Oasis Irrigation-Induced Hydro-Climatic Effects: A Case Study in the Hyper-Arid Region of Northwest China
The response of potential evapotranspiration (ET0) to widespread irrigation is important to fully understand future regional climate changes and to infer adaptive management of agricultural water resources. The quantitative impact of irrigation on ET0 from 1960 to 2013 was evaluated using historical...
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doaj-0dc93824859d4e39abc79e2fb1669f272020-11-24T23:31:39ZengMDPI AGAtmosphere2073-44332018-04-019414210.3390/atmos9040142atmos9040142Oasis Irrigation-Induced Hydro-Climatic Effects: A Case Study in the Hyper-Arid Region of Northwest ChinaNan Shan0Zhongjie Shi1Xiaohui Yang2Hao Guo3Xiao Zhang4Zhiyong Zhang5Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, International Institute for Earth System Sciences, Nanjing University, Nanjing 210023, ChinaInstitute of Desertification Studies, Chinese Academy of Forestry, Beijing 100091, ChinaInstitute of Desertification Studies, Chinese Academy of Forestry, Beijing 100091, ChinaInstitute of Desertification Studies, Chinese Academy of Forestry, Beijing 100091, ChinaInstitute of Desertification Studies, Chinese Academy of Forestry, Beijing 100091, ChinaResearch Institute of Forestry Policy and Information, Chinese Academy of Forestry, Beijing 100091, ChinaThe response of potential evapotranspiration (ET0) to widespread irrigation is important to fully understand future regional climate changes and to infer adaptive management of agricultural water resources. The quantitative impact of irrigation on ET0 from 1960 to 2013 was evaluated using historical time series data of daily meteorological observations in the hyper-arid region of northwest China. The decreasing trends in ET0 were accelerated for meteorological stations in regions with oasis agriculture, especially in the summer and during the growing season. Irrigation led to a cooling effect on temperature, increased relative humidity and precipitation. All of these changes contributed to a larger decrease of ET0 trend. The findings of this study advance our insight into the effects of irrigation on dynamics in ET0 and meteorological factors. Further investigations to understand how ET0 responds to climate change and agricultural irrigation could provide guidance for determining effective measures of water resources for adapting to global change.http://www.mdpi.com/2073-4433/9/4/142irrigationclimate effectpotential evapotranspirationtrendhyper-arid region of China |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Nan Shan Zhongjie Shi Xiaohui Yang Hao Guo Xiao Zhang Zhiyong Zhang |
spellingShingle |
Nan Shan Zhongjie Shi Xiaohui Yang Hao Guo Xiao Zhang Zhiyong Zhang Oasis Irrigation-Induced Hydro-Climatic Effects: A Case Study in the Hyper-Arid Region of Northwest China Atmosphere irrigation climate effect potential evapotranspiration trend hyper-arid region of China |
author_facet |
Nan Shan Zhongjie Shi Xiaohui Yang Hao Guo Xiao Zhang Zhiyong Zhang |
author_sort |
Nan Shan |
title |
Oasis Irrigation-Induced Hydro-Climatic Effects: A Case Study in the Hyper-Arid Region of Northwest China |
title_short |
Oasis Irrigation-Induced Hydro-Climatic Effects: A Case Study in the Hyper-Arid Region of Northwest China |
title_full |
Oasis Irrigation-Induced Hydro-Climatic Effects: A Case Study in the Hyper-Arid Region of Northwest China |
title_fullStr |
Oasis Irrigation-Induced Hydro-Climatic Effects: A Case Study in the Hyper-Arid Region of Northwest China |
title_full_unstemmed |
Oasis Irrigation-Induced Hydro-Climatic Effects: A Case Study in the Hyper-Arid Region of Northwest China |
title_sort |
oasis irrigation-induced hydro-climatic effects: a case study in the hyper-arid region of northwest china |
publisher |
MDPI AG |
series |
Atmosphere |
issn |
2073-4433 |
publishDate |
2018-04-01 |
description |
The response of potential evapotranspiration (ET0) to widespread irrigation is important to fully understand future regional climate changes and to infer adaptive management of agricultural water resources. The quantitative impact of irrigation on ET0 from 1960 to 2013 was evaluated using historical time series data of daily meteorological observations in the hyper-arid region of northwest China. The decreasing trends in ET0 were accelerated for meteorological stations in regions with oasis agriculture, especially in the summer and during the growing season. Irrigation led to a cooling effect on temperature, increased relative humidity and precipitation. All of these changes contributed to a larger decrease of ET0 trend. The findings of this study advance our insight into the effects of irrigation on dynamics in ET0 and meteorological factors. Further investigations to understand how ET0 responds to climate change and agricultural irrigation could provide guidance for determining effective measures of water resources for adapting to global change. |
topic |
irrigation climate effect potential evapotranspiration trend hyper-arid region of China |
url |
http://www.mdpi.com/2073-4433/9/4/142 |
work_keys_str_mv |
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