Major Land Resource Areas (MLRA)
收藏DataCite Commons2023-09-28 更新2026-05-07 收录
下载链接：
https://www.sciencebase.gov/catalog/item/631405c4d34e36012efa316b
下载链接
链接失效反馈官方服务：
资源简介：
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 is a polygon coverage of the Land Resource Regions and Major Land Resource Areas of the conterminous United States. Land resource regions are geographic areas that are characterized by a particular pattern of soils, climate, water resources and land uses. (USDA, Soil Conservation Service, 1981). Major land resource areas are subregions of the land resource regions and comprise smaller homogeneous areas. The scale of this coverage is 1:2,000,000. [...]
提供机构：
U.S. Geological Survey
创建时间：
2023-09-28
