2026-10-12T18:29:54Z https://www.scidb.cn/oai

10.57760/sciencedb.IGA.00594 2023-10-13T16:19:32Z

2023-10-13 1:200000 Soil Organic Matter Distribution Dataset in Heilongjiang Province (1990) doi:10.57760/sciencedb.iga.00594 en a. Data content (data file/table name, including observation index content) Data File Name: Heilongjiang Province 1:200000 Soil Organic Matter Distribution Dataset (1990) b. Construction purpose Provide data support for scientific research projects related to soil quality evolution and soil fertility improvement. c. Service object This database is suitable for scientific and technological workers engaged in research on terrestrial ecosystems, soil fertility changes, land use, and other related fields, as well as for government decision-making departments. d. Time range of data The data was completed in 1990. e. The spatial range and projection method of data Space scope: Heilongjiang Province Heilongjiang Province; Soil Organic Matter Distributi; 1990 杜书立 PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset Science Data Bank