Analisis Vegetasi Hutan Alam
17 Jan 2005-
About: The article was published on 2005-01-17 and is currently open access. It has received 4 citations till now.
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31 Jan 2014
TL;DR: In this paper, the authors analyzed the vegetation of orchid habitat and to determine orchids species around Tambing Lake, Lore Lindu National Park area, Sedoa village, Lore Utara district, Poso regency, Central Sulawesi.
Abstract: The research objective were to analyze the vegetation of orchid habitat and to determine orchids species around Tambing Lake, Lore Lindu National Park area, Sedoa village, Lore Utara district, Poso regency, Central Sulawesi. The study employed survey method. The vegetation was recorded in 20m x 20m plots by using purposive sampling methods in orchid habitat. The collected data include all plant species and growth level swithin the sampling plot. The total observation area was 0,16 ha. The results showed that the total number of tree level of plant species recorded was 38 species comprising 9 families with the highest Importance Value Index (IVI) was 61,62%. The total number of pole level of plant species recorded was 34 species comprising 7 families with the highest IVI was 74, 43%. The total number of sapling level of plant species recorded was 37 species comprising 9 families with the highest IVI was 65,41%. Hence, The total number of seedling level of plant species recorded was 31 species comprising 7 families with the highest IVI was 49,34%. The highest IVI at all growth levels was achieved by Kaha ( Castanopsis accuminatisima ). In addition, there were 12 orchid species comprising 8 genus founded in this area,i.e; Agrostophyllum, Bulbophyllum, Calanthe, Coelogyne, Dendrobium, Dendrochyllum, Eria, and Trichotosia. Keywords : Vegetation, Orchids Habitat, Tambing Lake, Lore Lindu National Park. Normal 0 false false false IN X-NONE X-NONE /* Style Definitions */
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8 citations
26 Feb 2021
TL;DR: In this paper, the authors determined the number of rare plant species in Alas Kedaton Tourism Forest, Tabanan, Bali, Indonesia; and the factors causing the rarity of these plant species.
Abstract: Forests are a source of foreign exchange that has been exploited on a large scale for timber. This exploitation causes a rapid reduction in forest area. Until now, the destruction of the forest environment is still happening, both by illegal logging and illegal mining. This study aims to determine the number of rare plant species in Alas Kedaton Tourism Forest, Tabanan, Bali, Indonesia; and the factors causing the rarity of these plant species. The population in this research is the plant species in Alas Kedaton Tourism Forest. Meanwhile, the social population is all people in the Alas Kedaton Tourism Forest area. The sampling method for plant species is the quadratic method was used to investigate the diversity and the number of rare plants. While for the social sampling was conducted by interviewing with purposive sampling method to the local community around the Alas Kedaton areas. Determination of endangered plant species was conducted by studying of available documents, indepth interviewing, and seeking information from various existent sources. The collected data analyzed descriptively. The results of this study indicated there are 48 species of plants with 26 families, which are generally found in Alas Kedaton Tourism Forest. Of this number, 42 (87.5%) plant species are included in the rare category; (2) of the 42 species of rare plants in the Alas Kedaton Tourism Forest, there are 8 (19.04%) plant species that are included in the National rare category, 20 (47.62%) rare plant species in Bali, 10 ( 23.81%) rare plant species in Tabanan Regency, and 4 (9.52%) species included in the rare category at the District level (especially Marga District); and (3) factors causing the scarcity of plant species in Alas Kedaton Tourism Forest are (a) past environmental degradation, (b) reproductive problems of rare plants, (c) human intervention, (4) disturbance by animals, especially long tailed monkeys (Macaca fascicularis) and bats (Pteropus vampyrus).
4 citations
Cites background from "Analisis Vegetasi Hutan Alam"
...Several studies can be mentioned, such as research conducted by [1-19]....
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15 Dec 2014
TL;DR: The species diversity for food source trees at the protected forest are abundantly available and based on the identied indeces, the diversity at tree, pole and seedling level are categorized as medium while for sappling level was high.
