中国稻田土壤有机质时空变化及其驱动因素
李冬初1,2,黄晶2,马常宝3,薛彦东3,高菊生2,王伯仁2,张杨珠1(),柳开楼2,4,韩天富2,张会民2()
Spatio-Temporal Variations of Soil Organic Matter in Paddy Soil and Its Driving Factors in China
LI DongChu1,2,HUANG Jing2,MA ChangBao3,XUE YanDong3,GAO JuSheng2,WANG BoRen2,ZHANG YangZhu1(),LIU KaiLou2,4,HAN TianFu2,ZHANG HuiMin2()

图6. 稻田土壤有机质与土壤容重(a)及耕层深度(b)的关系

Fig. 6. Correlations between bulk density and SOM content (a), SOM and plough depth (b) content for the plough layers of the paddy soil