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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Forest dynamics in tropical rain forests of Uttara Kannada district in Western Ghats, India
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Forest dynamics in tropical rain forests of Uttara Kannada district in Western Ghats, India

机译：印度西高止山脉Uttara Kannada区热带雨林中的森林动态

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摘要

Species richness, tree and stem density, basal area and recruitment details were monitored for ten years (1984 to 1994) in eight one-hectare forest sites in evergreen and moist deciduous forest zones of the tropical rain forests in Uttara Kannada district of the Western Chats in southern India, Changes in species richness and basal area were observed in majority of the forest sites. Loss of more number of stems and trees as well as species was observed in minor forests of the evergreen forest zone. Higher species richness and basal area were observed in reserve forests, perhaps as a result of restricted access. Occurrence of more number of species over ten years In minor forests of moist deciduous zone indicates opening of canopy, favouring growth of other species. Regeneration of existing species in the study plot is suggestive of the site potentiality to retain its physiognomic status. Appearance of species with different physiognomic characters and reduction in basal area suggest greater extraction pressure, implying the deteriorating vegetation status. Increase in the basal area could be due to recruitment, compensatory growth of the existing trees/stems and due to the fast growth of the coppicing trees/stems. [References: 51]
机译：在Western Chats的Uttara Kannada地区的热带雨林的常绿和潮湿落叶林区的八个单公顷森林站点中，对物种丰富度，树木和茎密度，基础面积和募集细节进行了十年（1984年至1994年）的监测。在印度南部，大多数林地都观察到物种丰富度和基础面积的变化。在常绿森林地带的小森林中，观察到更多的茎，树和物种损失。在保留森林中观察到更高的物种丰富度和基础面积，这可能是由于限制进入的结果。在过去的十年中，更多种类的物种出现在潮湿的落叶地带的小森林中，表明树冠开放，有利于其他物种的生长。研究区中现有物种的再生表明该位点保留其生理状态的潜力。具有不同地貌特征的物种的出现和基底面积的减少表明提取压力更大，这意味着植被状况正在恶化。基础面积的增加可能是由于现有树木/茎的补充，补偿性生长以及由于交配的树木/茎的快速生长所致。 [参考：51]

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