生态学杂志2012，Vol.31Issue(7)：1718-1723,6.
植物建植对垃圾填埋场生物覆盖层甲烷氧化及其微生物群落的影响
Effects of vegetation establishment on the methane oxidation and methanotrophs community in landfill biocover
摘要
Abstract
In order to search for an effective way to reduce the methane emission from landfill, three columns were installed, two of which were planted with Medkago sativa and Trifolium repens, respectively to simulate the biocover of landfill, and one was taken as the control, with the effects of vegetation establishment on the methane oxidation and methanotrophs community in the landfill biocover investigated. Vegetation establishment could markedly contribute to the decline of substrate moisture, increase of substrate total nitrogen, and the promotion of the diffusion of O2 and CH4 in the landfill biocover, being beneficial to the enhancement of methane oxidation in the substrate. At the high-speed phase and declining phase of methane oxidation, the oxidation rate of methane in the columns with vegetation establishment was significantly higher than that in the control, but there was no significant difference between the columns covered with different plants. At the low-speed phase, the methane oxidation had no significant differences between the vegetated columns and the control one, but the methane oxidation rate was significantly higher in the column planted with M. sativa than with T. repens. The microbial community derived from phospholipid fatty acid analysis (PLFA) showed that vegetation establishment promoted the growth of type I methanotrophs in the bottom layer of the columns, and, with the decline of methane oxidation rate, there was a shift from type I methanotrophs to type II methanotrophs at the bottom layer of the columns.关键词
生物覆盖层/甲烷氧化细菌/固氮/PLFAKey words
biocover/ methanotrophs/ nitrogen fixation/ PLFA.分类
资源环境引用本文复制引用
王峰,张相锋,董世魁..植物建植对垃圾填埋场生物覆盖层甲烷氧化及其微生物群落的影响[J].生态学杂志,2012,31(7):1718-1723,6.基金项目
国家自然科学基金项目(50808017)资助. （50808017）
