摘要
通过对大庆城郊湿地北二十里泡沉积物重金属含量的分析测定,结果表明主要重金属在各点位含量均超过清洁对照点,将全区域土壤重金属元素背景值作标准,北二十里泡湿地沉积物中Hg、Zn、Cu、Cd、Pb等元素超标较多。内梅罗综合污染指数评价表明,北二十里泡底泥沉积物重金属内梅罗综合污染指数范围是2.7￣28.79,平均值为6.14,综合评价等级为Ⅲ级,属于中度污染。
This paper dealt with the contents of heavy metals in sediments from suburb wetland in Daqing, The result showed that the contents of heavy metals have excessed the cleaned site, we found that the contents of Hg, Zn, Cu, Cd, Pb were very high in sediment of Beiershili wetland. According to the Index of Nemerom, Heavy Metals in the bottom sediment analysis results have shown that Beiershili Wetland were contaminated and the degree of contaminated is Ⅲ level, belongs to medium Pollution.
出处
《中国农学通报》
CSCD
2007年第3期386-391,共6页
Chinese Agricultural Science Bulletin
基金
国家自然科学基金资助项目"资源型城镇土地利用与景观动态研究-以大庆市为例"(40271044)
哈尔滨师范大学骨干教师基金资助项目"大庆纳污泡沼湿地沉积物重金属污染及潜在生态危害研究"(KJ2006-01)
关键词
城郊湿地
沉积物
重金属
内梅罗综合指数
Suburb wetland, Sediments, Heavy metal, Nemerow integrated index
