US 1:10 million Basic Geographic Background Dataset (2012-2015)

a. Data content (data file/table name, including observation index content) The 1:10 million basic geographic background dataset for the United States (2012-2015) includes basic geographic background data on water systems, roads, administrative divisions, and land use within the United States. b. Construction purpose Understand the basic geographical situation throughout the United States and provide data services for scientific research on global terrestrial surface ecosystems. c. Service object It can widely serve managers, producers, and scientific researchers in related disciplines such as geography, cartography, hydrology and water conservancy, agriculture, soil science, agricultural ecology, etc. in agriculture, forestry, animal husbandry, etc. d. Time range of data 2012-2015 e. The spatial range of data Throughout the United States