A field demonstration of groundwater vulnerability assessment using   transport modeling and groundwater age modeling, Beijing Plain, China

doi:10.1007/s12665-014-3769-5

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	A field demonstration of groundwater vulnerability assessment using transport modeling and groundwater age modeling, Beijing Plain, China
	Yu, Cheng ; Yao, Yingying ; Cao, Guoliang ; Zheng, Chunmiao
刊名	ENVIRONMENTAL EARTH SCIENCES
	2015
关键词	Beijing Plain Groundwater vulnerability Groundwater age Solute transport HYDRAULIC CONDUCTIVITY SUSTAINABILITY SYSTEM SOILS
DOI	10.1007/s12665-014-3769-5
英文摘要	Groundwater vulnerability is often regarded as the resistance of aquifers to pollutions, which is in fact the groundwater environment vulnerability. Similarly the renewable capacity of groundwater system can be regarded as the indicator for groundwater resources vulnerability. In this paper, the concept of groundwater vulnerability is extended to include both the groundwater environment vulnerability and groundwater resources vulnerability, and the extended overall groundwater vulnerability is assessed by examining the solute transport process from ground surface to the water table (for groundwater environment vulnerability), and evaluating the renewable capacity of groundwater system (for groundwater resources vulnerability). For this case study in Beijing Plain, a 1D-modeling, 2D-mapping model is constructed in HYDRUS to simulate the solute transport process through vadose zone. The transit times and solute concentrations at the water table are selected as the indicators for groundwater environment vulnerability. Meanwhile, a 3D groundwater age model in MODFLOW/MT3DMS is employed to model the age distribution in saturated zone, and the modeled ages are taken as the indicators for groundwater resources vulnerability. These two models are coupled together by exchanging their vertical infiltrations and water table elevations. Overall vulnerability is finally assessed by taking all the indicators into account. The result suggests the overall vulnerability can finely represent the synthetic impact of solute transport characteristics (groundwater environment vulnerability in vadose zone) and groundwater system renewability (groundwater resources vulnerability in saturated zone). The most vulnerable regions of Beijing Plain are mostly in agricultural areas, the medium vulnerable areas mostly appear at pumping sites, and the least vulnerable areas are mostly distributed in recharge regions.; National Natural Science Foundation of China (NSFC) [51409028]; innovation team building program for universities in Chongqing [KJTD201305]; SCI(E); EI; ARTICLE; beimingyu@gmail.com; 9; 5245-5253; 73
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/420370]
专题	工学院
推荐引用方式 GB/T 7714	Yu, Cheng,Yao, Yingying,Cao, Guoliang,et al. A field demonstration of groundwater vulnerability assessment using transport modeling and groundwater age modeling, Beijing Plain, China[J]. ENVIRONMENTAL EARTH SCIENCES,2015.
APA	Yu, Cheng,Yao, Yingying,Cao, Guoliang,&Zheng, Chunmiao.(2015).A field demonstration of groundwater vulnerability assessment using transport modeling and groundwater age modeling, Beijing Plain, China.ENVIRONMENTAL EARTH SCIENCES.
MLA	Yu, Cheng,et al."A field demonstration of groundwater vulnerability assessment using transport modeling and groundwater age modeling, Beijing Plain, China".ENVIRONMENTAL EARTH SCIENCES (2015).