应用生态学报2012，Vol.23Issue(3)：798-806,9.
铜川煤矿区重金属污染对土壤微生物群落代谢和酶活性的影响
Effects of heavy metals pollution on soil microbial communities metabolism and soil enzyme activities in coal mining area of Tongchuan, Shaanxi Province of Northwest China
摘要
Abstract
This paper studied the metabolism of soil microbes, functions of soil microbial communities , and activities of soil enzymes in a coal mining area of Tongchuan. In the coal mining area, the concentrations of soil Cu, Zn, Cd, and Pb were significantly higher than those in the non-mining area, of which, Cd contributed most to the heavy metals pollution. By adopting Biolog method combining with principal component analysis (PCA) and cluster analysis, it was found that the metabolic characteristics of different soil microbial communities varied significantly with increasing soil heavy metals pollution, and the variation was mainly manifested in the metabolic patterns of carbon sources such as saccharides and amino acids. In slightly and moderately polluted soils, the utilization of carbon sources by soil microbial communities was activated; while in heavily polluted soils, the carbon sources utilization was inhibited. The activities of soil urease, protease, alkaline phos-phatase, and catalase all tended to decline with intensifying soil heavy metals pollution. The soil urease, protease, alkaline phosphatase, and catalase activities in the coal mining area were 50. 5% -65.1% , 19. 1% -57. 1% , 87. 2% -97. 5% , and 77. 3% -86. 0% higher than those in the non-mining area, respectively. The activities of soil sucrase and cellulase were activated in slightly and moderately polluted soils, but inhibited in heavily polluted soils.关键词
重金属污染/土壤微生物群落代谢/Biolog方法/聚类分析和PCA分析/酶活性Key words
heavy metals pollution/ soil microbial communities metabolism/ Biolog/ cluster analy-sis and principal component analysis/ enzyme activity分类
生物科学引用本文复制引用
郭星亮,谷洁,陈智学,高华,秦清军,孙薇,张卫娟..铜川煤矿区重金属污染对土壤微生物群落代谢和酶活性的影响[J].应用生态学报,2012,23(3):798-806,9.基金项目
国家自然科学基金项目(40771109,40871119)、科技部星火计划项目(2008GA850013)和农业部"948"项目(2010-Z20)资助. （40771109,40871119）
