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Structure and regeneration status of woody species in the Munessa Forest, Southern Ethiopia
Journal of Forestry Research ( IF 3.4 ) Pub Date : 2020-04-13 , DOI: 10.1007/s11676-020-01120-y
Mengistu Gelasso , Junqing Li

This study evaluates the structure and regeneration status of woody species in the Munessa Forest, a dry Afromontane forest in southern Ethiopia. Vegetation data were collected using a systematic sampling method. Density and distribution of seedlings, saplings and mature trees were assessed along an altitudinal gradient using quadrats of different sizes. The number of individuals, frequencies, heights and DBH of species > 1 m and DBH > 2.5 cm were recorded in altitudinal bands of 100 m. Analysis of the vegetation structure shows that the density of woody species decreases as DBH and height class increases. Basal area of stems with DBH > 2.5 cm was 53.4 m2 ha−1. Population structure and regeneration patterns indicate a significant degradation of the forest due to anthropogenic disturbances. Regeneration was better for less valuable woody species than for species with economic and ecological value. This suggests a discontinuous recruitment of these species due to selective cutting of middle and higher diameter classes. Therefore, enrichment planting of high value, endangered species is necessary to maintain them as part of this forest. There is a need to develop and implement an effective forest management plan for sustainable use of these forest resources.



中文翻译:

埃塞俄比亚南部Munessa森林中木本物种的结构和更新状况

这项研究评估了埃塞俄比亚南部干旱的Afromontane森林Munessa森林中木本植物的结构和再生状况。使用系统的采样方法收集植被数据。使用不同大小的四方方动物,沿着海拔梯度评估幼苗,幼树和成熟树木的密度和分布。在100 m的垂直带中记录了> 1 m且DBH> 2.5 cm的物种的个体数量,频率,高度和DBH。对植被结构的分析表明,随着DBH和高度等级的增加,木本植物的密度降低。DBH> 2.5 cm的茎的基础面积为53.4 m 2  ha -1。人口结构和更新模式表明由于人为干扰森林的严重退化。较珍贵的木本物种的再生比具有经济和生态价值的物种更好。这表明由于选择性切割中等和较高直径类别,这些物种的募集不连续。因此,有必要进行高价值,濒危物种的富集种植,以保持其作为该森林的一部分。需要制定和执行有效的森林管理计划,以可持续利用这些森林资源。

更新日期:2020-04-13
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