Abstract: Research on the species diversity of food source trees for forest honey bee ( Apis spp ) has been conducted on protected forest at Ensa Village, Mori Atas Sub District, Mori Utara District. The reasearch aimed at studying food source trees composition along with their diversity indeces for the honey bee. The method used to analyse those vegetation was blocked line transect with sampling intensity of 6.25% covering an area of 16 ha that divided into five lines each with five observation plots. The results of the research showed that there were 490 individuals from 43 species, 34 families, within which it was identified that 35 species from 30 families out of the are being food source trees for the honey bee. The parts of the tree that is used as food were nectar and polen of tree flowers. The diversity indeces (H’) for those species at tree, pole, sappling and seedling level, respectively, of 2.90, 2.94, 3.22, and 2.84. As such, based on the identied indeces, the diversity at tree, pole and seedling level are categorized as medium (1H’≤3) while for sappling level was high (H’≥3). Overall, the species diversity for food source trees at the protected forest are abundantly available. Key Words : The diversity of feed, forest honey bees
2 citations
17 May 2015
TL;DR: In this paper, the structure and composition of vegetation, especially for understory vegetation namely seedlings and saplings in the KGPAA Mangkunegoro I Forest Park area (or Taman Hutan Raya/Tahura) in Ngargoyoso Karanganyar Central Java.
Abstract: The aim of the study was to determine the structure and composition of vegetation, especially for understory vegetation namely seedlings and saplings in the KGPAA Mangkunegoro I Forest Park area (or Taman Hutan Raya/Tahura) in Ngargoyoso Karanganyar Central Java. KGPAA Mangkunegoro I Forest Park located in the village of Sukuh Berjo Ngargoyoso Karanganyar District of Central Java. The research used quadratic method for taking the sample. The location is about 1200 above sea level (asl) consists of flora and fauna which the diversity still high. The objectives of this research are to determine species composition, structure and diversity index species of saplings and seedlings vegetation. The data were then analyzed manually. Results showed that 19 species belonging 15 families for seedlings and 10 species belonging 8 families for sapling vegetation. Results of Important Value Index (IVI) of saplings vegetation are Elaeocarpus serratus Roxb (110.42 %); Schima wallichii (DC.) Korth (70.19 %) and Pinus merkusii L. (31.38%). The IVI for seedlings vegetation are Penisetum purpureum (53.4 %);Melastoma sp (17.4 %) and Chloris barbata (13.4 %). Based on the data, it is suggested that the mountain should be conserved and long-term ecological research should be conducted.
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TL;DR: The concept of minimal area was introduced by Braun-Blanquet as discussed by the authors, who defined it as "the smallest area which can contain an adequate representation of an association" and used it to define the characteristic characteristics of a community.
Abstract: Jaccard (1912), one of the first who studied scientifically the species-area relationships, did not confine his observations to a single type of community. The areas with which he dealt were occupied by several different plant communities. His work was fruitful and plant sociologists very soon were studying the effect of the size of the stand on the number of species to be found within the community. This led to the concept of minimal area, "the smallest area which can contain an adequate representation of an association" (BraunBlanquet, 1932, p. 52). The question is immediately raised: What constitutes an adequate representation of an association? When is a stand (an association individual) to be considered adequate and when is it inadequate, or fragmentary? The answer varies somewhat with the different schools of plant sociology, i.e. it depends upon those aspects of community composition and structure which are emphasized. "Minima of space and number of species are certainly requirements which must be assigned to an association," says Braun-Blanquet. Not only a minimum number of species but the characteristic combination of species must occur on the area in question for the stand to be considered a minimal area. This "characteristic combination of species" would mean, for some plant sociologists, (1) the characteristic coverage of the "dominant species"; for others (2) the characteristic homogeneity of structure as shown by the "constant species," described in terms of presence, constance, and/or frequence; or (3) the presence of "characteristic species," i.e. those of high fidelity. It is apparent, also, that the minimal area will vary greatly for different communities. It is equally obvious that this minimal area, which is said to be one of the characteristics of an association, can be determined only by empirical methods. No concept of minimal area would appear to be certain if based on only one or a few stands of the association. In other words, one must know the association well in order to know what is the "characteristic combination of species." In practice, one may assume fairly that a certain stand is representative of the association if it is extensive relative to the apparent complexity of composition and structure of the community. The species-area curve was quickly recognized as an important tool in community description and was used as a guide in the determination of minimal area of a community. In its original form it was constructed as follows: the number of species found in an association individual (stand) is plotted on the y-axis coordinate with the area of the stand which is plotted on the x-axis. In this manner, when several association individuals of various sizes have been examined, it is found that the species-area points define a characteristic curve. This curve rises rapidly from the intersection of the y and x
235 citations