文献类型：期刊文献

英文题名：Oasis Irrigation-Induced Hydro-Climatic Effects: A Case Study in the Hyper-Arid Region of Northwest China

作者：Shan, Nan[1] Shi, Zhongjie[2] Yang, Xiaohui[2] Guo, Hao[2] Zhang, Xiao[2] Zhang, Zhiyong[3]

第一作者：Shan, Nan

通信作者：Shi, ZJ[1];Yang, XH[1]|[a0005d302b743c401205f]杨晓晖;

机构：[1]Nanjing Univ, Jiangsu Prov Key Lab Geog Informat Sci & Technol, Int Inst Earth Syst Sci, Nanjing 210023, Jiangsu, Peoples R China;[2]Chinese Acad Forestry, Inst Desertificat Studies, Beijing 100091, Peoples R China;[3]Chinese Acad Forestry, Res Inst Forestry Policy & Informat, Beijing 100091, Peoples R China

年份：2018

卷号：9

期号：4

外文期刊名：ATMOSPHERE

收录：;EI(收录号：20181605023979);Scopus(收录号：2-s2.0-85045335705);WOS:【SCI-EXPANDED(收录号:WOS:000435178000028)】；

基金：This research is supported by Fundamental Research Funds of CAF (CAFYBB2017ZA006), the International Science & Technology Cooperation Program of China (2015DFR31130), National key research and development program of China (2016YFC0500908; 2016YFC0500801; 2016YFC0500804) and the National Natural Science Foundation of China (31670715; 41471029; 41371500). We also thank the ESA CCI Land Cover project for data supporting.

语种：英文

外文关键词：irrigation; climate effect; potential evapotranspiration; trend; hyper-arid region of China

摘要：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.