张掖盆地1990s表土层深部土壤重金属分布特征及其来源分析
何甘地, 何进忠, 牛洪斌, 张忠平

Distribution and origin of heavy metals in deep topsoil of the Zhangye Basin in the 1990s
HE Gan-Di, HE Jin-Zhong, NIU Hong-Bing, ZHANG Zhong-Ping
图1 张掖盆地地质背景(a)、1990s表土层深部土壤样品采样位置(b)、重金属异常分布(c)
Fig.1 The geological background of Zhanye Basin (a),and its location of deep topsoil samples (b) and heavy metal anomalies(c) in 1990s