摘要
通过对84个地表土样、17个剖面土样和11个基岩样的磁参数与化学分析测试,对湖州市土壤磁化率与重金属元素Cu、Zn有效量和全量分布规律、成因及两者的相关性进行了研究。研究发现:①表层土壤磁化率高值异常区总体上与土壤重金属元素Cu、Zn有效量和全量高值分布区吻合程度非常高;剖面土壤磁化率值与Cu、Zn有效量和全量含量总体上均呈现出向下递减的相同特点。②表层土壤磁化率与Cu、Zn有效量和全量高值异常均系人类经济工程活动影响所致,主要与当地城镇生活垃圾随意堆放、垃圾施肥、工业“三废”排放、农药和化肥的过量使用等有关。③表层土壤磁化率值与重金属元素Cu、Zn有效量和全量含量之间在不同环境条件下相关性存在明显差异。
Based on the test results of magnetic parameters and chemical analyses of 84 surface and 17 section soil samples ,11 rock samples ,the distribution of soil magnetic susceptibility and Cu ,Zn effective and total contents,origin and their correlativity were studied in Huzhou city,Yangtze River Delta where industry and agriculture are flourishing. The study revealed that ①The high anomalous areas of magnetic susceptibility are consistent with those of soil heavy metal Cu ,Zn effective and total contents in the surface soils in the Huzhou city of developed industry and agriculture areas. The magnetic susceptibility and Cu, Zn effective and total contents in the section soils have the same characteristics decreasing from the upper to the lower; ②The high anomaly of the magnetic susceptibility and Cu ,Zn effective and total contents in the surface soils resulted in the influence of mankind economic and engineering activities, and was principally related to free piling up life refuses, applying fertilizer with garbage, discharge of industrial waste gas ,material and water,over-application of pesticide and chemical fertilizer in the local towns ;③There are obvious differences of correlativity between soil magnetic susceptibility and effective copper,total copper, effective zinc and total zinc contents in the different environmental conditions in Huzhou city.
出处
《资源调查与环境》
2006年第3期223-232,共10页
Resources Survey & Environment
基金
中国地质调查局资助项目(编号0299203003和200312300013)部分成果
关键词
磁化率
重金属元素
Cu
ZN
土壤
环境磁学
地球化学
湖州
magnetic susceptibility
heavy metal
Cu
Zn
soil
environmental magnetism
geochemistry
Huzhou city
