新疆农业科学2018，Vol.55Issue(4)：726-736,11.DOI:10.6048/j.issn.1001-4330.2018.04.017
开垦对盐渍化弃耕地土壤细菌群落组成和结构的影响
Effects of Reclamation on the Composition and Structure of Soil Bacterial Communities in Abandoned Salinized Farmland
摘要
Abstract
[Objective] Abandoned salinized land in Xinjiang of China is being reclaimed for cotton pro-duction. The effect of reclamation on soil quality and function was obtained by comparing the changes of soil bacterial communities before and after reclamation.[Method]The specific objectives of this field study were:(1) to compare bacterial composition and diversity in unfarmed ( i. e. , unreclaimed) and cropped soils and (2) to explore the specific functions of the flora identified by Illumina MiSeq sequencing.[Result]Reclama-tion significantly reduced soil EC and available K, and significantly increased SOM, available N, and availa-ble P. Bacterial species richness and diversity increased when abandoned farmland was reclaimed for cotton production. Proteobacteria and Firmicutes were the dominant phyla in unfarmed soil. Reclamation reduced the relative abundance of Firmicutes, but increased the contents of Chloroflexi, Acidobacteria, and Actinobacte-ria. Cluster analyses showed that there was a significant difference in the bacterial community between the a-bandoned farmland and the cultivated land after the reclamation.[Conclusion]In general, cotton production after reclamation improved soil physical and chemical properties and changed the structure and composition of soil bacterial communities compared with unfarmed soil.关键词
开垦/土壤细菌群落/MiSeq测序/细菌多样性Key words
reclamation/soil bacterial community/MiSeq sequencing/bacterial diversity分类
农业科技引用本文复制引用
杨磊,张玉龙,姜同轩,张凤华..开垦对盐渍化弃耕地土壤细菌群落组成和结构的影响[J].新疆农业科学,2018,55(4):726-736,11.基金项目
国家自然科学基金项目(31560359) （31560359）
公益性行业科研专项(201503120)The National Natural Science Foundation of China(31560359)and Special Research Fund for Public Nonprofit Industries(201503120) （201503120）
