北京市房山区土壤重金属元素分布、富集特征及来源解析

韩冰, 黄勇, 李欢, 安永龙

Distributions, enrichment characteristics, and sources of heavy metals in soils in Fangshan District, Beijing

HAN Bing, HUANG Yong, LI Huan, AN Yong-Long

图3 研究区土壤重金属元素中位值与北京市及海河流域土壤重金属元素中位值对比

Fig.3 Comparison of mean values of heavy metal elements in soil of the study area with that in Beijing and Haihe River Basin