应用生态学报2018，Vol.29Issue(3)：909-914,6.DOI:10.13287/j.1001-9332.201803.031
间作紫云英下油菜根际土壤微生物群落功能特征
Effects of intercropping Chinese milk vetch on functional characteristics of soil microbial community in rape rhizosphere
摘要
Abstract
The application of green manure is facing serious problems in purple soil region of southwest China. With the aim to explore the potential application of green manure,we examined the functional characteristics of soil microbial community in a system of Chinese milk vetch intercropped with rape. The innovations are the application of Chinese milk vetch in dry land of the southwest China and the establishment of new planting pattern of rape by providing empirical data. Results showed that the intercropping with Chinese milk vetch decreased the carbon resource use efficiency of microbial community in rape rhizosphere,especially for the utilization of carbohydrates. At the same time,Shannon index,Simpson index,and richness were reduced,but evenness index was increased by intercropping. Those results from cluster analysis and principal component analysis suggest that the soil microbial community composition was significantly different between monocropping and intercropping. The carbohydrates,amino acids and carboxylic acids were the sensitive carbon sources for differentiating the changes of the microbial community induced by monocropping and intercropping. Intercropping Chinese milk vetch could decrease functional activity,change community composition,and reduce diversity of soil microbial community in rape rhizosphere.关键词
绿肥/隔根根系/互作/碳源/微生物多样性Key words
green manure/root separation/root interaction/carbon source/microbial diversity引用本文复制引用
周泉,王龙昌,邢毅,马淑敏,张小短,陈娇,石超..间作紫云英下油菜根际土壤微生物群落功能特征[J].应用生态学报,2018,29(3):909-914,6.基金项目
本文由公益性行业(农业)科研专项(201503127)和国家自然科学基金项目(31271673)资助 （农业）
