Structure and regeneration status of woody species in the Munessa Forest,Southern Ethiopia  

作　　者：Mengistu Gelasso Junqing Li 

机构地区：[1]Department of Forest Ecology,College of Forestry,Beijing Forestry University,P.O.Box 100083,Beijing,People’s Republic of China

出　　处：《Journal of Forestry Research》2021年第2期493-501,共9页林业研究（英文版）

基　　金：supported by the National Key R&D Program of China(2017YFD0600600).

摘　　要：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 m^(2)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.

关 键 词：Woody species Altitudinal gradient Regeneration status Structural distribution 

分 类 号：S718.5[农业科学—林学]