埃塞俄比亚西哈拉河地区奥罗米亚州Ades森林木本树种组成及自然更新状况

O. Dereje, I. D. Duguma
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引用次数: 1

摘要

本研究在埃塞俄比亚西哈拉尔河地区的Ades森林进行,以确定森林的木本物种组成和更新状况。采用系统采样的方法,从天然林的顶部到底部,沿横断面线建立48个(20 m×20 m)主要样地,以海拔下降10 m为间距,收集植被数据。在主地块(400 m2)内,建立了子地块(5 m×5 m),以简化幼苗和树苗的计数。每个样地记录物种丰度和环境变量。共鉴定出木本植物48种,隶属于29科42属。豆科的分类群数量最多,蔷薇科次之,紫花苜蓿科次之。木本植物成熟个体密度为197.9 ha-1,幼树密度为420 ha-1,幼苗密度为849.5 ha-1。尽管林内木本植物的更新状况总体上显示出良好的更新状况,但该地区存在人为干扰,需要采取保护行动,以确保森林的可持续利用和管理。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Woody Species Composition and Natural Regeneration Status of Ades Forest, Oromia Regional State, West Hararghe Zone, Ethiopia
This study was conducted at Ades forest in West Hararghe Zone, Ethiopia, for determining the woody species composition and regeneration status of the forest. Systematic sampling method was used to collect vegetation data from 48 (20 m×20 m) main sample plots for woody species that was established along a transect line and spaced at 10 m altitudinal drop, from top to the bottom of the natural forest. Inside the main plot (400 m2), subplots (5 m×5 m) were established to simplify the counting of seedlings and saplings. Species abundance and environmental variables were recorded in each sample plot. A total of 48 woody plant species belonging to 42 genera and 29 families were identified. Fabaceae family had the highest number of taxa followed by Rosaceae and Flacourtiaceae families. Woody plant species densities for mature individuals were 197.9 ha-1, saplings 420 ha-1and 849.5 ha-1for seedlings. Although over all regeneration status of woody plants of the Forest revealed good regeneration status, the presence of anthropogenic disturbance in the area necessitates the need for conservation action in order to ensure sustainable utilisation and management of the Forest.
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