bedding, Conservation practice, Conterminous United States, Contour Buffer Strips, All tags... Contour Farming, Contour Orchard/Other Fruit Area, Cross Wind Trap Strips, Field Border, Filter Strip, Grassed Waterway, Hedgerow Planting, Herbaceous Wind Barriers, Hillside Ditch, NAWQA, NRI, Riparian Forest Buffer, Stripcroppings, Surface Drainage, Field Ditch, Terrace, Tree/Shrub Establishment, Water and Sediment Control Basin, Windbreak/Shelterbelt Establishment, Fewer tags

Vulnerability of shallow ground water and drinking-water wells to nitrate in the United States: Model of predicted nitrate concentration in shallow, recently recharged ground water -- Input data set for irrigation tailwater recovery (gwava-s_twre)

These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. This data set represents the area of National Resources Inventory irrigation system, tailwater recovery conservation practice, in square kilometers, in the conterminous United States. The data set was used as an input data layer for a national model to predict nitrate concentration in shallow ground water. Nolan and Hitt (2006) developed two national models to predict contamination of ground water by nonpoint sources of nitrate....

Tags: Conterminous United States, Ground water, Ground water contamination, Ground water pollution, Ground water susceptibility, All tags... Irrigation tailwater recovery, NAWQA, NRI, NSDI, National Land Cover Data, National Resources Inventory, National Water-Quality Assessment Program, Nitrate, Nitrate concentration, Nonlinear model, Nutrients, USGS Science Data Catalog (SDC), environment, geoscientificInformation, inlandWaters, inlandWaters, Fewer tags

Vulnerability of shallow ground water and drinking-water wells to nitrate in the United States: Model of predicted nitrate concentration in U.S. ground water used for drinking (simulation depth 50 meters) -- Input data set for irrigation tailwater recovery (gwava-dw_twre)

These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. This data set represents the area of National Resources Inventory irrigation system, tailwater recovery conservation practice, in square kilometers, in the conterminous United States. The data set was used as an input data layer for a national model to predict nitrate concentration in ground water used for drinking. Nolan and Hitt (2006) developed two national models to predict contamination of ground water by nonpoint sources of...

Tags: Conterminous United States, Drinking water, Ground water, Ground water contamination, Ground water pollution, All tags... Ground water susceptibility, Irrigation tailwater recovery, NAWQA, NRI, NSDI, National Land Cover Data, National Resources Inventory, National Water-Quality Assessment Program, Nitrate, Nitrate concentration, Nonlinear model, Nutrients, USGS Science Data Catalog (SDC), environment, geoscientificInformation, inlandWaters, inlandWaters, Fewer tags

Percent of Agriculture Land Subject to Select National Resource Inventory Conservation Practices, 2000-2012

This metadata record describes 26 30-meter raster data sets that estimate the percent of agricultural land that may be subject to select conservation practices for each year during the period 2000-2012. The data were derived from U.S. Department of Agriculture (USDA) National Resources Conservation Service (NRCS) National Resource Inventory (NRI). One set of rasters (denoted by the ICP prefix) represents an estimate of the percent of agricultural land potentially subject to Alley Cropping, Contour Buffer Strips, Contour Farming, Contour Orchard/Other Fruit Area, Cross Wind Trap Strips, Field Border, Filter Strip, Grassed Waterway, Hedgerow Planting, Herbaceous Wind Barriers, Irrigation System, Tailwater Recovery,...

Tags: Alley Cropping, Bedding, Conservation practice, Conterminous United States, Contour Buffer Strips, All tags... Contour Farming, Contour Orchard/Other Fruit Area, Cross Wind Trap Strips, Field Border, Filter Strip, Geography, Grassed Waterway, Hedgerow Planting, Herbaceous Wind Barriers, Hillside Ditch, Hydrology, NAWQA, NRI, Riparian Forest Buffer, Stripcroppings, Surface Drainage, Field Ditch, Terrace, Tree/Shrub Establishment, USGS Science Data Catalog (SDC), Water Quality, Water Resources, Water and Sediment Control Basin, Windbreak/Shelterbelt Establishment, Fewer tags

Vulnerability of shallow ground water and drinking-water wells to nitrate in the United States: Model of predicted nitrate concentration in U.S. ground water used for drinking (simulation depth 50 meters) -- Input data set for drainageditch (gwava-dw_ddit)

These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. This data set represents the area of National Resources Inventory surface drainage, field ditch conservation practice, in square kilometers, in the conterminous United States. The data set was used as an input data layer for a national model to predict nitrate concentration in ground water used for drinking. Nolan and Hitt (2006) developed two national models to predict contamination of ground water by nonpoint sources of nitrate....

Categories: pre-SM502.8; Tags: Conterminous United States, Drainage ditch, Drinking water, Ground water, Ground water contamination, All tags... Ground water pollution, Ground water susceptibility, NAWQA, NRI, NSDI, National Land Cover Data, National Resources Inventory, National Water-Quality Assessment Program, Nitrate, Nitrate concentration, Nonlinear model, Nutrients, USGS Science Data Catalog (SDC), environment, geoscientificInformation, inlandWaters, inlandWaters, Fewer tags

Vulnerability of shallow ground water and drinking-water wells to nitrate in the United States: Model of predicted nitrate concentration in shallow, recently recharged ground water -- Input data set for drainage ditch (gwava-s_ddit)

These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. This data set represents the area of National Resources Inventory surface drainage, field ditch conservation practice, in square kilometers, in the conterminous United States. The data set was used as an input data layer for a national model to predict nitrate concentration in shallow ground water. Nolan and Hitt (2006) developed two national models to predict contamination of ground water by nonpoint sources of nitrate. The nonlinear...

Categories: pre-SM502.8; Tags: Conterminous United States, Drainage ditch, Ground water, Ground water contamination, Ground water pollution, All tags... Ground water susceptibility, NAWQA, NRI, NSDI, National Land Cover Data, National Resources Inventory, National Water-Quality Assessment Program, Nitrate, Nitrate concentration, Nonlinear model, Nutrients, USGS Science Data Catalog (SDC), environment, geoscientificInformation, inlandWaters, inlandWaters, Fewer tags

Percent of Agriculture Land Subject to Select National Resource Inventory Conservation Practices, 1997-2012

This dataset contains 28 30-meter raster data sets that estimate the percent of agricultural land that may practice select conservation practices for the period 1997-2012. The data were derived from U.S. Department of Agriculture (USDA) National Resources Conservation Service (NRCS) National Resource Inventory (NRI) and represent annual periods with the exception of 1998 and 1999, which are absent. One set of rasters represents an estimate of the percent of agricultural land subject to Alley Cropping, Contour Buffer Strips, Contour Farming, Contour Orchard/Other Fruit Area, Cross Wind Trap Strips, Field Border, Filter Strip, Grassed Waterway, Hedgerow Planting, Herbaceous Wind Barriers, Irrigation System, Tailwater...

Tags: Alley Cropping, Bedding, Conservation practice, Conterminous United States, Contour Buffer Strips, All tags... Contour Farming, Contour Orchard/Other Fruit Area, Cross Wind Trap Strips, Field Border, Filter Strip, Grassed Waterway, Hedgerow Planting, Herbaceous Wind Barriers, Hillside Ditch, NAWQA, NRI, Riparian Forest Buffer, Stripcroppings, Surface Drainage, Field Ditch, Terrace, Tree/Shrub Establishment, Water and Sediment Control Basin, Windbreak/Shelterbelt Establishment, Fewer tags