IGSNRR OpenIR
Regional Variability of Agriculturally-Derived Nitrate-Nitrogen in Shallow Groundwater in China, 2004-2014
Li, Jing1,2; He, Zhibin1; Du, Jun1; Zhao, Liwen1; Chen, Longfei1; Zhu, Xi1,2; Lin, Pengfei1,2; Fang, Shu1,2; Zhao, Minmin1,2; Tian, Quanyan1,2
2018-05-01
Source PublicationSUSTAINABILITY
ISSN2071-1050
Volume10Issue:5Pages:13
Corresponding AuthorHe, Zhibin(hzbmail@lzb.ac.cn)
AbstractIncreasing diffuse nitrate loading of groundwater has long been a major environmental and health concern in China, but little is known about the spatial and temporal variability of nitrate concentrations in groundwater at regional scales. The aim of this study was to assess the spatial distribution and variation of nitrate-nitrogen (NO3--N) concentrations in groundwater. We used groundwater quality monitoring data and soil physical characteristics from 21 agro-ecosystems in China for years 2004 to 2014. The results indicated that NO3--N concentrations were highly variable in shallow groundwater across the landscape. Over the study period, most of the NO3--N concentrations were below the World Health Organization permissible limit for drinking water (<10 mg N center dot L). NO3--N concentrations in groundwater neither significantly increased nor decreased in most agro-ecosystems, but fluctuated with seasons. In addition, groundwater NO3--N under purple soil (6.81 mg center dot L-1) and Aeolian sandy soil (6.02 mg center dot L-1) were significantly higher (p < 0.05) than that under other soil types, and it was medium-high (4.49 mg center dot L-1) under aquic cinnamon soil. Elevated nitrate concentrations occurred mainly in oasis agricultural areas of northwestern China, where farmlands with coarse-textured soils use flood irrigation. Therefore, arid and semi-arid areas are expected to sustain high NO3--N concentrations in groundwater. Mitigation strategies can prevent this problem, and include control of N fertilizer input, balanced fertilization, proper rotation system, adoption of improved irrigation methods, and establishment of environmental policies.
Keywordshallow groundwater agro-ecosystems NO3--N concentration China
DOI10.3390/su10051393
WOS KeywordRESEARCH NETWORK CERN ; HEIHE RIVER-BASIN ; LONG-TERM FATE ; NORTHERN CHINA ; POLLUTION ; WATER ; ACCUMULATION ; FERTILIZER ; QUALITY ; IMPACT
Indexed BySCI
Language英语
Funding Projectnational key research and development program of China[2017YFC0504306] ; Major Program of National Natural Science Foundation of China[41630861] ; National Natural Science Foundation of China[41501044] ; CAS Light of West China Program
Funding Organizationnational key research and development program of China ; Major Program of National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS Light of West China Program
WOS Research AreaScience & Technology - Other Topics ; Environmental Sciences & Ecology
WOS SubjectGREEN & SUSTAINABLE SCIENCE & TECHNOLOGY ; Environmental Sciences ; Environmental Studies
WOS IDWOS:000435587100089
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/54632
Collection中国科学院地理科学与资源研究所
Corresponding AuthorHe, Zhibin
Affiliation1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Chinese Ecosyst Res Network,Linze Inland River Ba, Lanzhou 730000, Gansu, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Jing,He, Zhibin,Du, Jun,et al. Regional Variability of Agriculturally-Derived Nitrate-Nitrogen in Shallow Groundwater in China, 2004-2014[J]. SUSTAINABILITY,2018,10(5):13.
APA Li, Jing.,He, Zhibin.,Du, Jun.,Zhao, Liwen.,Chen, Longfei.,...&Tian, Quanyan.(2018).Regional Variability of Agriculturally-Derived Nitrate-Nitrogen in Shallow Groundwater in China, 2004-2014.SUSTAINABILITY,10(5),13.
MLA Li, Jing,et al."Regional Variability of Agriculturally-Derived Nitrate-Nitrogen in Shallow Groundwater in China, 2004-2014".SUSTAINABILITY 10.5(2018):13.
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