水土保持学报2013，Vol.27Issue(2)：276-281,6.
吊兰生长对锌污染土壤微生物数量及土壤酶活性的影响
Effects of Chlorophytum comosum Growth on Microbial Biomass and Soil Enzymatic Activities in Zinc-polluted Soil
摘要
Abstract
Baesd on pot experiments by planting Chlorophytum comosum, this paper studied the microbial biomass, soil enzymatic activities and chemical properties in rhizosphere soil, non-rhizosphere soil and the soil of blank group which had no plants. The results showed: The microbial biomass, soil enzymatic activities, organic matter and soil respiration in the soil showed that the rhizosphere group >the non-rhizosphere group >the blank group. The total zinc concentration, pH, electrical conductivity and oxidation reduction potential showed that the blank group > the non-rhizosphere group > the rhizosphere group. When the concentration of zinc was 200 mg/kg, the numbers of bacteria and fungi were the most. The soil respiration and activities of urease and phosphatase reached their peaks. When the concentration of zinc was 500 mg/kg, the number of actinomycetes was the most and the invertase activity reached the maximum. The sensitivities order of three categories of microorganisms with zinc was: Fungi > actinomycetes > bacteria, and the sensitivity order of four soil enzymes with zinc was invertase > urease > phosphatase >catalase. Through the bivariate correlation analysis of microbial biomass with soil enzymatic activities, it was found that the effects of zinc treatments on soil enzymatic activities with actinomycetes changing were the greatest, followed by fungi and bacteria affected the lowest. The soil environment could be improved by planting Chlorophytum comosum, and it had broad application prospects in remediating zinc-contaminated soil.关键词
吊兰/锌/微生物数量/土壤酶活性/根际Key words
Chlorophytum comosum / zinc/ microbial biomass/ soil enzymatic activity/ rhizosphere分类
资源环境引用本文复制引用
李伟,韦晶晶,刘爱民,王友保,朱志鹏,王兴飞..吊兰生长对锌污染土壤微生物数量及土壤酶活性的影响[J].水土保持学报,2013,27(2):276-281,6.基金项目
国家自然科学基金项目(31070401) （31070401）
教育部科学技术研究重点项目(212079) （212079）
安徽省重点实验室基金资助项目"重要生物资源保护与利用研究" （）
