中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地理科学与资源研究所
  3. 中国科学院地理科学与资源研究所
Irrigation-Induced Potential Evapotranspiration Decrease in the Heihe River Basin, Northwest China, as Simulated by the WRF Model

文献类型：期刊论文

作者Zhang, Xuezhen1,2; Ding, Nana3; Han, Songjun4; Tang, Qiuhong2,5
刊名JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
出版日期2020-01-27
卷号125期号:2页码:15
ISSN号2169-897X
DOI10.1029/2019JD031058
通讯作者Zhang, Xuezhen(xzzhang@igsnrr.ac.cn)
英文摘要Evapotranspiration occurs via land-atmosphere coupling. To understand the impacts of irrigation on local potential evapotranspiration, we carried out a couple of simulations with the Weather Research and Forecast (WRF) model, where an irrigation scheme was incorporated, for the irrigated area in the middle reaches of the Heihe River, Northwest China. By comparing the irrigation simulation (hereafter, the IRRG case) with the simulation excluding irrigation (hereafter, the NATU case), we found that irrigation may lead to a decrease in reference evapotranspiration (ET0) during the growing season (May to September), which is a metric of potential evapotranspiration, by approximately 1.05 mm d(-1), accounting for approximately 19% of NATU ET0. The ET0 in the IRRG is closer to the ground measurements than the NATU ET0, with a root-mean-square error of 0.75 mm d(-1) in the IRRG and 1.86 mm d(-1) in the NATU cases. Meanwhile, irrigation leads to an actual evapotranspiration (ETa) increase of approximately 2.1 mm d(-1) for croplands. Such an asymmetric relationship between ET0 decrease and ETa increase was found over the irrigated croplands. The ET0 decrease was mainly induced by the moistening and cooling effects of irrigation through intensified evapotranspiration and reduced sensible heat. This study highlights the importance of considering land-atmosphere coupling when assessing the impacts of climatic change on irrigation water requirements.
WOS关键词COMPLEMENTARY RELATIONSHIP ; TYPICAL ECOSYSTEMS ; CLIMATE ; EVAPORATION
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDA20020202] ; National Natural Science Foundation of China[41790424] ; National Natural Science Foundation of China[51579249] ; CAS[ZDRW-ZS-2017-4] ; CAS[QYZDBSSW-DQC005] ; Youth Innovation Promotion Association of CAS[2015038]
WOS研究方向Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000521080000019
出版者AMER GEOPHYSICAL UNION
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; CAS ; Youth Innovation Promotion Association of CAS
源URL[http://ir.igsnrr.ac.cn/handle/311030/133613]  
专题中国科学院地理科学与资源研究所
通讯作者Zhang, Xuezhen
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
3.Jiangshu Normal Univ, Sch Geog Geomat & Planning, Xuzhou, Jiangsu, Peoples R China
4.China Inst Water Resources & Hydropower Res, State Key Lab Simulat & Regulat Water Cycle River, Beijing, Peoples R China
5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Xuezhen,Ding, Nana,Han, Songjun,et al. Irrigation-Induced Potential Evapotranspiration Decrease in the Heihe River Basin, Northwest China, as Simulated by the WRF Model[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2020,125(2):15.
APA Zhang, Xuezhen,Ding, Nana,Han, Songjun,&Tang, Qiuhong.(2020).Irrigation-Induced Potential Evapotranspiration Decrease in the Heihe River Basin, Northwest China, as Simulated by the WRF Model.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,125(2),15.
MLA Zhang, Xuezhen,et al."Irrigation-Induced Potential Evapotranspiration Decrease in the Heihe River Basin, Northwest China, as Simulated by the WRF Model".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 125.2(2020):15.

入库方式： OAI收割

来源：地理科学与资源研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。