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(Article of periodic en Anglais - 2012)

Document title

What determines forest litter decomposition ? Global trends and local variance

Authors(s) and Affiliation(s)

LASKOWSKI R. (1) ;
(1) Jagiellonian Univ., Inst. of Environmental Sciences, Kraków, POLOGNE

Abstract

It is now commonly accepted that the prime factor determining the litter decomposition rate on a global scale, is actual evapotranspiration (AET). However, this main effect can be seriously modified by the chemical composition of organic matter itself, resulting in large variance at local scales. Among leaf litter components, the lignin concentration, content of water-soluble compounds, concentration of nitrogen and some other nutrients have been indicated by different AA. as the major determinants of litter decomposition rate. There is a failure of existing models to predict properly litter decay rate in many cases. These include especially ecosystems from outside the temperate climate, such as boreal and wet tropical forests. The existing models still cannot explain the large differences in litter decomposition rates between species. This paper presents several reasons for the problem of finding satisfactory litter decomposition models

Source

Thematical fascicle

published at : Geographia polonica / ISSN 0016-7282 / CODEN GGPLAE

Editor : Państwowe Wydawnictwo Naukowe, Warszawa - POLOGNE (1964)

Millesime : 2012, vol. 85, no 2 [pp. 39-46]

Bibliographic references : 19 ref.

Collation : fig., tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 12059

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.7163/GPol.2012.2.9

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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