干旱区生态环境知识资源中心(Arid): Characterizing Spatiotemporal Variations of Soil Salinization and Its Relationship with Eco-Hydrological Parameters at the Regional Scale in the Kashi Area of Xinjiang, China from 2000 to 2017

Arid

DOI	10.3390/w13081075
	Characterizing Spatiotemporal Variations of Soil Salinization and Its Relationship with Eco-Hydrological Parameters at the Regional Scale in the Kashi Area of Xinjiang, China from 2000 to 2017
	Wang, Bo; Dong, Xinguang; Wang, Zhihui; Qin, Guoqiang
通讯作者	Dong, XG (corresponding author), Xinjiang Agr Univ, Coll Hydraul & Civil Engn, Urumqi 830052, Peoples R China. ; Wang, ZH (corresponding author), Yellow River Conservancy Commiss, Yellow River Inst Hydraul Res, Zhengzhou 450003, Peoples R China. ; Wang, ZH (corresponding author), Minist Water Resources, Key Lab Soil & Water Conservat Loess Plateau, Zhengzhou 450003, Peoples R China.
来源期刊	WATER
EISSN	2073-4441
出版年	2021
卷号	13 期号:8
英文摘要	Soil salinization is one of the most serious issues of land degradation, especially in inland drylands, such as the Kashgar region in the Xinjiang province, western China. The investigation of the spatiotemporal variations of soil salinization and its causes is critical for regional ecological restoration and social development. In this study, salinization severity was firstly interpreted in Kashgar region for the years 2000, 2010, and 2017 using multitemporal Landsat images, and the spatiotemporal variations of salinized soil area, salinization severity index, and important index of salinization change were then analyzed using transition matrix method. Finally, the relationship between salinization and eco-hydrological parameters at the regional scale was investigated using correlation analysis and multivariate linear regression. The results show that salinized soil is mainly concentrated in irrigated oasis areas. Although the decrease rate of total salinized soil area is decreasing, the decrease rate of average salinization severity is increasing gradually. There is an increasing trend for the improved area of salinized soil, whereas an opposite trend was observed for the deteriorated area of salinized soil. The conversion from extremely severe salinized soil to the severe ones was the dominant transforming type from 2000 to 2017; meanwhile, the transformation from non-salinized soil to salinized soil for the newly reclaimed farmland was observed, indicating that some necessary irrigation control measures must be taken to avoid further soil salinizing. A significant negative correlation between salinization severity and evapotranspiration, normalized difference vegetation index (NDVI) was observed, implying that soil structure change induced by vegetation, associated with high evapotranspiration (ET) and low land surface temperature (LST), played a positive role in alleviating soil salinization in this region. It is concluded that the soil salinization had been alleviated from 2000 to 2017, mainly due to the combined effects of the farmland expansion and the reasonable irrigation system.
英文关键词	soil salinization eco-hydrological factors remote sensing spatiotemporal patterns correlation analysis
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000644896000001
WOS关键词	ELECTRICAL-CONDUCTIVITY ; SPATIAL-DISTRIBUTION ; SALINITY ASSESSMENT ; URMIA LAKE ; SCENARIO
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351958
作者单位	[Wang, Bo; Dong, Xinguang; Qin, Guoqiang] Xinjiang Agr Univ, Coll Hydraul & Civil Engn, Urumqi 830052, Peoples R China; [Wang, Zhihui] Yellow River Conservancy Commiss, Yellow River Inst Hydraul Res, Zhengzhou 450003, Peoples R China; [Wang, Zhihui] Minist Water Resources, Key Lab Soil & Water Conservat Loess Plateau, Zhengzhou 450003, Peoples R China
推荐引用方式 GB/T 7714	Wang, Bo,Dong, Xinguang,Wang, Zhihui,et al. Characterizing Spatiotemporal Variations of Soil Salinization and Its Relationship with Eco-Hydrological Parameters at the Regional Scale in the Kashi Area of Xinjiang, China from 2000 to 2017[J],2021,13(8).
APA	Wang, Bo,Dong, Xinguang,Wang, Zhihui,&Qin, Guoqiang.(2021).Characterizing Spatiotemporal Variations of Soil Salinization and Its Relationship with Eco-Hydrological Parameters at the Regional Scale in the Kashi Area of Xinjiang, China from 2000 to 2017.WATER,13(8).
MLA	Wang, Bo,et al."Characterizing Spatiotemporal Variations of Soil Salinization and Its Relationship with Eco-Hydrological Parameters at the Regional Scale in the Kashi Area of Xinjiang, China from 2000 to 2017".WATER 13.8(2021).