Spatial distribution and temporal trends in potential evapotranspiration over He

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Spatial distribution and temporal trends in potential evapotranspiration over Hengduan Mountains region from 1960 to 2009水利论文?%F"q[A0qvH"Q

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Abstract:

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&E0_!R9AHU8j"@ q0Based on the meteorological data of 20 stations in the Hengduan Mountains region during 1961-2009,the annual and seasonal variation of potential evapotranspiration was analyzed in combination with the Penman-Monteith model.With the method of Spline interpolation under ArcGIS,the spatial distribution of potential evapotranspiration was presented to research the regional difference,and the correlation analysis was used to discuss the dominant factor affecting the potential evapotranspiration.The results indicated that the annual potential evapotranspiration showed a decreasing tendency since the 1960s,especially from the 1980s to 1990s,while it showed an increasing tendency since 2000.Regional potential evapotranspiration showed a rate of-0.17 mm a-1.Potential evapotranspiration in north,middle and south of the Hengduan Mountains exhibited decreasing trends over the studied period,and its regional trend was on the decline from southwest to northeast.水利论文h$T9g.K&S&B N

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[5G@~VWN#A0Author:水利论文v3\(R`_:n.r5X

7?8q,Vqw2u L0ZHU Guofeng[1]水利论文4eLK6L V1x

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HE Yuanqing[2]水利论文Q(@V/em{ C`b1C

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PU Tao[3]水利论文(X-M_4DJ

(d-A|Z;]-cK-g0WANG Xufeng[1]

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JIA Wenxiong[4]水利论文xO {.?6w7@+i

SbS u_` C|t OR0LI Zongxing[1]水利论文"Odh\6P v R

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XIN Huijuan[1]

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作者单位:水利论文'm3f8U%l9ip Rlc6i

7G D"X*Oi V0State Key Laboratory of Cryosphere Sciences, Yulong Snow Mountain Glaciers and Environmental Observation Station, Cold and Arid Regions Environmental and Engineering Research Institute, CAS, Lanzhou 730000, China;Graduate University of Chinese Academy of Sciences, Beijing 100049, China水利论文*fu RG ooTn/sO.n

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State Key Laboratory of Cryosphere Sciences, Yulong Snow Mountain Glaciers and Environmental Observation Station, Cold and Arid Regions Environmental and Engineering Research Institute, CAS, Lanzhou 730000, China;Research School of Arid Environment and Climate Change, Lanzhou University, Lanzhou 730000, China

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7~x['w"SV0Research School of Arid Environment and Climate Change, Lanzhou University, Lanzhou 730000, China水利论文Ng0^1A4Lx

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College of Geography and Environment Science, Northwest Normal University, Lanzhou 730070, China

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期 刊:水利论文-R2f.Z1{ay4P*lmX

+XF{/y:p&j4r6{C$WK0地理学报(英文版)水利论文%H%c*E@7wD J`;up;k;l

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Journal:

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iS-q?,C$L4@K0Journal of Geographical Sciences

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&W9[~y z0年,卷(期):

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&z0dp\fl.OW5j02012, 22(1)

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Keywords:

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k2JC'z#mdCX0potential evapotranspiration水利论文/OXXm7B p5?

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Spline interpolation

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Penman-Monteith model水利论文+foa8QwyB({

7j6X"XD.Dp1E0spatial and temporal variations水利论文7Rg1ezW.d8A

P`*W dh h0Hengduan Mountains水利论文4D8e6?)m M3[:KX

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在线出版日期:

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2012年3月20日水利论文f,mQ vaD

X&E2{_(y(q0基金项目:水利论文E.X(}1I V

(?}f$U dcY8Gc2HYB0National Basic Research Program of China,National Natural Science Foundation of China (NSFC),National Basic Research Program of China,Major Directionality Program of the Chinese Academy of Sciences,West Light Foundation of the Chinese Academy of Sciences水利论文c(S0W&G;NnX.| ?C

;^0b+D:?5c+z0Spatial distribution and temporal trends in potential evapotranspiration over Hengduan Mountains region from 1960 to 2009水利论文"@\6ka/Ff'r#M

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[期刊论文] 地理学报(英文版)

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4[VB~`S0--2012, 22(1)水利论文?5sr[2D)C

;G i Q7qx!XO0Based on the meteorological data of 20 stations in the Hengduan Mountains region during 1961-2009,the annual and seasonal variation of potential evapotranspiration was analyzed in combination with the ...

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