海河平原北部地区土壤地球化学基准值与环境背景值  

Soil geochemical baseline and environmental background values in northern Haihe plain,China

作　　者：曹峰[1] 李瑞敏[1] 王轶[1] 马忠社 郭海全 赵更新 曹淑萍[4] 李文伟[5] 

机构地区：[1]中国地质环境监测院,北京100081 [2]河北省地质调查院,河北石家庄050081 [3]中国地质调查局天津地质调查中心,天津300170 [4]天津市地质调查研究院,天津300191 [5]北京市地质勘察技术院,北京102206

出　　处：《地质通报》2010年第8期1215-1219,共5页Geological Bulletin of China

基　　金：中国地质调查局<海河流域典型地区区域生态地球化学评价>项目(编号:GZTR20060208)资助

摘　　要：以北京市、天津市、河北省多目标区域地球化学调查(1:25万)取得的数据为基础,遵循地球化学基准值与环境背景值的概念,根据不同的沉积条件将研究区(即海河平原北部地区)划分为3个统计单元,运用标准化方法,即对土壤表层数据反复剔除异常数据后,通过其他元素与惰性元素Ti的相关关系分别计算得出各指标土壤的基准值;通过对土壤深层数据反复剔除异常数据后,获得了34项指标的平均值、标准离差和变异系数,并以此表征背景值。以上研究为区域土壤环境质量评价与监测预警提供了科学依据。Based on the data obtained from the multipurpose regional geochemical survey（1：250000） in the Beijing,Tianjin and Heibei Province,and the basic conception of geochemical baseline and environmental background values,the study area（Northern Haihe plain） was divided into three statistical units in light of the different depositional conditions.By using the method of standardization,that is,after repeatedly crossing out the surface soil anomalous data,geochemical baselines of various indicators were obtained through the correlation between other elements and inert element Ti,and after repeatedly crossing out the deep soil anomalous data,mean values,standard deviations and variation coefficients of 34 indicators were obtained,and thus characterized the background values.The above study may be cited as major scientific basis for regional soil environmental quality evaluation and monitoring.

关 键 词：海河平原北部 地球化学基准值 土壤环境背景值 

分 类 号：S15[农业科学—土壤学] P595[农业科学—农业基础科学]