Deterioration of groundwater quality along an increasing intensive land use pattern in a small catchment

doi:10.1016/j.agwat.2021.106953

	Deterioration of groundwater quality along an increasing intensive land use pattern in a small catchment
	Gao, Jingbo 1,2; Li, Zhiqin 1,2; Chen, Zhujun 1,2; Zhou, Yang 3,4; Liu, Weiguo 5; Wang, Lei 6; Zhou, Jianbin 1,2
刊名	AGRICULTURAL WATER MANAGEMENT
	2021-07-01
卷号	253 页码:10
关键词	Land use Groundwater quality Nitrate Major ions Stable isotopes
ISSN号	0378-3774
DOI	10.1016/j.agwat.2021.106953
通讯作者	Zhou, Jianbin(jbzhou@nwsuaf.edu.cn)
英文摘要	Land use change has greatly influenced groundwater quality worldwide. Identifying the effects of different intensive land uses on the groundwater quality is the first step in taking proper action to solve the problem. In this study, we compared the effects of different intensive land uses (region A, natural vegetation; region B, cereal fields; region C, kiwifruit orchards) in the Yujiahe catchment between 2015 and 2017 in Shaanxi, China, on the major ions and stable isotopes of nitrate (815N-NO3- and 818O-NO3-). The NO3 - groundwater concentrations increased from region A to region B and region C; NO3- concentrations in shallow groundwater were higher than those of deep groundwater in region C (55.3 vs. 28.9 mg/L, respectively). The NO3 - concentrations in region A and region B did not exceed the WHO standard of 50 mg/L. However, 56.3% and 22.2% of the shallow and deep groundwater samples have NO3 - concentrations exceeding the standard in region C, respectively. The average electrical conductivity (EC) values of springs in region A and shallow groundwater in regions B and C were 438, 525, and 753 mu s/cm, respectively. Concentrations of Ca2+, Mg2+, Na+, Cl-, and HCO3- ions and nitrogen isotope values increased from region A to region C, indicating that intensive land use change has modified groundwater hydrochemical composition, and deteriorated groundwater quality. This study has highlighted the significant effect of intensive land use of orchards at the small catchment scale on the groundwater quality.
资助项目	National Key R&D Program of China[2017YFD0200106] ; National Natural Science Foundation of China[41671295] ; Defra ; Ministry of Agriculture of China under the Sustainable Agriculture Innovation Network (SAIN) ; 111 Project[B12007]
WOS关键词	MULTIVARIATE STATISTICAL-ANALYSIS ; NITRATE CONTAMINATION ; ISOTOPE APPROACH ; SOURCE APPORTIONMENT ; NITROGEN ; ACCUMULATION ; WATER ; CHINA ; POLLUTION ; AQUIFER
WOS研究方向	Agriculture ; Water Resources
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000657165400003
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; Defra ; Ministry of Agriculture of China under the Sustainable Agriculture Innovation Network (SAIN) ; 111 Project
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/16798]
专题	地球环境研究所_加速器质谱中心
通讯作者	Zhou, Jianbin
作者单位	1.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China 2.MOA, Key Lab Plant Nutr & Agrienvironm Northwest China, Yangling 712100, Shaanxi, Peoples R China 3.Shaanxi Inst Geol Survey, Xian 710054, Peoples R China 4.Shaanxi Geol Survey Ctr Hydrogeol Engn Geol & Env, Xian 710068, Peoples R China 5.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Peoples R China 6.British Geol Survey, Nottingham NG12 5GG, Notts, England
推荐引用方式 GB/T 7714	Gao, Jingbo,Li, Zhiqin,Chen, Zhujun,et al. Deterioration of groundwater quality along an increasing intensive land use pattern in a small catchment[J]. AGRICULTURAL WATER MANAGEMENT,2021,253:10.
APA	Gao, Jingbo.,Li, Zhiqin.,Chen, Zhujun.,Zhou, Yang.,Liu, Weiguo.,...&Zhou, Jianbin.(2021).Deterioration of groundwater quality along an increasing intensive land use pattern in a small catchment.AGRICULTURAL WATER MANAGEMENT,253,10.
MLA	Gao, Jingbo,et al."Deterioration of groundwater quality along an increasing intensive land use pattern in a small catchment".AGRICULTURAL WATER MANAGEMENT 253(2021):10.