DECOMPOSITION OF WOOD LITTER IN A FOREST

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  • 森林における枯死材の分解
  • シンリン ニ オケル コシザイ ノ ブンカイ

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Abstract

Dynamics of woody materials in a forest ecosystem is closely related to the regeneration process and nutrient cyclings in it. The decomposition process of wood litter under field conditions was discussed in this paper. Some physico-chemical progress of dead wood change successively and accelerate the decay rate with the progress of decomposition. This produces a characteristic decomposition process being different from one of other substrates. The relationships between the decay rate and some environmental factors were explained. A logistic equation for dry weight loss was derived from a linear relation between decay rate and bulk density and the characteristics of the equation were examined. An estimation of annual decomposition rate of wood litter in a forest was demonstrated, and a simulation of dynamics of woody materials was tried using some empirical formulations.

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