气候变化领域集成服务门户(CCPortal): Assessment of soil salinisation in the Ejina Oasis located in the lower reaches of Heihe River, Northwestern China

CCPortal

DOI	10.1080/02757540.2018.1554060
	Assessment of soil salinisation in the Ejina Oasis located in the lower reaches of Heihe River, Northwestern China
	Zhao, Yu; Feng, Qi; Lu, Aigang; Deo, Ravinesh C.
发表日期	2019
ISSN	0275-7540
EISSN	1029-0370
卷号	35 期号:4
英文摘要	Recognition of the spatial-temporal distribution characteristics of soil salinity has become an important basis for the formulation of strategies required in the utilisation and sustainable development of soil resources in arid and semi-arid area. In this paper, based on vegetation cover dataset during 1998-2015 in Ejina region combined with the collected soil salinity data, geostatistical methods were used to explore the temporal and spatial dynamic characteristics of soil salinity and its impact on vegetation in the study area. The results showed significant differences in soil salinisation characteristics with a large variability in the soil salinity among the different soil depths, with a variation coefficient ranging from about 0.97-1.47. Soils are represented by a continuous variation, both in space and time. Soil salinity showed an obvious spatial autocorrelation, with a plaque type distribution. The areas of the salinised soil found for the years 2003, 2011 and 2015 were approximately 18,565, 23,206 and 17,721 km(2), respectively. From the relationships deduced between the normalised difference vegetation index (NDVI) and soil moisture and salt content in different soil depths, the present study ascertains that the soil moisture content is the most important limiting factor of vegetation growth in Ejina Oasis.
关键词	Soil salinity spatial-temporal distribution geostatistics vegetation index Ejina Oasis
学科领域	Biochemistry & Molecular Biology; Environmental Sciences & Ecology
语种	英语
WOS研究方向	Biochemistry & Molecular Biology ; Ecology ; Environmental Sciences
来源期刊	CHEMISTRY AND ECOLOGY
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/112085
作者单位	Weinan Normal Univ, Sch Chem & Mat Sci, Weinan, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Yu,Feng, Qi,Lu, Aigang,et al. Assessment of soil salinisation in the Ejina Oasis located in the lower reaches of Heihe River, Northwestern China[J]. 中国科学院西北生态环境资源研究院,2019,35(4).
APA	Zhao, Yu,Feng, Qi,Lu, Aigang,&Deo, Ravinesh C..(2019).Assessment of soil salinisation in the Ejina Oasis located in the lower reaches of Heihe River, Northwestern China.CHEMISTRY AND ECOLOGY,35(4).
MLA	Zhao, Yu,et al."Assessment of soil salinisation in the Ejina Oasis located in the lower reaches of Heihe River, Northwestern China".CHEMISTRY AND ECOLOGY 35.4(2019).