Record Display for the EPA National Library Catalog


Main Title Delineating Agriculture in the High Rock Lake Watershed.
Author Osmond, D. L. ; Neas, K.
CORP Author North Carolina Dept. of Environment and Natural Resources, Raleigh.; North Carolina State Univ., Raleigh. Dept. of Soil Science.; National Agricultural Statistics Service, Washington, DC.; Environmental Protection Agency, Washington, DC.
Year Published 2015
Stock Number PB2015-103960
Additional Subjects Agriculture ; Agronomics ; Area sampling ; Acre development ; Wildlife ; Data collection ; County size ; Field size ; Current crops ; Fertilizer applications ; Tillage type ; Cover crop use ; Buffers ; High Rock Lake Watershed
Library Call Number Additional Info Location Last
NTIS  PB2015-103960 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 80p
Under the proposed High Rock Lake Rules, the Basin Oversight Committee (BOC) is tasked with submitting agricultural information on a yearly basis. To obtain a better estimate of agricultural practices, this onetime statistically valid area sampling frame was applied to agricultural fields in the High Rock Lake Watershed in order to collect an agricultural baseline of cropping systems, soil types and currently used best management practices, livestock types and numbers, and producer information. Using a valid statistical sampling technique, random census blocks were selected for High Rock Lake Watershed. The number of map units selected per county was based on how much of the county was within the watershed boundary, as well as the amount of agriculture and finally, the financial constraints of the project. All or portions of 12 counties were sampled: Alexander, Caldwell, Davidson, Davie, Forsyth, Iredell, Rowan, Stokes, Surry, Watauga, Wilkes, and Yadkin. We collected information on a wide variety of agricultural characteristics, including number of acres in development, wildlife, and CREP/CRP. Other data collected consisted of county, field size (ac), current crop, fertilizer applications (amount and type), tillage type, cover crop use, presence of different types of buffers, buffer widths, acreage affected by the buffers, field slope, receiving slope length, and presence of other BMPs (sediment basin, pond, or tile drainage). Slope length was also determined in order to calculate soil loss.