北京市耕地表层土壤有机碳分布及其影响因素
孔祥斌, 胡莹洁, 李月, 段增强

Distribution and influencing factors of soil organic carbon of cultivated land topsoil in Beijing
KONG Xiangbin, HU Yingjie, LI Yue, DUAN Zengqiang
图2 北京市耕地土壤碳密度分布
Figure 2 Cultivated land soil carbon density distribution of Beijing