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標題: 惠蓀實驗林場桂竹林生物量與養分聚積
Biomass and Nutrient Accumulation of Makino Bamboo stand in ental Forest Station
作者: 游麗玉
Yu, Li-Yu
關鍵字: biomass;生物量;nutrient accumulation;makino bamboo;養分聚積;桂竹
出版社: 森林學系
,其中一年生比例較少約佔5.1%,五年生以上 (含五年生)的樣竹較多
下 0-20cm處,20-40cm處較少,40cm以下者甚少或無。此外,以迴歸式推

The purpose of this study is to investigate the aboveground
biomass and nutrient accumulation of unmanaged careful makino
bamboo (Phyllostachys makinoi) stands in Hui-Sun Experimental
forest station. Sample trees were selected from different DBH
classes, using the stratified clip method, to obtain the growth
parameters, dissected structure, and volume. And then use the
allometric method to estimate the stand biomass. The results
show that the stand density is 17,445 culms/ha. The new culms
of 1-year-old is about 5.1% and the old culms of over 5-year-
old (inculding 5-year-old) is about 36.3% respectively of the
culms in the whole stand. The new culms produced after 9 months
of clear cutting are exceeding. The biomass of underground
rhizome distribute mainly in of 0- 20 cm depth, and lesser in
20-40cm layer. The distribution of rhizome beneath 40cm depth
is very few. The volume of this bamboo stand is about 41.26 m3/
ha estimated by allometry method. The aboveground biomass is
about 44.26 ton/ha, and underground biomass is 40.12 ton/ha.
The ratio of biomass for clums : branches : leaves is 75:19:6.
The nutrient accumulation of aboveground component is mostly in
culms. The nutrent content in branches and leaves is changed by
age. The amount of underground nutrient accumulation is
largest for Nitrogen. The next is Postassium, and followed by
P, Na, and Mg.
Appears in Collections:森林學系

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