Effects of rainfall intensity on groundwater recharge based on simulated rainfall experiments and a groundwater flow model
文献类型：期刊论文
| 作者 | Wang, Hong1,5; Gao, Jian En1,2,3; Zhang, Meng-jie3; Li, Xing-hua4; Zhang, Shao-long4; Jia, Li-zhi1,5 |
| 刊名 | CATENA
 |
| 出版日期 | 2015-04-01 |
| 卷号 | 127页码:80-91 |
| 关键词 | Modflow Rainfall Intensity Recharge Coefficient Rainfall Experiments |
| 文献子类 | Article |
| 英文摘要 | It 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. |
| WOS关键词 | KINETIC-ENERGY RELATIONSHIPS ; SOIL-WATER CONTENT ; LAND-USE ; INFILTRATION-RATE ; CRUST FORMATION ; SURFACE RUNOFF ; STEADY-STATE ; SANDY SOILS ; CHINA ; IMPACTS |
| 语种 | 英语 |
| WOS记录号 | WOS:000349877800010 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/68499]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Gao, Jian En |
| 作者单位 | 1.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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：地理科学与资源研究所
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