Studi Populasi dan Distribusi Palahlar (Dipterocarpus hasseltii Blume) di Resort Gunung Salak I, Taman Nasional Gunung Halimun Salak

Journal of Tropical Silviculture Pub Date : 2023-12-28 DOI:10.29244/j-siltrop.14.03.229-235

Iwan Hilwan, Prima Anggoro

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Abstract

Gunung Halimun Salak National Park (GHSNP) is a conservation area that a habitat for rare and protected flora and fauna. Palahlar (Dipterocarpus hasseltii Blume) is a rare plant species found in the GHSNP area with an endangered species and had declining population trend. This study aimed to analyze habitat conditions, population and distribution patterns of D. hasseltii at Gunung Salak I Resort of GHSNP. Data were collected by purposive sampling method based on the presence of D. hasseltii. Vegetation analysis used the grid-lined method of 5 lanes measuring @ 100 m × 20 m, so that the total area of the observation plots was 1 ha. The observation plots were dominated by puspa (Schima wallichii), which had the highest Importance Value Index (IVI) at the seedlings (26,80%), saplings (24,04%), and trees (53,86%). The regeneration rate of D. hasseltii, showed an abnormal condition, because the number of seedlings was less than the number of saplings. A total of 28 individuals of D. hasseltii were found at the observation plots consisted of 4 individual seedlings, 15 individual saplings, 3 individual poles, and 6 individual trees. The results showed that the distribution pattern of D. hasseltii was clustered. Keywords: Dipterocarpus hasseltii, endangered species, Gunung Halimun Salak National Park, palahlar

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古农哈里蒙萨拉克国家公园古农萨拉克 I 度假村棕榈树（Dipterocarpus hasseltii Blume）的种群和分布研究

古农哈里蒙萨拉克国家公园（Gunung Halimun Salak National Park，GHSNP）是一个保护区，是稀有和受保护动植物的栖息地。巴拉拉树（Dipterocarpus hasseltii Blume）是古贡哈里蒙萨拉克国家公园地区发现的稀有植物物种，属于濒危物种，其数量呈下降趋势。本研究的目的是分析古登沙拉克国家公园第一度假区（Gunung Salak I Resort of GHSNP）的 D. hasseltii 的栖息地条件、种群数量和分布模式。根据 D. hasseltii 的存在情况，采用目的取样法收集数据。植被分析采用了网格线法，即 5 条 100 米×20 米的小道，因此观察地块的总面积为 1 公顷。观察地块中主要是糙叶木（Schima wallichii），其重要价值指数（IVI）最高，包括幼苗（26.80%）、树苗（24.04%）和乔木（53.86%）。D. hasseltii 的再生率显示出异常情况，因为幼苗数量少于树苗数量。观察地块共发现 28 个 D. hasseltii 个体，其中包括 4 个幼苗个体、15 个树苗个体、3 个树杆个体和 6 个树木个体。结果表明，D. hasseltii的分布模式为群聚分布。关键词：Dipterocarpus hasseltii濒危物种哈里蒙萨拉克山国家公园巴拉拉树

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Journal of Tropical Silviculture

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