维普中文期刊产品整合服务

Soil Microbial Community Structure in Diverse Land Use Systems:A Comparative Study Using Biolog,DGGE,and PLFA Analyses

查看全文 作　　者：XUE [1,2]Dong;YAO Huai-[1]Ying;GE De-[1]Yong;HUANG Chang-[1]Yong 高影响力作者 机构地区：[1]Key Laboratory of Polluted Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Huajiachi Campus, Hangzhou 310029 (China).;[2]Department of Environmental and Chemical Engineering, Luoyang Institute of Science and Technology, Luoyang 471023 (China)高影响力机构 出　　处：《Pedosphere》索引2008年第18卷第5期,共11页高影响力期刊 基　　金：the National Natural Science Foundation of China (Nos.30671207 and 40371063). 摘　　要：Biolog,16S rRNA gene denaturing gradient gel electrophoresis(DGGE) ,and phospholipid fatty acid(PLFA) analyses were used to assess soil microbial community characteristics in a chronosequence of tea garden systems(8-,50-,and 90-year-old tea gardens) ,an adjacent wasteland,and a 90-year-old forest. Biolog analysis showed that the average well color development(AWCD) of all carbon sources and the functional diversity based on the Shannon index decreased(P < 0.05) in the following order:wasteland > forest > tea garden. For the DGGE analysis,the genetic diversity based on the Shannon index was significantly lower in the tea garden soils than in the wasteland. However,compared to the 90-year-old forest,the tea garden soils showed significantly higher genetic diversity. PLFA analysis showed that the ratio of Gram positive bacteria to Gram negative bacteria was significantly higher in the tea garden soils than in the wasteland,and the highest value was found in the 90-year-old forest. Both the fungal PLFA and the ratio of fungi to bacteria were significantly higher in the three tea garden soils than in the wasteland and forest,indicating that fungal PLFA was significantly affected by land-use change. Based on cluster analysis of the soil microbial community structure,all three analytical methods showed that land-use change had a greater effect on soil microbial community structure than tea garden age. 关 键 词：土地利用系统 土壤微生物 群落结构 磷脂
相关文献

参考文献(47)

引证文献(57)

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1　渝公网安备 50019002500403号　违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费