干旱区生态环境知识资源中心(Arid): Determining the main contributing factors to nutrient concentration in rivers in arid northwest China using partial least squares structural equation modeling

Arid

DOI	10.1016/j.jenvman.2023.118249
	Determining the main contributing factors to nutrient concentration in rivers in arid northwest China using partial least squares structural equation modeling
	Wang, Weiwei; Zhang, Fei; Zhao, Qi; Liu, Changjiang; Jim, Chi Yung; Johnson, Verner Carl; Tan, Mou Leong
通讯作者	Zhang, F
来源期刊	JOURNAL OF ENVIRONMENTAL MANAGEMENT
ISSN	0301-4797
EISSN	1095-8630
出版年	2023
卷号	343
英文摘要	Understanding the main driving factors of oasis river nutrients in arid areas is important to identify the sources of water pollution and protect water resources. Twenty-seven sub-watersheds were selected in the lower oasis irrigated agricultural reaches of the Kaidu River watershed in arid Northwest China, divided into the site, riparian, and catchment buffer zones. Data on four sets of explanatory variables (topographic, soil, meteorological elements, and land use types) were collected. The relationships between explanatory variables and response variables (total phosphorus, TP and total nitrogen, TN) were analyzed by redundancy analysis (RDA). Partial least squares structural equation modeling (PLS-SEM) was used to quantify the relationship between explanatory as well as response variables and fit the path relationship among factors. The results showed that there were significant differences in the TP and TN concentrations at each sampling point. The catchment buffer exhibited the best explanatory power of the relationship between explanatory and response variables based on PLS-SEM. The effects of various land use types, meteorological elements (ME), soil, and topography in the catchment buffer were responsible for 54.3% of TP changes and for 68.5% of TN changes. Land use types, ME and soil were the main factors driving TP and TN changes, accounting for 95.56% and 94.84% of the total effects, respectively. The study provides a reference for river nutrients management in arid oases with irrigated agriculture and a scientific and targeted basis to mitigate water pollution and eutrophication of rivers in arid lands.
英文关键词	Arid climate Buffer zone Nutrients Driving factors PLS-SEM
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001010860100001
WOS关键词	SEASONAL WATER-QUALITY ; CLIMATE-CHANGE ; LAND-COVER ; PHOSPHORUS ; SEDIMENT ; PATTERNS ; NITROGEN ; NITRATE ; BASIN ; EUTROPHICATION
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397288
推荐引用方式 GB/T 7714	Wang, Weiwei,Zhang, Fei,Zhao, Qi,et al. Determining the main contributing factors to nutrient concentration in rivers in arid northwest China using partial least squares structural equation modeling[J],2023,343.
APA	Wang, Weiwei.,Zhang, Fei.,Zhao, Qi.,Liu, Changjiang.,Jim, Chi Yung.,...&Tan, Mou Leong.(2023).Determining the main contributing factors to nutrient concentration in rivers in arid northwest China using partial least squares structural equation modeling.JOURNAL OF ENVIRONMENTAL MANAGEMENT,343.
MLA	Wang, Weiwei,et al."Determining the main contributing factors to nutrient concentration in rivers in arid northwest China using partial least squares structural equation modeling".JOURNAL OF ENVIRONMENTAL MANAGEMENT 343(2023).