IGSNRR OpenIR
Effects of rainfall intensity on groundwater recharge based on simulated rainfall experiments and a groundwater flow model
Wang, Hong1,5; Gao, Jian En1,2,3; Zhang, Meng-jie3; Li, Xing-hua4; Zhang, Shao-long4; Jia, Li-zhi1,5
2015-04-01
Source PublicationCATENA
Volume127Pages:80-91
AbstractIt is important that groundwater discharges sustain baseflow to rivers for the ecological basic flow protection. The objective of this study was to assess the impact of rainfall intensity on groundwater regime under the bare slope condition. A three-dimensional finite-difference groundwater flow model (MODFLOW) was constructed and calibrated and combined with simulated rainfall experiments to study this impact. Groundwater recharge coefficients for different rainfall intensities with a constant amount of rainfall (120 mm) were calculated by using PEST-ASP program of MODFLOW. The values decreased from 0.439 to 0345, 0327, 0.167, 0.138, 0.076 with rainfall intensities increasing from 45 mm/h to 60/75/90/105/120 mm/h respectively; recharge coefficients were described by a negative linear relationship. The simulated scenarios indicated decreases in both recharge volumes and the hydraulic head coincided with increases in rainfall intensities, while recharge rates and runoff of groundwater increased with modest intensities (<= 75 mm/h) increasing and decreased when intensities became larger (>75 mm/h). Though recharge rate and runoff for different rainfall intensities did not approach a common value, but instead stabilized at different values for each rainfall intensity event. It was concluded that rainfall intensity has great influence on groundwater regime. These are of great importance in ecological basic flow protection, river harnessing and watershed management in some extent. (C) 2014 Elsevier B.V. All rights reserved.
SubtypeArticle
KeywordModflow Rainfall Intensity Recharge Coefficient Rainfall Experiments
WOS HeadingsScience & Technology ; Physical Sciences ; Life Sciences & Biomedicine
WOS Subject ExtendedGeology ; Agriculture ; Water Resources
WOS KeywordKINETIC-ENERGY RELATIONSHIPS ; SOIL-WATER CONTENT ; LAND-USE ; INFILTRATION-RATE ; CRUST FORMATION ; SURFACE RUNOFF ; STEADY-STATE ; SANDY SOILS ; CHINA ; IMPACTS
Indexed BySCI
Language英语
WOS SubjectGeosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS IDWOS:000349877800010
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/68500
Collection中国科学院地理科学与资源研究所
Corresponding AuthorGao, Jian En
Affiliation1.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling, Shaanxi Provinc, Peoples R China
2.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling, Shaanxi Provinc, Peoples R China
3.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling, Shaanxi Provinc, Peoples R China
4.Northwest A&F Univ, Coll Water Resources & Architectural Engn, Yangling, Shaanxi Provinc, Peoples R China
5.Univ Chinese Acad Sci, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Wang, Hong,Gao, Jian En,Zhang, Meng-jie,et al. Effects of rainfall intensity on groundwater recharge based on simulated rainfall experiments and a groundwater flow model[J]. CATENA,2015,127:80-91.
APA Wang, Hong,Gao, Jian En,Zhang, Meng-jie,Li, Xing-hua,Zhang, Shao-long,&Jia, Li-zhi.(2015).Effects of rainfall intensity on groundwater recharge based on simulated rainfall experiments and a groundwater flow model.CATENA,127,80-91.
MLA Wang, Hong,et al."Effects of rainfall intensity on groundwater recharge based on simulated rainfall experiments and a groundwater flow model".CATENA 127(2015):80-91.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, Hong]'s Articles
[Gao, Jian En]'s Articles
[Zhang, Meng-jie]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Hong]'s Articles
[Gao, Jian En]'s Articles
[Zhang, Meng-jie]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Hong]'s Articles
[Gao, Jian En]'s Articles
[Zhang, Meng-jie]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.