2026-10-14T06:57:33Z https://www.scidb.cn/oai

10.57760/sciencedb.IGA.00906 2023-12-22T15:58:32Z

2023-12-22 Dataset of Cultivated Land Area in Northeast China (1840-1949) doi:10.57760/sciencedb.iga.00906 en a. Data content (data file/table name, including observation index content) The dataset of cultivated land area in Northeast China (1840-1949) includes elements such as cultivated land area, wasteland area, paddy field area, and upgraded land area. 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 1840-1949 e. The spatial range of data Northeast region Northeast China; Cultivated Land Area; 1840-1949 宋春雨 PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset Science Data Bank