近40年黑龙江省两大平原土壤有机质时空变化规律

杨贺平, 赵小静, 孙江军

Spatiotemporal changes of soil organic matter in the Songnen and Sanjiang plains of Heilongjiang Province over 40 years

YANG He-Ping, ZHAO Xiao-Jing, SUN Jiang-Jun

图4 2020年黑龙江省两大平原表层土壤SOM空间分布

Fig.4 Spatial distribution of SOM in surface soil in the two great plains of Heilongjiang Province in 2020