2026-10-14T15:07:01Z https://www.scidb.cn/oai

10.57760/sciencedb.IGA.00798 2023-12-05T16:00:56Z

2023-12-05 Jilin Province 1:100000 Black Soil Resource Distribution Dataset (1980) doi:10.57760/sciencedb.iga.00798 en a. Data content (data file/table name, including observation index content) Data file name: Jilin Province 1:100000 Black Soil Resource Distribution Dataset (1980) Main content: Jilin Province 1:1 Million Black Soil Resource Distribution Dataset (1980) - Data Entity. shp b. Construction purpose This dataset mainly provides data support services for research on agricultural production and land fertility evaluation. c. Service recipients Students and researchers engaged in agricultural ecology and soil science research. d. Time range of data The data collection was completed in 1980. e. The spatial range and projection method of data Space scope: Jilin Province Jilin Province; Black Soil Resource Distributi; 1980 杜书立 PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset Science Data Bank