呼和浩特市淡栗褐土表层重金属的基准值研究  

The Reference Values of Heavy Metals in Light Cinnamon Topsoil in Hohhot

作　　者：石俊仙[1] 何江[2] 王喜宽 

机构地区：[1]内蒙古大学化学化工学院,内蒙古呼和浩特010021 [2]内蒙古大学生命科学学院,内蒙古呼和浩特010021 [3]内蒙古地质调查院,内蒙古呼和浩特010020

出　　处：《农业环境科学学报》2007年第6期2057-2061,共5页Journal of Agro-Environment Science

基　　金：项目(200414200005)

摘　　要：针对目前土壤环境质量标准存在的不足,通过现场采样及室内分析,主要采用相对累积频率分析方法,确定了呼和浩特市淡栗褐土表层重金属的地球化学基准值。结果表明,Cu、Zn、Cd、Pb的基准值分别是:14.19、45.47、0.0844、17.42mg·kg-1。本研究不仅可以为制订内蒙古自治区地方土壤环境质量标准提供基础资料,同时也可以为土壤评价、政府决策和精细农业的发展提供理论支撑。The baseline of the four heavy metals and the geochemical indicators in the studied area were studied. Since the defects in soil environment quality standard in China, this research focuses on determining the criteria of the heavy metals such as Cu, Zn, Cd and Pb in the subclass of light cinnamon topsoil （0-20 cm） across 1 136 km^2 of Hohhot. All samples were collected uniformly in large area based on GIS. With the use of relative cumulative frequency curve, median and arithmetical mean method, the criteria of the four heavy metals in light cinnamon topsoil was determined by environmental geocherqical method, being 14.19, 45.47, 0.084 4 and 17.42 mg·kg^-1 for Cu, Zn, Cd and Pb respectively. These provided the fundamental material for formulating the local soil environment quality standard of Inner Mongolia and for the third General Survey of Soil in China, and also gave theoretical support for the soil evaluation, policy-decision and fine agriculture.

关 键 词：呼和浩特 基准值 重金属 淡栗褐土 

分 类 号：X820.1[环境科学与工程—环境工程]