标题：Population and composition structure of Titan Arum habitats (Amorphophallus titanum [Becc.] Becc. Ex Arcang) in lowland tropical rainforests of Bengkulu
其他标题：Populasi dan struktur komposisi vegetasi habitat bunga bangkai (Amorphophallus titanum [Becc.] Becc. Ex Arcang) di kawasan hutan Bengkulu
期刊名称：Journal of Natural Resources and Environmental Management
印刷版ISSN：2086-4639
电子版ISSN：2460-5824
出版年度：2019
卷号：9
期号：2
页码：241-257
DOI：10.29244/jpsl.9.2.241-257
语种：English
出版社：Bogor Agricultural University
摘要：The knowledge of structure and composition of Titan Arum habitats in lowland tropical rainforests of Bengkulu limit the option to formulate the appropriate strategy for conservation. The research was carried out with the objective to determine the population, structure, and composition of vegetation in the habitats of Titan arum located in Bengkulu. This study used purposively sampled plot with a size of 100 m x 100 m consisting of sub-plot of 20m x 20m, 10 m x 10 m, 5 m x 5 m and 2 m x 2 m for observing tree, pole, sapling, and seedling. Data were analyzed to generate the following parameters: important value index (IV), diversity index of Shannon-Wienner and evenness index, interspecific association and resemblance function. The results showed that the total num-ber of Titan Arum individuals found across three sampled forest sites were 52 individuals, consisting of 49 individuals at the vegetative phase and three individuals at generative phase. Titan Arum habitats consisted of 417 species belonging to 103 families of various growth stages. Habitat in Air Selimang was dominated by Artocarpus elasticus with an important value index of 12.09%, while in Tebat Monok and Palak Siring were by Quercus oidocarpa with IV of 22.22% and Elatoriospermum tapos with IV of 31.40%, respectively. Values of diversity indices (H’) of vegetation for Titan Arum habitats for each growth stages were nearly steady (2.75 – 4.50). A similar steady trend was also observed for evenness index values of 0.640 – 0.982 at each growth stages. The vegetation of Titan Arum in Air Selimang and Tebat Monok revealed positive interspecific association for all species, whereas in the Palak Siring habitat showed independence of species. Air Selimang Vegetation has the greatest resemblance to Te-bat Monok with a similarity index of 62.26.
关键词：Amorphophallus titanum; diversity index; evenness index; interspecific association; important value index; population; structure and composition
