气候变化领域集成服务门户(CCPortal): Shifts in soil microbial metabolic activities and community structures along a salinity gradient of irrigation water in a typical arid region of China

CCPortal

DOI	10.1016/j.scitotenv.2017.04.105
	Shifts in soil microbial metabolic activities and community structures along a salinity gradient of irrigation water in a typical arid region of China
	Chen Lijuan; Li Changsheng; Feng Qi; Wei Yongping; Zheng Hang; Zhao Yan; Feng Yongjiu; Li Huiya
发表日期	2017
ISSN	0048-9697
EISSN	1879-1026
卷号	598
英文摘要	Saline water irrigation can change soil environment, which thereby influence soil microbial process. Based on a field experiment, the shifts in soil microbial metabolic activities and community structures under five irrigation salinities were studied using Biolog and metagenomic methods in this study. The results demonstrated that microbial metabolic activities were greatly restrained in saline water irrigated soils, as average well color development (AWCD) reduced under all saline water irrigation treatments. Although no significant difference in carbon substrate utilization of all six categories was observed among Mild, Medium, High and Severe treatments, the consumption of sole carbon source was significantly varied. Especially, asparagine, galacturonic, putrescine and 4-benzoic acid played a decisive role in dominating the differences. Soil bacterial richness and diversity increased with irrigation salinity while the number of bacterial phyla decreased. Three significantly increased (Proteobacteria, Actinobacteria and Chloroflexi), two decreased (Planctomycetes, Bacteroidetes) and two irresponsive (Gemmatimonadetes and Acidobacteria) phyla were observed as the dominant groups in saline water irrigated soils. The results presented here could improve the understanding of the soil biological process under saline circumstance. (C) 2017 Elsevier B.V. All rights reserved.
关键词	Saline water Functional diversity Soil bacteria Community structure Metagenomics
学科领域	Environmental Sciences & Ecology
语种	英语
WOS研究方向	Environmental Sciences
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111913
作者单位	Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Chen Lijuan,Li Changsheng,Feng Qi,et al. Shifts in soil microbial metabolic activities and community structures along a salinity gradient of irrigation water in a typical arid region of China[J]. 中国科学院西北生态环境资源研究院,2017,598.
APA	Chen Lijuan.,Li Changsheng.,Feng Qi.,Wei Yongping.,Zheng Hang.,...&Li Huiya.(2017).Shifts in soil microbial metabolic activities and community structures along a salinity gradient of irrigation water in a typical arid region of China.SCIENCE OF THE TOTAL ENVIRONMENT,598.
MLA	Chen Lijuan,et al."Shifts in soil microbial metabolic activities and community structures along a salinity gradient of irrigation water in a typical arid region of China".SCIENCE OF THE TOTAL ENVIRONMENT 598(2017).