印度喜马拉雅库蒙地区阔叶林下草本植物的生物量(英文)

• 作 者: Geeta Kharkwal Poonam Mehrotra Yaswant S.Rawat
• 机 构: Graduate School of Environmental Earth Science,Hokkaido University,Botany Department,Kumaun Universi
• 出 处: Journal of Forestry Research
• 发表日期: 2010年03期
• 关键词: 生物量 研究地点 白橡 森林类型 树种组成 海拔高度 Quercus 林分密度 biomass 群落动态

在喜马拉雅库蒙地区(Kumaun Himalaya)中部的不同海拔高度设立研究地点,集中研究由白橡(Quercus leucotrichophora)、石斛(Quercus floribunda)、高山栎(Quercus semicarpifolia)组成的阔叶林下的草本植物群落动态及植物生物量。随着海拔高度的上升,3种森林的林分密度及生物量明显下降。在所有研究样地中,白橡林密度和生物量最大。在两个不同方位研究地,草本植物平均密度明显不同,表现为在西向坡地的草本植物密度较大。在各研究地点,总生物量随着海拔高度明显下降(p<0.05),且白橡树林的总生物量最高。

A study site was established at various altitudes in the central part of Kumaun Himalaya in the Himalayas to focus on the herbaceous plant community under broad-leaved forest consisting of Quercus leucotrichophora, Dendrobium (Quercus floribunda), Quercus semicarpifolia Dynamic and plant biomass. With the elevation increasing, the stand density and biomass of three kinds of forests decreased significantly. Among all the study plots, white oak had the highest density and biomass. The average density of herbaceous plants is significantly different in the study of two different orientations, showing the greater density of herbaceous plants on the west slope. At each study site, total biomass decreased significantly with altitude (p <0.05), and total biomass of white oak forests was the highest.