摘要
参照土壤质量内涵的3个方面,对河北平原表层土壤元素进行了评价。研究认为:反映土壤肥力质量的肥力元素大部分处于丰富或适宜状态,只有土壤有机质、全氮、全磷、碱解氮、锌、钼、有效钼、有效硼等处于相对缺乏状态,其中有机质、全钼、有效钼缺乏严重;依据《土壤环境质量标准》(GB—15618—95)评价研究区土壤,其结果认为研究区土壤重金属环境质量状况良好,土壤重金属超标率非常低。同时通过对研究区重金属元素的形态分析认为:Cd的生物有效性和潜在危害性较大,是研究区最具有生态危害的重金属;反映土壤健康质量的土壤元素F处于丰富或适宜状态,I处于相对缺乏状态。
This paper evaluates the elements of Hebei plain topsoil by referring to the three aspects of soil quality.Study shows that elements reflecting soil fertility quality are in a rich or fitting state,but the other ones including TOC,N,P,alkali-hydrolyzable N,Zn,Mo,effective Mo,effective B are insufficient,especially TOC,Mo,effective Mo are deeply lacking.According to Soil Environmental Quality Standard（GB-15618-95）,it suggests that the environment of Hebei plain heavy metal elements are favorable,and the exceeding-standard rate of these elements is very low.And the analysis of these heavy metal elements form shows that the bio-availability and potential harmfulness of Cd is much large and it is the most ecologically harmful element in the area.Among the elements which reflect the quality of soil health,F is rich or fitting while I is in relatively lacking state.
出处
《现代地质》
CAS
CSCD
北大核心
2011年第3期569-574,共6页
Geoscience
基金
河北省农业地质调查项目(200414200007)
关键词
河北平原
土壤
重金属元素
评价
Hebei plain
soil
heavy metal element
evaluation
