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(Article of periodic en Anglais - 2011)

Document title

Effect of solar radiation on net ecosystem CO2 exchange of alpine meadow on the Tibetan Plateau

Authors(s) and Affiliation(s)

FAN Y. (1 2) ; ZHANG X. (1) ; WANG J. (1) ; SHI P. (1) ;
(1) Key lab. of Ecosystem Network Observation and Modeling, Inst. of Geographic Sciences and Natural Resources Research, CAS, Beijing, CHINE
(2) Graduate University of Chinese Academy of Sciences, Beijing, CHINE

Abstract

To analyze the characteristics of change in the net ecosystem CO2 exchange in the daytime (NEE) and to calculate the parameters related to photosynthesis and respiration in different solar radiation environments, the NEE measurements were taken in Damxung from July to August in 2003, 2004, 2005 and 2006 using the eddy covariance technique. The diurnal relationships between NEE and photosynthetically active radiation (PAR) varied with differences in solar radiation, which was a rectangular hyperbola form on clear days, two different concave curves on partly cloudy days and an irregular triangle form on cloudy days. The mean CO2 absorption rate showed a decreasing trend with increasing solar radiation. Therefore, on the Tibetan Plateau, the alpine meadow ecosystem will have a higher carbon absorption potential while solar radiation decreases in the future

Source

Article of periodic

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

Editor : CHINE

Millesime : 2011, vol. 21, no4 [pp. 666-676]

Bibliographic references : 42 ref.

Collation : 6 fig., 1 tabl.

Language

Anglais

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1007/s11442-011-0871-4

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