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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Tree diversity and stand structure in inland and coastal tropical dry evergreen forests of peninsular India.
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Tree diversity and stand structure in inland and coastal tropical dry evergreen forests of peninsular India.

机译：印度半岛内陆和沿海热带干燥常绿森林中的树木多样性和林分结构。

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摘要

To examine tree diversity and stand structure and their relation to site disturbances, we used the tree dataset of ten 1-ha permanent plots of tropical dry evergreen forests of peninsular India, distributed five in inland and five in coastal areas. In the ten independent sites, a 100 m x 100 m permanent plot was established, and all trees >=10 cm girth at breast height were enumerated, their girth measured and tagged. Tree diversity totalled 77 species in 61 genera of 30 families. Tree density varied from 596 to 2813 stems ha-1, and basal area ranged between 12.4 and 36.5 m2 ha-1. Species richness did not show any significant variation within and between the inland and coastal areas. We examined the relationship between basal area and site disturbance scores between the five sites of inland and coastal forest areas and found a negative correlation in both the areas. The coefficient of variability in species distribution among the ten sites revealed the extent of species heterogeneity. The number of species and stems decreased from the smallest to largest girth class. The tree inventories of the studied sites when compared with those of other tropical dry evergreen forests showed great differences in density and basal area, probably due to different geographical location and varying annual rainfall patterns. Our study sites can be designated as Memecylon umbellatum-Drypetes sepiaria-Pterospermum canescens series, based on species importance value..
机译：为了检验树木的多样性和林分结构及其与场地干扰的关系，我们使用了印度半岛热带干燥常绿森林的10个1公顷永久性样地的树木数据集，其中五个分布于内陆，五个分布于沿海地区。在这十个独立的地点中，建立了一个100 m x 100 m的永久性地块，并列举了所有在胸高> 10 cm的周长的树木，测量并标记周长。树木多样性共有30科61属77种。树木密度从ha-1的茎到596到2813不等，基础面积在ha-1的12.4和36.5 m2之间。内陆和沿海地区之内和之间的物种丰富度均未显示任何显着变化。我们研究了内陆和沿海林区五个站点之间的基础面积与站点干扰评分之间的关​​系，发现这两个区域都呈负相关。十个站点之间物种分布的变异系数揭示了物种异质性的程度。种类和茎的数量从最小的周长类别减少到最大的周长类别。与其他热带干性常绿森林相比，研究地点的树木清单在密度和基础面积上存在很大差异，这可能是由于地理位置不同和年度降雨模式不同所致。根据物种重要性值，我们的研究地点可以指定为Memecylon umbellatum-Drypetes sepiaria-Pterospermum canescens系列。

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