IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2012  > Vol9 No.6
Temporal and Spatial Variations of ET0 and Sensitivity Coefficients in Spring-summer in Eastern Agricultural Areas of Qinghai, China
ZHAO Lu; LIANG Chuan; CUI Ningbo; WEI Renjuan; YANG Haoxiang
Corresponding AuthorZHAO Lu
2012-12
Source PublicationJournal of Mountain Science
Volume9Issue:6Pages:817-826
AbstractReference crop evapotranspiration (ET0) is a key parameter to calculate crop water requirements. In the paper, ET0 during 1960-2005 was calculated with FAO-56 PM in eastern agricultural areas of Qinghai, China. Then the sensitivity coefficients of ET0 to meteorological variables were estimated through the nondimensional partial derivative in FAO-56 PM. Results show that the mean annual ET0 of the whole area is 904 mm, and ET0 portrays a very significant decrease during the 46 years. In spatial, ET0 decreases from southeast to northwest, firstly increases then decreases from southwest to northeast. Through sensitivity analysis, in spring the most sensitive variable is relative humidity, while in summer is temperature. The temperature, sunshine duration and wind speed sensitivity coefficients (S(TA), S(n), S(u)) are higher in middle areas as opposed to surrounding areas, while the relative humidity sensitivity coefficient (S(RH)) has an opposite distribution rule.
KeywordEt0 Fao-56 Pm Sensitivity Coefficients Eastern Agricultural Areas Of Qinghai
DOI10.1007/s11629-012-2343-4
Indexed BySCI
Language英语
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/5151
CollectionJournal of Mountain Science_Journal of Mountain Science-2012_Vol9 No.6
Corresponding AuthorZHAO Lu
Recommended Citation
GB/T 7714
ZHAO Lu,LIANG Chuan,CUI Ningbo,et al. Temporal and Spatial Variations of ET0 and Sensitivity Coefficients in Spring-summer in Eastern Agricultural Areas of Qinghai, China[J]. Journal of Mountain Science,2012,9(6):817-826.
APA ZHAO Lu,LIANG Chuan,CUI Ningbo,WEI Renjuan,&YANG Haoxiang.(2012).Temporal and Spatial Variations of ET0 and Sensitivity Coefficients in Spring-summer in Eastern Agricultural Areas of Qinghai, China.Journal of Mountain Science,9(6),817-826.
MLA ZHAO Lu,et al."Temporal and Spatial Variations of ET0 and Sensitivity Coefficients in Spring-summer in Eastern Agricultural Areas of Qinghai, China".Journal of Mountain Science 9.6(2012):817-826.
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