2026-10-13T23:09:03Z https://www.scidb.cn/oai

10.57760/sciencedb.IGA.00904 2023-12-22T15:58:49Z

2023-12-22 Dataset of Cultivated Land Area in Northeast China (1183-1840 AD) doi:10.57760/sciencedb.iga.00904 en a. Data content (data file/table name, including observation index content) The dataset of cultivated land area in Northeast China (1183-1840 AD) includes elements such as cultivated land area, land reclamation area, flag land area, and civilian land area from 1183 to 1840 AD. b. Construction purpose Mainly used for research on agricultural production and dynamic changes in agricultural cultivation processes. c. Service recipients Students and researchers engaged in related research, as well as management and teaching personnel. d. Time range of data 1183-1840 AD e. The spatial range of data Northeast region Northeast China; Cultivated Land Area; 1183-1840 AD 宋春雨 PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset Science Data Bank