西巴布亚岛Siwi Momiwaren天然林中野刺草生长地点特征

IF 0.5 3区数学 Q3 LOGIC

Journal of Symbolic Logic Pub Date : 2020-09-28 DOI:10.23960/JSL38297-307

R. Siburian, Mei Trirbo, Rusdi Angrianto

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引用次数: 5

摘要

Agathis labillardieri Warb是产煤树种之一，仅分布在巴布亚。在区域发展方面，这一物种的存在一直是一个重大问题。因此，有必要对四维莫米瓦仁天然保护林的自然生长区的野刺的特征进行研究。数据采集采用线形图法和嵌套图系统抽样法。然后对数据进行分析，确定物种相对密度、频率、优势度、重要值指数(IVI)和生长特征。结果表明，在各生长水平上，野刺的IVI最高，在幼苗水平上的多样性指数最高，为3,49。从物种存在与生长地点特征的关系来看，Mg和Na含量显著影响南马诺瓦里Siwi Momiwaren天然林地区该物种的存在。关键词:野田葵，生长地点特征，Siwi Momiwaren，西巴布亚

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Growing Site Characteristics of Agathis labillardieri Warb in the Natural Forests of Siwi Momiwaren, West Papua

Agathis labillardieri Warb is one of the copal-producing tree species that only distributed in Papua. In connection with regional development, the existence of this species has been a significant concern. Therefore, it is necessary to study the characteristics of A. labillardieri Warb in their natural growing areas in the natural protected forest of Siwi Momiwaren. The data were collected by using the line plot method systematic sampling method with nesting plot. The data were then analyzed to determine the species relative density, frequency, dominance, important value index (IVI), and growth characteristics. The results showed that A. labillardieri Warb had the highest IVI at all levels of growth, with the highest diversity index at the seedling level of 3,49. When viewed from the relationship of the presence of species with the characteristics of the growing site, the content of Mg and Na significantly affected the presence of this species in the natural forest area of South Manokwari Siwi Momiwaren. Keywords: Agathis labillardieri Warb, growing site characteristics, Siwi Momiwaren, West Papua

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来源期刊

Journal of Symbolic Logic 数学-数学

CiteScore

1.20

自引率

16.70%

发文量

审稿时长

6-12 weeks

期刊介绍： The Journal of Symbolic Logic publishes research in mathematical logic and its applications of the highest quality. Papers are expected to exhibit innovation and not merely be minor variations on established work. They should also be of interest to a broad audience. JSL has been, since its establishment in 1936, the leading journal in the world devoted to mathematical logic. Its prestige derives from its longevity and from the standard of submissions -- which, combined with the standards of reviewing, all contribute to the fact that it receives more citations than any other journal in logic.