2026-10-12T18:18:54Z https://www.scidb.cn/oai

10.57760/sciencedb.IGA.00716 2023-11-03T16:28:14Z

2023-11-03 US 1:10 million Basic Geographic Background Dataset (2012-2015) doi:10.57760/sciencedb.iga.00716 en 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 the United States; Basic Geographic Background; 2012-2015 杜书立 PUBLIC https://creativecommons.org/publicdomain/zero/1.0/ dataset Science Data Bank