中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Modeling fertilization impacts on nitrate leaching and groundwater contamination with HYDRUS-1D and MT3DMS

文献类型:期刊论文

作者Zhang Han1; Yang Ruxing2; Guo Shanshan3; Li Qiling1
刊名PADDY AND WATER ENVIRONMENT
出版日期2020
页码DOI: 10.1007/s10333-020-00796-6
关键词Nitrate leaching Fertilization Groundwater contamination HYDRUS Modeling
ISSN号1611-2490
DOI10.1007/s10333-020-00796-6
产权排序2
通讯作者Zhang, Han(zhanghan@home.swjtu.edu.cn)
文献子类Article;Early Access
英文摘要Agriculture is recognized as the major source of groundwater nitrate (NO3-) contamination; yet quantifying its effects is still challenging in large, due to the difficulty to track the transformation and fates of agricultural nitrogen (N) in soils and aquifers. In this study, a HYDRUS-1D model was adopted to explore water content and NO3- distribution in the unsaturated zone above groundwater table in an agricultural area. The resulting estimates of water flux and NO3- leaching through the unsaturated zone were used as input data in the application of the groundwater flow model Visual MODFLOW and mass transport model MT3DMS via a concentration recharge boundary. Nitrate leaching occurred mainly between May and September, accounting for 64% of the annual total. Four fertilizer application scenarios were developed, and their effects were compared in predictive simulations of groundwater NO3- concentrations using MT3DMS and quantitative analysis of NO3--contaminated areas, the spatial and temporal distribution of groundwater NO3- concentration using ArcGIS. Predictions in the business as usual (scenario 1) showed that NO3- continued to accumulate in groundwater in the study area, with the maximum increased from 14 to 18 mg L-1 in 10 years. In the scenario 2 (2% increase in fertilizer application rate), peak groundwater NO3- was expected to exceed 20 mg L-1 in 2027. However, in both scenarios 3 (2% reduction in fertilizer application) and 4 (4% reduction in fertilization), the maximal NO3- concentrations were predicted to be lower than 12 mg L-1 in 2027. The integration of HYDRUS-1D, MT3DMS and GIS models offers a powerful tool for evaluating agricultural management impacts on aquifer water quality.
电子版国际标准刊号1611-2504
WOS关键词ZONE TIME-LAG ; LAND-USE ; UNSATURATED ZONE ; NITROGEN-FERTILIZATION ; DIFFERENT IRRIGATION ; AGRICULTURAL LAND ; CROPPING SYSTEMS ; WATER-TABLE ; SANDY SOIL ; TRANSPORT
资助项目National Natural Science Foundation of China[51979237] ; Sichuan Province Science and Technology Support Program, China[19YYJC0695]
WOS研究方向Agriculture
语种英语
WOS记录号WOS:000520815400001
出版者SPRINGER HEIDELBERG
资助机构National Natural Science Foundation of China ; Sichuan Province Science and Technology Support Program, China
源URL[http://ir.imde.ac.cn/handle/131551/34124]  
专题中国科学院水利部成都山地灾害与环境研究所
通讯作者Zhang Han
作者单位1.Southwest Jiaotong Univ, Faulty Geosci & Environm Engn, Chengdu 610031, Peoples R China;
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China;
3.Sichuan Univ, Coll Architecture & Environm, Chengdu 610065, Peoples R China
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GB/T 7714
Zhang Han,Yang Ruxing,Guo Shanshan,et al. Modeling fertilization impacts on nitrate leaching and groundwater contamination with HYDRUS-1D and MT3DMS[J]. PADDY AND WATER ENVIRONMENT,2020:DOI: 10.1007/s10333-020-00796-6.
APA Zhang Han,Yang Ruxing,Guo Shanshan,&Li Qiling.(2020).Modeling fertilization impacts on nitrate leaching and groundwater contamination with HYDRUS-1D and MT3DMS.PADDY AND WATER ENVIRONMENT,DOI: 10.1007/s10333-020-00796-6.
MLA Zhang Han,et al."Modeling fertilization impacts on nitrate leaching and groundwater contamination with HYDRUS-1D and MT3DMS".PADDY AND WATER ENVIRONMENT (2020):DOI: 10.1007/s10333-020-00796-6.

入库方式: OAI收割

来源:成都山地灾害与环境研究所

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