生态环境学报2016，Vol.25Issue(3)：517-522,6.DOI:10.16258/j.cnki.1674-5906.2016.03.022
铜矿重金属污染对土壤微生物群落多样性和酶活力的影响
The Impact of Heavy Metal Contamination on Soil Microbial Diversity and Enzyme Activities in A Copper Mine
摘要
Abstract
Contamination of heavy metals results in deterioration of soil health, which can be assessed by the diversity of microbial community and the activity of soil enzymes. In this study, four soil samples were collected from a copper mine in Tongling City of China, and were further analyzed for evaluating the contamination of five metals (arsenic, cadmium, zinc, lead and copper), the diversity of bacteria and fungi as well as the activity of soil enzymes. Our results indicated that: (1) the comprehensive pollution index was 0.71, 3.85, 4.37 and 8.47 for sample 1 to 4 (S1~S4), respectively, indicating that S1 was uncontaminated while S2, S3 and S4 were contaminated to different extent; cadmium was the main metal while no lead was detected in four samples; (2) the activity of urease, phosphatase and dehydrogenase decreased with the increase of the comprehensive pollution index of four samples; the activity of phosphatase and dehydrogenase was negatively correlated to the concentration of cadmium, zinc and lead, while the urease activity showed no significant correlation with these metals; (3) the diversity of bacteria and fungi decreased with the increase of the comprehensive pollution index, and the change of fungi abundance was more obvious than that of bacteria. This study will contribute to the bioremediation of heavy metal contamination in mining areas.关键词
铜矿/土壤/重金属/微生物群落多样性/土壤酶活力Key words
copper mine/soil/heavy metals/microbial diversity/soil enzymes activity分类
资源环境引用本文复制引用
张雪晴,张琴,程园园,荚荣..铜矿重金属污染对土壤微生物群落多样性和酶活力的影响[J].生态环境学报,2016,25(3):517-522,6.基金项目
国家自然科学基金项目（31571286）；国家环保公益性行业科研专项项目（201009041）；安徽省高等学校自然科学研究项目 （）
