{"title":"Growing Site Characteristics of Agathis labillardieri Warb in the Natural Forests of Siwi Momiwaren, West Papua","authors":"R. Siburian, Mei Trirbo, Rusdi Angrianto","doi":"10.23960/JSL38297-307","DOIUrl":null,"url":null,"abstract":"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","PeriodicalId":17088,"journal":{"name":"Journal of Symbolic Logic","volume":"39 1","pages":"297-307"},"PeriodicalIF":0.5000,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Symbolic Logic","FirstCategoryId":"100","ListUrlMain":"https://doi.org/10.23960/JSL38297-307","RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"LOGIC","Score":null,"Total":0}
引用次数: 5
Abstract
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
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.