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(Article of periodic en Anglais - 2012)

Document title

Spatial distribution and temporal trends in potential evapotranspiration over Hengduan Mountains region from 1960 to 2009

Authors(s) and Affiliation(s)

ZHU G. (1 2) ; HE Y. (1 3) ; PU T. (3) ; WANG X. (1 2) ; JIA W. (4) ; LI Z. (1 2) ; XIN H. (1 2) ;
(1) State Key Lab. of Cryosphere Science/Yulong Snow Mountain Glaciers and Environmental Observation Station, Cold and Arid Region Environment and Engineering Research Inst., CAS, Lanzhou, CHINE
(2) Graduate Univ. of Chinese Academy of Sciences, Beijing, CHINE
(3) Research School of Arid Environment and Climate Change, Univ., Lanzhou, CHINE
(4) College of Geography and Environment Science, Northwest Normal Univ., Lanzhou, CHINE

Abstract

Based 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. 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

Source

Article of periodic

published at : Journal of geographical sciences. Acta geographica sinica / ISSN 1009-637X

Editor : CHINE

Millesime : 2012, vol. 22, no1 [pp. 71-85]

Bibliographic references : 24 ref.

Collation : 5 fig., 4 tabl.

Language

Anglais

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1007/s11442-012-0912-7

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
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