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首页> 外文期刊>Taiwan Journal of Forest Science >Species composition, size-class structure, and diversity of the Lienhuachih Forest Dynamics Plot in a subtropical evergreen broad-leaved forest in central Taiwan. (Special issue: Subtropical forest dynamic plot research)
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Species composition, size-class structure, and diversity of the Lienhuachih Forest Dynamics Plot in a subtropical evergreen broad-leaved forest in central Taiwan. (Special issue: Subtropical forest dynamic plot research)

机译：台湾中部亚热带常绿阔叶林Lienhuachih森林动态图的物种组成，大小等级结构和多样性。 （特刊：亚热带森林动态图研究）

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The Lienhuachih Forest Dynamics Plot (FDP), measured 500 m by 500 m square, is located in central Taiwan. The collected data, followed a unified method adopted for the worldwide FDP network, were analyzed for floristic composition, size-class structure, and species diversity. In total, the censused trees and shrubs belonged to 144 species in 86 genera and 39 families. The most dominant families were the Fagaceae, Lauraceae, Rubiaceae, Euphorbiaceae, and Melastomataceae. In total, 153268 (6131 ha-1) individuals were recorded, and the total basal area was 34.77 m2 ha-1. Of the 144 species, the most abundant were Randia cochinchinensis and Blastus cochinchinensis. Pasania nantoensis had the highest basal area (8.38%), followed by Engelhardtia roxburghiana (8.12%) and Schefflera octophylla (7.23%). Calculation of the importance value (IV, incorporating relative values of abundance and basal area) showed that R. cochinchinensis, B. cochinchinensis, S. octophylla, Cryptocarya chinensis, and E. roxburghiana were the most dominant species with the highest IV values in the plot. The sum of the 30 top species' IV reached 83.06% of the whole. Although the 1st 2 species were understory and very dominant due to the large number of individuals, certain numbers of rare species however increased the floristic diversity in the plot. Based on the species composition, the forest is characteristic of the Machilus-Castanopsis forest zone of Taiwan, with certain dominant understory species and possessing 2 pioneer species in the major canopy composition. For the size-class structure, 102 (each with total stems >=25) species showed 4 patterns of size-class distribution: L-shaped, inverse J-shaped, fluctuating, and bell-shaped. The former 3 patterns in a total of 98 species, including a great number of small-sized individuals, imply that most current species in this study site can display good recruitment with rich resources of saplings. The woody plant richness of the Lienhuachih FDP is the highest among low-elevation FDPs in Taiwan. Compared to other Center of Tropical Forest Science forest dynamics plots on islands, Fisher's alpha diversity (ha-1) index of the subtropical Lienhuachih FDP was similar to that of the Luquillo FDP in Puerto Rico but much lower than that of other FDPs in the tropics.
机译：莲华池森林动态图（FDP）位于台湾中部，面积为500 m x 500 m平方。遵循全球FDP网络采用的统一方法，对收集到的数据进行了植物区系组成，大小分类结构和物种多样性分析。总体而言，被调查的树木和灌木属于86属39科的144种。最主要的科是菊科，月桂科，茜草科，大戟科和美兰科。总共记录了153268（6131 ha -1 ）个个体，总基础面积为34.77 m 2 ha -1 。在144种中，最丰富的是 Randia cochinchinensis 和 Blastus cochinchinensis 。 南Pasania 具有最高的基础面积（8.38％），其次是 Engelhardtia roxburghiana （8.12％）和 Schefflera octophylla （7.23％）。重要性值（IV，包括丰度和基础面积的相对值）的计算表明，R。 cochinchinensis ， B。 cochinchinensis ， S。 octophylla ， Cryptocarya chinensis 和 E。在该样地中，roxburghiana 是最优势种，IV值最高。 30个主要树种的IV值之和达到总数的83​​.06％。尽管由于个体数量众多，第1 2种在林下并且很占优势，但是一定数量的稀有种增加了该小区的植物多样性。根据物种组成，该森林是台湾 Machilus-Castanopsis 林区的特征，具有一定的优势林下种，并且在主要冠层组成中具有2个先锋树种。对于大小分类结构，有102种（每个茎的总茎数大于等于25）显示了4种大小分类分布模式：L形，倒J形，起伏和钟形。在总共98个物种中，前3种模式，包括大量的小型个体，表明该研究地点中的大多数当前物种都可以显示出良好的募集和幼树资源。莲华池FDP的木本植物丰富度在台湾低海拔FDP中最高。与其他热带森林科学中心的森林动态图相比，亚热带Lienhuachih FDP的Fisher Fisher多样性指数（ha -1 ）指数与波多黎各的Luquillo FDP相似，但远低于热带地区其他FDP的价格。

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