Spatiotemporal Characteristics of Reference Evapotranspiration and Its Sensitivity Coefficients to Climate Factors in Huang-Huai-Hai Plain, China

doi:10.1016/S2095-3119(13)60561-4

CORC > 中国农业科学院 > 农业环境与可持续发展研究所 > 气候变化研究室

	Spatiotemporal Characteristics of Reference Evapotranspiration and Its Sensitivity Coefficients to Climate Factors in Huang-Huai-Hai Plain, China
	Yang Jian-ying 1,2,3; Liu Qin 1,2,3; Mei Xu-rong 1,2,3; Yan Chang-rong 1,2,3; Ju Hui 1,4; Xu Jian-wen 1,4
刊名	JOURNAL OF INTEGRATIVE AGRICULTURE
	2013
卷号	12 期号:12 页码:2280-2291
关键词	ET0 spatial distribution temporal trends sensitivity coefficient 3H plain
ISSN号	2095-3119
DOI	10.1016/S2095-3119(13)60561-4
通讯作者	Yang Jian-ying
英文摘要	Climate change will have important implications in water shore regions, such as Huang-Huai-Hai (3H) plain, where expected warmer and drier conditions might augment crop water demand. Sensitivity analysis is important in understanding the relative importance of climatic variables to the variation in reference evapotranspiration (ET0). In this study, the 51-yr ET0 during winter wheat and summer maize growing season were calculated from a data set of daily climate variables in 40 meteorological stations. Sensitivity maps for key climate variables were estimated according to Kriging method and the spatial pattern of sensitivity coefficients for these key variables was plotted. In addition, the slopes of the linear regression lines for sensitivity coefficients were obtained: Results showed that ET0 during winter wheat growing season accounted for the largest proportion of annual ET0 due to its long phenological days, while ET0 was detected to decrease significantly with the magnitude of 0.5 mm yr(-1) in summer maize growing season. Solar radiation is considered to be the most sensitive and primarily controlling variable for negative trend in ET0 for summer maize season, and higher sensitive coefficient value of ET0 to solar radiation and temperature were detected in east part and southwest part of 311 plain respectively. Relative humidity was demonstrated as the most sensitive factor for ET0 in winter wheat growing season and declining relativity humidity also primarily controlled a negative trend in ET0, furthermore the sensitivity coefficient to relative humidity increased from west to southeast. The eight sensitivity centrals were all found located in Shandong Province. These ET0 along with its sensitivity maps under winter wheat-summer maize rotation system can be applied to predict the agricultural water demand and will assist water resources planning and management for this region.
学科主题	Agriculture, Multidisciplinary ; AGRICULTURE, MULTIDISCIPLINARY
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000328805300019
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/19868]
专题	农业环境与可持续发展研究所_气候变化研究室
作者单位	1.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China 2.Minist Agr, State Engn Lab Efficient Water Use & Disaster Red, Beijing 100081, Peoples R China 3.Minist Agr, Key Lab Dryland Agr, Beijing 100081, Peoples R China 4.Minist Agr, Key Lab Agr Environm, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Yang Jian-ying,Liu Qin,Mei Xu-rong,et al. Spatiotemporal Characteristics of Reference Evapotranspiration and Its Sensitivity Coefficients to Climate Factors in Huang-Huai-Hai Plain, China[J]. JOURNAL OF INTEGRATIVE AGRICULTURE,2013,12(12):2280-2291.
APA	Yang Jian-ying,Liu Qin,Mei Xu-rong,Yan Chang-rong,Ju Hui,&Xu Jian-wen.(2013).Spatiotemporal Characteristics of Reference Evapotranspiration and Its Sensitivity Coefficients to Climate Factors in Huang-Huai-Hai Plain, China.JOURNAL OF INTEGRATIVE AGRICULTURE,12(12),2280-2291.
MLA	Yang Jian-ying,et al."Spatiotemporal Characteristics of Reference Evapotranspiration and Its Sensitivity Coefficients to Climate Factors in Huang-Huai-Hai Plain, China".JOURNAL OF INTEGRATIVE AGRICULTURE 12.12(2013):2280-2291.