干旱区生态环境知识资源中心(Arid): Formation and evolution of soil salinization based on multivariate statistical methods in Ningxia Plain, China

Arid

DOI	10.3389/feart.2023.1186779
	Formation and evolution of soil salinization based on multivariate statistical methods in Ningxia Plain, China
	Liu, Zhenlin; Gao, Maosheng; Sun, Qiming; Hou, Guohua; Zhao, Yinxin
通讯作者	Gao, MS
来源期刊	FRONTIERS IN EARTH SCIENCE
EISSN	2296-6463
出版年	2023
卷号	11
英文摘要	The Ningxia Plain, situated in the arid zone of northwest China, is a typical dryland plain that faces significant challenges to sustainable agricultural development due to soil salinization. In this study, we employed multivariate analysis and geostatistical methods to investigate the degree and distribution types of soil salinization and the hydrochemical characteristics of shallow groundwater. We also examined the relationship between soil salinization and hydrogeochemical characteristics by analyzing the sources of groundwater ions. This study developed a hydrogeochemical model to describe the soil salinization process in the Ningxia Plain. The results indicate that the majority of surface soils are alkaline type soils, followed by chloride-sulfate type soils. The groundwater is mainly fresh water and brackish water, with a hydrochemical type of SO4.HCO3-Ca.Mg or SO4.Cl-Ca.Mg. Saline water and salt water are represented by Cl-Na.Mg or Cl.SO4-Na.Mg. We also observed spatial trends in groundwater depth and total dissolved solids (TDS) concentrations that were opposite to soil salinity, which suggests a certain degree of second-order trend effect. Furthermore, the degree of soil salinization increased and then decreased from the pre-mountain alluvial plain to the Yellow River alluvial plain, while the groundwater chemistry ranged from simple to complex. The most severe area of soil salinization was found to be concentrated between Hongguang and Yaofu, which is also the area where shallow groundwater salinity accumulation is mainly influenced by continental salinization. In summary, this study provides valuable insights into the hydrogeochemical characteristics of the Ningxia Plain, which can inform strategies for mitigating soil salinization and promoting sustainable agriculture development in arid regions.
英文关键词	Ningxia Plain soil salinization groundwater hydrochemistry evolution model TDS
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:001057237100001
WOS关键词	GROUNDWATER ; SALINITY ; CLIMATE ; BASIN ; WATER
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396474
推荐引用方式 GB/T 7714	Liu, Zhenlin,Gao, Maosheng,Sun, Qiming,et al. Formation and evolution of soil salinization based on multivariate statistical methods in Ningxia Plain, China[J],2023,11.
APA	Liu, Zhenlin,Gao, Maosheng,Sun, Qiming,Hou, Guohua,&Zhao, Yinxin.(2023).Formation and evolution of soil salinization based on multivariate statistical methods in Ningxia Plain, China.FRONTIERS IN EARTH SCIENCE,11.
MLA	Liu, Zhenlin,et al."Formation and evolution of soil salinization based on multivariate statistical methods in Ningxia Plain, China".FRONTIERS IN EARTH SCIENCE 11(2023).