地质与资源2019，Vol.28Issue(5)：470-476,7.
辽宁南部地区土壤地球化学特征及评价
GEOCHEMISTRY AND EVALUATION OF THE SOIL IN SOUTHERN LIAONING PROVINCE table 1 Geochenical parameter statistics of topsoil
摘要
Abstract
According to the soil geochemical survey data in Dalian‐yingkou area,southern Liaoning Province,the geochemical parameters of 53 elements are counted,which shows the change rules of elements in soil,and the content characteristics of elements are compared and summarized. Compared with the value of Chinese soil (layer A),each element content in the soil of southern Liaoning is relatively stable. The study on the distribution and characteristics of element content in different soil types indicates that the soil parent material is an important factor affecting element content. The effects of heavy metals on soil environmental quality are also evaluated. The comprehensive quality of soil geochemistry in southern Liaoning is good as a whole:The first and second class (risk‐free,priority protection)soils cover a large area of 19 486 km2,accounting for 96.37α of the total area;the third class (risk‐controllable,safe utilization)soil,648 km2,3.2α;while the fifth class (high risk,strict control)soil,86 km2,only 0.43α. Good soil environmental quality provides reliable geochemical basis for agricultural production and land planning and utilization, and new understanding for the study of soil eco‐geochemistry in the area as well.关键词
土壤/地球化学特征/评价/辽宁南部Key words
soil/geochemical characteristics/evaluation/southern Liaoning Province分类
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刘希瑶..辽宁南部地区土壤地球化学特征及评价[J].地质与资源,2019,28(5):470-476,7.基金项目
"全国土壤现状调查及污染防治"国家专项所属"辽宁省大连-营口地区多目标区域地球化学调查"项目(编号GZTR20060101). （编号GZTR20060101）
