土壤2016，Vol.48Issue(6)：1114-1119,6.DOI:10.13758/j.cnki.tr.2016.06.008
油葵与光果甘草间作对根际土壤酶活性及微生物功能多样性的影响
Effects ofHelianthus annuus andGlycyrrhiza glabraIntercropping on Rhizosphere Soil Enzyme Activities and Soil Microbes Functional Diversity
摘要
Abstract
In order to provide a scientific basis for amelioration of saline-alkali soils, the pot experiment was conducted to study the effects of intercropping ofHelianthus annuus(Xinkui 10) andGlycyrrhiza glabra on enzyme activities and microbial diversity of saline-alkali rhizosphere soil. The results showed that, compared with the monoculture, intercropping of Xinkui 10 withGlycyrrhiza glabra significantly increased the activities of rhizosphere soil invertase, urease, phosphatase and protease. In 144 h incubation period, the AWCD of the intercropping treatment was higher than that of monoculture. The intercropping also significantly improved the utilization of AWCD(72h,P<0.05). Compared with monoculture, the intercropping significantly increased the microbial diversity indexes (S,H). Principal component analysis showed that the intercropping of Xinkui 10 with Glycyrrhiza glabra could optimize the microbial community composition of saline-alkali soils. The carbon sources mostly used by saline-alkali soil microbes were carboxylic acids, polymers, amino acids and carbohydrates. Therefore, the intercropping of Xinkui10 withGlycyrrhiza glabra has a positive effect on soil saline-alkali quality, because it significantly enhanced the related enzyme activities and soil microbial utilization degrees of carbon source, and changed the microbial diversities.关键词
光果甘草/种植模式/盐碱地/土壤酶/土壤微生物多样性Key words
Glycyrrhiza glabra/Cropping pattern/Saline-alkali soil/Soil enzyme activity/Soil microbial diversity分类
农业科技引用本文复制引用
张旭龙,马淼,吴振振,张志政,林慧..油葵与光果甘草间作对根际土壤酶活性及微生物功能多样性的影响[J].土壤,2016,48(6):1114-1119,6.基金项目
国家自然科学基金项目(31360047)和石河子大学重大科技攻关项目(gxjs2012-zdgg06-04)资助。 （31360047）
