IGSNRR OpenIR  > 研究生部
Modeling the Effects of Groundwater-Fed Irrigation on Terrestrial Hydrology over the Conterminous United States
Leng, Guoyong(冷国勇); Huang, Maoyi; Tang, Qiuhong; Gao, Huilin; Leung, L. Ruby
2014
Source PublicationJOURNAL OF HYDROMETEOROLOGY
Volume15Issue:3Pages:957-972
Corresponding AuthorHuang, MY
Abstract

Human alteration of the land surface hydrologic cycle is substantial. Recent studies suggest that local water management practices including groundwater pumping and irrigation could significantly alter the quantity and distribution of water in the terrestrial system, with potential impacts on weather and climate through land atmosphere feedbacks. In this study, the authors incorporated a groundwater withdrawal scheme into the Community Land Model, version 4 (CLM4). To simulate the impact of irrigation realistically, they calibrated the CLM4 simulated irrigation amount against observations from agriculture censuses at the county scale over the conterminous United States. The water used for irrigation was then removed from the surface runoff and groundwater aquifer according to a ratio determined from the county-level agricultural census data. On the basis of the simulations, the impact of groundwater withdrawals for irrigation on land surface and subsurface fluxes were investigated. The results suggest that the impacts of irrigation on latent heat flux and potential recharge when water is withdrawn from surface water alone or from both surface and groundwater are comparable and local to the irrigation areas. However, when water is withdrawn from groundwater for irrigation, greater effects on the subsurface water balance are found, leading to significant depletion of groundwater storage in regions with low recharge rate and high groundwater exploitation rate. The results underscore the importance of local hydrologic feedbacks in governing hydrologic response to anthropogenic change in CLM4 and the need to more realistically simulate the two-way interactions among surface water, groundwater, and atmosphere to better understand the impacts of groundwater pumping on irrigation efficiency and climate.

Indexed BySCI
Funding OrganizationIntegrated Earth System Modeling (iESM) project - Department of Energy Earth System Modeling and Integrated Assessment Research programs;U.S. Department of Energy DE-AC05-76RLO1830;National Natural Science Foundation of China 41171031;National Basic Research Program of China 2012CB955403
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/28967
Collection研究生部
Recommended Citation
GB/T 7714
Leng, Guoyong,Huang, Maoyi,Tang, Qiuhong,et al. Modeling the Effects of Groundwater-Fed Irrigation on Terrestrial Hydrology over the Conterminous United States[J]. JOURNAL OF HYDROMETEOROLOGY,2014,15(3):957-972.
APA Leng, Guoyong,Huang, Maoyi,Tang, Qiuhong,Gao, Huilin,&Leung, L. Ruby.(2014).Modeling the Effects of Groundwater-Fed Irrigation on Terrestrial Hydrology over the Conterminous United States.JOURNAL OF HYDROMETEOROLOGY,15(3),957-972.
MLA Leng, Guoyong,et al."Modeling the Effects of Groundwater-Fed Irrigation on Terrestrial Hydrology over the Conterminous United States".JOURNAL OF HYDROMETEOROLOGY 15.3(2014):957-972.
Files in This Item: Download All
File Name/Size DocType Version Access License
冷国勇(SCI).pdf(2955KB) 开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Leng, Guoyong(冷国勇)]'s Articles
[Huang, Maoyi]'s Articles
[Tang, Qiuhong]'s Articles
Baidu academic
Similar articles in Baidu academic
[Leng, Guoyong(冷国勇)]'s Articles
[Huang, Maoyi]'s Articles
[Tang, Qiuhong]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Leng, Guoyong(冷国勇)]'s Articles
[Huang, Maoyi]'s Articles
[Tang, Qiuhong]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 冷国勇(SCI).pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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