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长期施肥对茶园土壤微生物群落功能多样性的影响
引用本文:徐华勤,肖润林,邹冬生,宋同清,罗文,李盛华.长期施肥对茶园土壤微生物群落功能多样性的影响[J].生态学报,2007,27(8):3355-3361.
作者姓名:徐华勤  肖润林  邹冬生  宋同清  罗文  李盛华
作者单位:1. 湖南农业大学生物科技学院,长沙,410128;中国科学院,亚热带农业生态研究所,长沙,410125
2. 中国科学院,亚热带农业生态研究所,长沙,410125
3. 湖南农业大学生物科技学院,长沙,410128
4. 湖南湘丰茶厂,长沙,410158
基金项目:中国科学院知识创新工程项目
摘    要:利用BIOLOG研究长期施肥后茶园土壤微生物群落功能多样性变化,结果表明:与清耕(CK)相比,各长期施肥处理AWCD值的变化速度(斜率)和最终能达到的AWCD值均有不同程度提高,其大小顺序为:DWY>DY>W>CK,可见施肥能不同程度提高微生物整体活性和丰富度,以有机无机肥配施效果最好。分析多样性指数表明:各处理对土壤常见微生物种类影响并不大,施有机肥使微生物群落均匀度有所降低。对碳源利用主成分起分异作用的主要是糖类和羧酸类物质。对AWCD值、多样性指数与土壤养分因子的相关性分析表明,在红壤茶园中土壤肥力提高有利于土壤微生物活性的提高。

关 键 词:施肥  土壤微生物  功能多样性
文章编号:1000-0933(2007)08-3355-07
收稿时间:2006/12/6 0:00:00
修稿时间:2006-12-06

Effects of long-term fertilization on functional diversity of soil microbial
community of the tea plantation
XU Huaqin,XIAO Runlin,ZOU Dongsheng,SONG Tongqing,LUO Wen and LI Shenghua.Effects of long-term fertilization on functional diversity of soil microbial
community of the tea plantation
[J].Acta Ecologica Sinica,2007,27(8):3355-3361.
Authors:XU Huaqin  XIAO Runlin  ZOU Dongsheng  SONG Tongqing  LUO Wen and LI Shenghua
Affiliation:1 College of Bioscience and Biotechnology Hunan Agricultural University, Changsha 410128, China 2 Institute of subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China 3 Hunan Xiangfeng Tea Factory, Changsha 410158, China
Abstract:The effects of long-term fertilization on soil microbial communities of tea plantation were investigated by using BIOLOG techniques.Based on AWCD and community diversity index,the treatments with fertilizers resulted in increasing the abundance and diversity of soil microorganisms compared to the non-fertilizing treatment,the combination of inorganic and organic fertilizers showed the greatest effect followed by the application of organic matter while inorganic fertilizer had less effect.Long-term fertilization exhibited little influence on the common species of soil microorganisms according to the analysis of multiple indexes;however,application of organic fertilizer caused unevenly distribution of microbial communities in soil.After analyzing the principle components,it was found that the differentiation of soil microbial communities was mainly caused by carbohydrate and carboxylic acid.The improvement of soil fertility of tea plantation enhanced the microbial activity.
Keywords:BIOLOG
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