干旱区生态环境知识资源中心(Arid): Spatiotemporal patterns and main driving factors of drainage water quality of an arid irrigation district with shallow groundwater table

Arid

DOI	10.1007/s11356-023-30486-9
	Spatiotemporal patterns and main driving factors of drainage water quality of an arid irrigation district with shallow groundwater table
	Chen, Shuai; Xia, Yuhong; Wan, Heyang; Wang, Ruiping; Lu, Yaoze; Ao, Yunfei; Zhou, Yunmei; Shang, Songhao
通讯作者	Shang, SH
来源期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN	0944-1344
EISSN	1614-7499
出版年	2023
英文摘要	Drainage water quality is a crucial factor reflecting the regime of agricultural non-point source pollution in irrigation districts and is closely related to land use, soil texture, cropping pattern, fertilization, and irrigation and drainage conditions. However, the response of drainage water quality to various natural and anthropogenic factors needs further exploration in irrigation districts affected by shallow groundwater table. Spatiotemporal patterns of chemical oxygen demand (COD), total phosphorus (TP), total nitrogen (TN), and ammonium nitrogen (NH4-N) were monitored and analyzed in ten agricultural drainage ditches in the arid region of China from 2011 to 2019. Spatially, water pollution in agricultural drainage ditches with small water quantity can be significantly exacerbated by urban sewage, whereas a large amount of agricultural drainage can effectively dilute the pollution of urban sewage. Severe soil salinization in the cropland increases the risk of water pollution due to easier losses of soil nutrient and organic matter. Soil salinization is a key factor in the crop distribution pattern based on the crop salt tolerance, and the maize/wheat field with a higher fertilizer application rate generally results in poorer drainage water quality. Temporally, for the agricultural drainage ditches, the monthly and annual COD, TP, TN, and NH4-N concentrations fluctuate inversely with drainage water quantity and are positively correlated with fertilizer application, among which the monthly COD concentration in drainage water has larger variation in severe salinized areas. There exist critical annual and monthly drainage amounts, above which the probabilities of higher concentrations of COD, TP, TN, and NH4-N reduce greatly.
英文关键词	Drainage ditch Water quality Irrigation district Spatiotemporal pattern Driving factors
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001088452900010
WOS关键词	AGRICULTURAL DRAINAGE ; STREAM WATER ; SOIL ; PHOSPHORUS ; RETENTION ; CHEMISTRY ; QUANTITY ; SALINITY ; NITROGEN ; SYSTEM
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/2XILL650/396295
推荐引用方式 GB/T 7714	Chen, Shuai,Xia, Yuhong,Wan, Heyang,et al. Spatiotemporal patterns and main driving factors of drainage water quality of an arid irrigation district with shallow groundwater table[J],2023.
APA	Chen, Shuai.,Xia, Yuhong.,Wan, Heyang.,Wang, Ruiping.,Lu, Yaoze.,...&Shang, Songhao.(2023).Spatiotemporal patterns and main driving factors of drainage water quality of an arid irrigation district with shallow groundwater table.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH.
MLA	Chen, Shuai,et al."Spatiotemporal patterns and main driving factors of drainage water quality of an arid irrigation district with shallow groundwater table".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2023).