Potential Evapotranspiration Reduction and Its Influence on Crop Yield in the North China Plain in 1961-2014

doi:10.1155/2020/3691421

	Potential Evapotranspiration Reduction and Its Influence on Crop Yield in the North China Plain in 1961-2014
	Dong, Wanlin 2,3; Li, Chao 4; Hu, Qi 1; Pan, Feifei 5; Bhandari, Jyoti 3; Sun, Zhigang 3,6
刊名	ADVANCES IN METEOROLOGY
	2020-03-16
卷号	2020 页码:10
ISSN号	1687-9309
DOI	10.1155/2020/3691421
通讯作者	Sun, Zhigang(sun.zhigang@igsnrr.ac.cn)
英文摘要	Climate change has caused uneven changes in hydrological processes (precipitation and evapotranspiration) on a space-temporal scale, which would influence climate types, eventually impact agricultural production. Based on data from 61 meteorological stations from 1961 to 2014 in the North China Plain (NCP), the spatiotemporal characteristics of climate variables, such as humidity index, precipitation, and potential evapotranspiration (ET0), were analyzed. The sensitivity coefficients and contribution rates were applied to ET0. The NCP has experienced a semiarid to humid climate from north to south due to the significant decline of ET0 (-13.8 mm decade(-1)). In the study region, 71.0% of the sites showed a "pan evaporation paradox" phenomenon. Relative humidity had the most negative influence on ET0, while wind speed, sunshine hours, and air temperature had a positive effect on ET0. Wind speed and sunshine hours contributed the most to the spatiotemporal variation of ET0, followed by relative humidity and air temperature. Overall, the key climate factor impacting ET0 was wind speed decline in the NCP, particularly in Beijing and Tianjin. The crop yield in Shandong and Henan provinces was higher than that in the other regions with a higher humidity index. The lower the humidity index in Hebei province, the lower the crop yield. Therefore, potential water shortages and water conflict should be considered in the future because of spatiotemporal humidity variations in the NCP.
资助项目	National Key Research and Development Program of China[2017YFC0503805] ; National Key Research and Development Program of China[2017YFD0300304]
WOS关键词	CLIMATE-CHANGE ; PENMAN-MONTEITH ; ARIDITY INDEX ; RIVER-BASIN ; WATER ; SENSITIVITY ; EVAPORATION ; VARIABLES ; EXTREMES ; DROUGHT
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	HINDAWI LTD
WOS记录号	WOS:000522886300001
资助机构	National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/133211]
专题	中国科学院地理科学与资源研究所
通讯作者	Sun, Zhigang
作者单位	1.China Agr Univ, Coll Resources & Environm Sci, Beijing 100193, Peoples R China 2.China Meteorol Adm Training Ctr, Beijing 100081, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 4.Mentougou Meteorol Serv, Beijing 102308, Peoples R China 5.Univ North Texas, Dept Geog, Denton, TX 76203 USA 6.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Dong, Wanlin,Li, Chao,Hu, Qi,et al. Potential Evapotranspiration Reduction and Its Influence on Crop Yield in the North China Plain in 1961-2014[J]. ADVANCES IN METEOROLOGY,2020,2020:10.
APA	Dong, Wanlin,Li, Chao,Hu, Qi,Pan, Feifei,Bhandari, Jyoti,&Sun, Zhigang.(2020).Potential Evapotranspiration Reduction and Its Influence on Crop Yield in the North China Plain in 1961-2014.ADVANCES IN METEOROLOGY,2020,10.
MLA	Dong, Wanlin,et al."Potential Evapotranspiration Reduction and Its Influence on Crop Yield in the North China Plain in 1961-2014".ADVANCES IN METEOROLOGY 2020(2020):10.