云南省盐津县峨眉山玄武岩区土壤铜元素地球化学特征及环境风险评价  

Study on geochemical characteristics and environmental risk assessment of copper in soil upon Emeishan basalt in Yanjin,Yunnan province,China

作　　者：宋云涛[1,2,3] 吕许朋 杨志斌 王成文[1,2,3] 韩伟 王乔林[1,2,3] 杨帆 SONG Yuntao;LV Xupeng;YANG Zhibin;WANG Chengwen;HAN Wei;WANG Qiaolin;YANG Fan(Institute of Geophysical & Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China;Research Center of Geochemical Survey and Assessment on Land Quality,China Geological Survey, Langfang 065000, China;Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone,Chinese Academy of Geological Sciences, Langfang 065000, China;Yunnan Institute of Geological Survey, Kunming 650000,China)

机构地区：[1]中国地质科学院地球物理地球化学勘查研究所,廊坊065000 [2]中国地质调查局土地质量地球化学调查评价研究中心,廊坊065000 [3]中国地质科学院地球表层碳-汞地球化学循环重点实验室,廊坊065000 [4]云南省地质调查院,昆明650000

出　　处：《物探化探计算技术》2021年第4期501-512,共12页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：中国地质调查局项目(DD20190522)。

摘　　要：针对峨眉山玄武岩区土壤常见铜元素异常,利用云南省盐津县1:50000土地质量地球化学评价资料,开展铜元素地球化学特征研究及环境风险评价。结果显示,研究区表层土壤铜元素异常带与峨眉山玄武岩组空间位置十分吻合,虽然土地质量地球化学评价的土壤铜环境等级为中度污染和重度污染,但区内灌溉水水质清洁,水稻、玉米和茶叶等农作物样品中铜元素含量均不超标。研究区表层土壤铜元素分布主要受成土母质和地质背景影响,暂无环境风险。Based on the copper anomaly upon Emeishan basalt,the geochemical characteristics and environmental risk assessment of copper elements in surface soil were carried out by using 1:50000 land-quality geochemistry evaluation data from Yanjin,Yunnan province.The results show that the spatial distribution of the zone of copper anomaly are consistent with locations of the Emeishan basalt.The land-quality geochemistry evaluation results show that the geochemical environmental levels of copper in surface soil are moderate and severe pollution.However,the irrigation water in the study area is clean.Further more,the concentration of copper in rice,crop and tea samples is far below the threshold in National standard.Therefore,the distribution of copper in surface soil in the study area is mainly affected by the soil parent material and geological background,and has no environmental risk now.

关 键 词：峨眉山玄武岩 土地质量地球化学评价 成土母质 环境风险评价 

分 类 号：P632[天文地球—地质矿产勘探]