干旱地区农业研究2017，Vol.35Issue(2)：247-254,8.DOI:10.7606/j.issn.1000-7601.2017.02.40
生草对沙地葡萄园土壤微生物群落碳源利用特征的影响
Effects of intercropping herbages on carbon source metabolism of soil microbial community in sandy vineyard
摘要
Abstract
In order to study the functional diversity of soil microbial community in vineyard intercropping with herbage,the Biolog-Eco technology was used to analyze the utilization features of carbon sources by microbial community,with clean cultivation as the control.The results revealed that the average well color development (AWCD) and diversity indices (Shannon-Wiener index,Simpson index and richness index) under herbage intercropping were significantly increased compared with the control,and they decreased as soil depth increasing,with the highest values in 0 ～ 20 cm soil layer under herbage intercropping.Additionally,the utilization intensity of 6 carbon substrates was enhanced by herbage intercropping,and the increase rote was ranked as:carboxylic acids ＞ phenolic acid ＞ amines ＞ carbohydrates ＞ amino acids ＞ polymer.The principal component analysis showed that samples of control and herbage intercropping were distributed in different zones,which meant that the function of soil microbial community was obviously altered by herbage intercropping.Carboxylic acids,carbohydrates and phenolic acids were the most sensitive carbon sources in the aspect of soil microbial metabolism induced by herbage intercropping.Overall,herbage intercropping could not only enrich the diversity of microbial community,but also improve its structure in sandy vineyard.关键词
生草/土壤微生物功能多样性/Biolog-Eco技术Key words
herbage intercropping/soil microbial functional diversity/Biolog-Eco technology分类
农业科技引用本文复制引用
司鹏,于会丽,高登涛,邵微,乔宪生,陈锦永..生草对沙地葡萄园土壤微生物群落碳源利用特征的影响[J].干旱地区农业研究,2017,35(2):247-254,8.基金项目
河南省重点科技攻关项目(152102110112) （152102110112）
中央级科研院所基本科研业务费专项(1610192017607) （1610192017607）
中国农业科学院科技创新工程专项经费(CAAS-ASTIP-2017-ZFRI) （CAAS-ASTIP-2017-ZFRI）
