气候变化领域集成服务门户(CCPortal): Spatial Variations of Soil Microbial Activities in Saline Groundwater-Irrigated Soil Ecosystem

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DOI	10.1007/s00267-016-0665-7
	Spatial Variations of Soil Microbial Activities in Saline Groundwater-Irrigated Soil Ecosystem
	Chen, Li-Juan; Feng, Qi; Li, Chang-Sheng; Song, You-Xi; Liu, Wei; Si, Jian-Hua; Zhang, Bao-Gui
发表日期	2016
ISSN	0364-152X
EISSN	1432-1009
卷号	57 期号:5
英文摘要	Spatial variations of soil microbial activities and its relationship with environmental factors are very important for estimating regional soil ecosystem function. Based on field samplings in a typical saline groundwater-irrigated region, spatial variations of soil microbial metabolic activities were investigated. Combined with groundwater quality analysis, the relationship between microbial activities and water salinity was also studied. The results demonstrated that moderate spatial heterogeneity of soil microbial activities presented under the total dissolved solids (TDS) of groundwater ranging from 0.23 to 12.24 g L-1. Groundwater salinity and microbial activities had almost opposite distribution characteristics: slight saline water was mainly distributed in west Baqu and south Quanshan, while severe saline and briny water were dominant in east Baqu and west Huqu; however, total AWCD was higher in the east-center and southwest of Baqu and east Huqu, while it was lower in east Baqu and northwest Huqu. The results of correlation analyses demonstrated that high-salinity groundwater irrigation had significantly adverse effects on soil microbial activities. Major ions Ca2+, Mg2+, Cl-_, and SO4 (2-) in groundwater decisively influenced the results. Three carbon sources, carbohydrates, amines, and phenols, which had minor utilization rates in all irrigation districts, were extremely significantly affected by high-salinity groundwater irrigation. The results presented here offer an approach for diagnosing regional soil ecosystem function changes under saline water irrigation.
关键词	Spatial variations Soil microbial activities Saline water irrigation Desert oasis
学科领域	Environmental Sciences & Ecology
语种	英语
WOS研究方向	Environmental Sciences
来源期刊	ENVIRONMENTAL MANAGEMENT
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/111883
作者单位	Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Chen, Li-Juan,Feng, Qi,Li, Chang-Sheng,et al. Spatial Variations of Soil Microbial Activities in Saline Groundwater-Irrigated Soil Ecosystem[J]. 中国科学院西北生态环境资源研究院,2016,57(5).
APA	Chen, Li-Juan.,Feng, Qi.,Li, Chang-Sheng.,Song, You-Xi.,Liu, Wei.,...&Zhang, Bao-Gui.(2016).Spatial Variations of Soil Microbial Activities in Saline Groundwater-Irrigated Soil Ecosystem.ENVIRONMENTAL MANAGEMENT,57(5).
MLA	Chen, Li-Juan,et al."Spatial Variations of Soil Microbial Activities in Saline Groundwater-Irrigated Soil Ecosystem".ENVIRONMENTAL MANAGEMENT 57.5(2016).