长岛县南五岛土壤地球化学特征及环境质量评价

Geochemical Characteristics and Environment Quality Evaluation of Soils in Five Islands of Southern Changdao County

以长岛县南五岛土壤为研究对象,对区内土壤元素的含量特征进行分析,并对土壤环境质量进行评价。结果表明:研究区土壤平均含量与烟台市、山东省以及全国土壤平均水平相比,除CaO,Na2O,Hg,S,Se,P,F元素含量差异较明显,其他大部分元素含量相对稳定,元素含量的高低不仅与研究区背景条件有关,也与人类活动密切相关。研究区土壤环境质量整体较好,大部分区域属于清洁区和尚清洁区,仅城区局部受到一定程度的Cd,Hg,Zn污染。

Taking the soil of five islands in the south of Changdao county as t tics of elements content have been analyzed, and soil environment quality has the results, comparing with average content of soil in Yantai city, Shandong he study objects, characteris been evaluated. According to Province and the whole coun- try, there is an obvious difference in CaO, NazO, Hg, S, Se, P, F; however, for other element content, it is relatively stable. The element content is not only related to the background conditions of the study area, but also closely related to human activities. The soil environmental quality of the study area is generally good, most of the areas belongs to clean zone and proximity clean zone, while only parts of the urban areas are polluted by Cd, Hg and Zn.