云南沘江流域农田土壤重金属PbZnCdAs的地球化学特征.PDF

2012 5 May 2012 33 3 : 331-340 Acta Geoscientica Sinica Vol.33 No.3: 331-340 www.地球学报.com 沘PbZnCdAs , , , , 650091 摘 要: —— 沘, , PbZnCdAs , : (1)沘 , ( Ⅱ), PbZnCdAs 66.667%91.667% 100%16.667%, Cd Zn Pb As; (2)Pb Cd , , ﹥ ﹥ ﹥ , , Zn As , , ; Pb Cd (), , , ; (3) PbZnCd As , , , CdPbZn , As S 关键词: ; ; ; ; 沘 G 中图分类号: X131.3; P595 文献标志码: A doi : 10.3975/cagsb.2012.03.07 A The Geochemical Characteristics of Heavy Metals in Agricultural Soils of the Bijiang Watershed in Yunnan Province C ZHAO Xiao-qing, LI Li-jiao, YANG Hong-hui, TAN Shu-cheng School of Resource Environment and Earth Science, Yunnan University, Kunming, Yunnan 650091 Abstract: The Lanping lead-zinc ore district has the largest lead-zinc reserves in China’s lead-zinc deposits. The upstream of the Bijiang River originates from the Lanping lead-zinc ore district. Therefore, the Bijiang River has been affected by mining activities of the Lanping lead-zinc ore district, and has become a river typically polluted by heavy metals. With the agricultural soils