2026-10-12T11:10:49Z https://www.scidb.cn/oai

10.57760/sciencedb.IGA.00923 2023-12-26T15:57:01Z

2023-12-26 Dataset of Crop Sowing Area in Northeast China (1840-1949) doi:10.57760/sciencedb.iga.00923 en a. Data content (data file/table name, including observation index content) The dataset of crop planting area in Northeast China (1840-1949) includes elements such as the planting area and cultivated area of the main crops in Northeast China from 1840-1949. 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; Crop Sowing Area; 1840-1949 宋春雨 PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset Science Data Bank