干旱区生态环境知识资源中心(Arid): Relationship between Soil Salinization and Groundwater Hydration in Yaoba Oasis, Northwest China

Arid

DOI	10.3390/w11010175
	Relationship between Soil Salinization and Groundwater Hydration in Yaoba Oasis, Northwest China
	Cui, Guoqing 1,2; Lu, Yudong 1; Zheng, Ce 1; Liu, Zhiheng 3; Sai, Jiamei 1
通讯作者	Cui, Guoqing
来源期刊	WATER
ISSN	2073-4441
出版年	2019
卷号	11 期号:1
英文摘要	Precipitation is scarce and evaporation is intense in desert areas. Groundwater is used as the main water source to develop agriculture in the oases. However, the effects of using groundwater on the ecological environment elicit widespread public concern. This study investigated the relationship between soil salinity and groundwater characteristics in Yaoba Oasis through in situ experiments. The relationship of the mineral content, pH, and main ion content of groundwater with soil salt was quantitatively evaluated through a gray relational analysis. Four main results were obtained. First, the fresh water area with low total dissolved solid (TDS) was usually HCO3- or SO42- type water, and salt water was mostly Cl- and SO42-. The spatial distribution of main ions in groundwater during winter irrigation in November was basically consistent with that during spring irrigation in June. However, the spatial distribution of TDS differed in the two seasons. Second, soil salinization in the study area was severe, and the salinization rate reached 72.7%. In this work, the spatial variability of soil salinization had a relatively large value, and the values in spring were greater than those in autumn. Third, the soil in the irrigated area had a high salt content, and the salt ion content of surface soil was higher than that of subsoil. A piper trilinear diagram revealed that Ca2+ and K+ + Na+ were the main cations. SO42-, Cl-, and HCO3- were the main anions, and salinization soil mainly contained SO42-. Fourth, the changes in soil salt and ion contents in the 0-10 cm soil layer were approximately similar to those of irrigation water quality, both of which showed an increasing trend. The correlation of surface soil salinity with the salinity of groundwater and its chemical components was high. In summary, this study identified the progress of irrigation water quality in soil salinization and provided a scientific basis for improving the oasis ecosystem, maintaining the healthy development of agriculture, managing oasis water resources, and policy development. Our findings can serve as a reference for other, similar oasis research.
英文关键词	soil salinization groundwater hydration gray correlation analysis Yaoba Oasis
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000459735100173
WOS关键词	RIVER-BASIN ; SALINITY ; WATER ; AQUIFER ; CAPACITY ; SALT
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/2XILL650/219163
作者单位	1.Changan Univ, Sch Environm Sci & Engn, Key Lab Subsurface Hydrol & Ecol Effects Arid Reg, Minist Educ, Xian 710054, Shaanxi, Peoples R China; 2.Minist Nat Resource PRC, Topog Surveying Brigade 1, Xian 710054, Shaanxi, Peoples R China; 3.Changan Univ, Sch Geol Engn & Geomat, Xian 710054, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Cui, Guoqing,Lu, Yudong,Zheng, Ce,et al. Relationship between Soil Salinization and Groundwater Hydration in Yaoba Oasis, Northwest China[J],2019,11(1).
APA	Cui, Guoqing,Lu, Yudong,Zheng, Ce,Liu, Zhiheng,&Sai, Jiamei.(2019).Relationship between Soil Salinization and Groundwater Hydration in Yaoba Oasis, Northwest China.WATER,11(1).
MLA	Cui, Guoqing,et al."Relationship between Soil Salinization and Groundwater Hydration in Yaoba Oasis, Northwest China".WATER 11.1(2019).