Estimates of agricultural-chemical use in counties in the conterminous United States as reported in the 1987 Census of Agriculture
收藏U.S. Geological Survey2023-01-01 更新2026-04-23 收录
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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 coverage contains estimates of agricultural-chemical use in counties in the conterminous United States as reported in the 1987 Census of Agriculture (U.S. Department of Commerce, 1989a). Agricultural-chemical use data are reported as either acres on which used, tons, or as a percentage of county area. Agricultural-chemical use estimates were generated from surveys of all farms where $1,000 or more of agricultural products were sold, or normally [...]
提供机构：
U.S. Geological Survey
创建时间：
2023-01-01
