-- 一个面向农业研究与发展(ARD)的信息节点与网关(RING)的路径图

Agriculture, Crops - CULTIVATED_AREAS_USDA_IN: Cultivated Areas in Indiana in 2004 (United States Department of Agriculture, 1:100,000, Polygon Shapefile)

The United States Department of Agriculture (USDA), National Agricultural Statistics Service (NASS) area sampling frame is a delineation of all parcels of land for the purpose of later sampling the parcels.

The area frame is constructed by visually interpreting satellite imagery to divide a state into homogenous land use areas (strata) based on percent cultivated. The strata are typically defined as low, medium, or high percent cultivated, nonagricultural land, urban use, agri-urban, or water. The boundaries of the strata usually follow identifiable features such as roads, railroads, and waterways. The strata boundaries do not coincide with any political boundaries, with the exception of state boundaries.

通常设置
类型: 
Belongs to network: 
Geographic
Country where the service is managed: 
美 国
Networks
内容
Percentage of records about agriculture: 
100%
Currency: 
Current / updated
agINFRA The RING is part of the agINFRA project EC 7th framework program INFRA-2011-1.2.2 - Grant agr. no: 283770