Bulletin of the Faculty of Agriculture, Shimane University

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Bulletin of the Faculty of Agriculture, Shimane University 26
1992-12-21 発行

コナラの優占する落葉広葉樹林における枯死有機物量とその分解について

Amount and decomposition of dead organic matter in a deciduous broad-leaved forest dominated by Quercus serrata
Katagiri, Shigeo
Nagayama, Yasuhide
Kaneko, Nobuhiro
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Description
The dry weight and decomp sition rate of dead organic matter in deciduous broadleaved forests were measured at Sanbe Forest of Shimane University. The dry weight of dead organic matter was 4.1-16.8% of above ground biomass in forest ecosystem. Standing dead tree was broken down from the top with decomposition of organic matter, and decreased the total height and specific gravity. Dead trees by girdling also decreased the total hight and specific gravity with the increase of years. However, the trends differed among tree species. The height of standing dead trees did not decrease for 3-4 years after the death of tree, and the decline of the height and specific gravity occurred from five to eight years after.