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(Article of periodic en Anglais - 2014)

Document title

Estimation of diffuse photosynthetically active radiation and the spatiotemporal variation analysis in China from 1981 to 2010

Authors(s) and Affiliation(s)

REN X. (1 2) ; HE H. (1) ; ZHANG L. (1) ; YU G. (1) ;
(1) Key lab. of Ecosystem Network Observation and Modeling, Inst. of Geographic Sciences and Natural Resources Research, CAS, Beijing, CHINE
(2) Univ. of Chinese Academy of Sciences, Beijing, CHINE

Abstract

The AA. estimated the diffuse photosynthetically active radiation (PAR) of over 700 meteorological sites in China from 1981 to 2010 using an empirical model based on observational data from Chinese Ecosystem Research Network (CERN) and China Meteorology Administration. Then they derived the spatial data set of 10 km monthly diffuse PAR using ANUSPLIN software, and analyzed the spatiotemporal variation characteristics of diffuse PAR through GIS and trend analysis techniques. The results showed that : 1) The spatial patterns of annual average diffuse PAR during 1981–2010 are heterogeneous across China, lower in the northeast and higher in the west and south; 2) There is an evident increasing trend of annual diffuse PAR during recent 30 years, but a significant declining trend is shown in the first 10 years, and obvious anomalies can be seen in 1982, 1983, 1991 and 1992; 3) The spatial distribution of temporal variation rates of diffuse PAR is inhomogeneous across the country, generally decreasing in the north and increasing in the south

Source

Article of periodic

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

Editor : CHINE

Millesime : 2014, vol. 24, no4 [pp. 579-592]

Bibliographic references : 28 ref.

Collation : 9 fig., 2 tabl.

Language

Anglais

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1007/s11442-014-1107-1

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
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