Aboveground biomass in managed and unmanaged bamboo forests for Phyllostachys pubescens and Phyllostachys bambusoides

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  • 福岡県篠栗町の放棄モウソウチク林およびマダケ林におけるタケノコ採取の有無が地上部バイオマスに与える影響
  • フクオカケン ササグリマチ ノ ホウキ モウソウチクリン オヨビ マダケリン ニ オケル タケノコ サイシュ ノ ウム ガ チジョウブ バイオマス ニ アタエル エイキョウ

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Abstract

This report presents results of four-year monitoring of aboveground biomass in a control plot (i.e., abandoned forest) and a treatment plot (i.e., bamboo shoot harvested forest) for a Moso bamoboo forest (Phyllostachys eduli)) and a Madake bamboo forest (Phyllostachys bambusoides) in Kasuya research forest. Aboveground biomass in control and treatment plot was lower than broad leave forests in Kasuya Research forest. Two-year cycle for new culm and harvested bamboo shoot was not observed and inter-annual variation in aboveground biomass increment was very high. Aboveground biomass increment was higher than those for forests in Kasuya research forest, suggesting that abandoned bamboo forests have very high productivity. Bamboo shoot harvest decreased aboveground biomass, but did not affect number of harvested bamboo shoot. High inter-annual variation in new culms suggests that longer-time monitoring is necessary to examine dynamics of bamboo forest.

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