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Study of Plant Diversity in the Javan Rhino and Conservation Area (JRSCA), Ujung Kulon National Park
Get PDFThe Javan rhinoceros is an endangered animal that is protected according to the Minister of Environment and Forestry No. P.106 of 2018, included in the IUCN Redlist Data Book with the category of critically endangered or endangered animals, listed in Appendix I of CITES. In the framework of the conservation of the Javan Rhinoceros, the Javan Rhino and Conservation Area (JRSCA) is planned to be built in the Ujung Kulon national park area. In order to minimize the negative impact on plants in the area, it is necessary to identify the existence of protected and/or rare plant species, as well as the number of trees to be cut down, so this research is necessary. This study aimed to identify the diversity of plants in the JRSCA area that is not being developed and which will be developed, as well as to identify the species of rhinoceros food plants in the JRSCA area. Field data collection in the study of plant diversity in the JRSCA area used the quadratic method using grid lines and interviews. In the undeveloped JRSCA area, 241 plant species were found; the species diversity index ranged from 3.027 – 3.982 (trees), 2.460 – 3.573 (poles), 1.177 – 3.583 (saplings), and 2.421 – 3.262 (seedlings and understoreys); at various growth rates dominated by 7 species; found 3 species belonging to the VU/Vulnerable category and 1 plant species belonging to the EN/Endangered category according to IUCN; and found as many as 89 species of rhino food plants. In the area of the JRSCA that will be built, 141 plant species are found; density of 2,221 trees; a total of 2,221 trees planned to be felled with a TBC tree volume of 1,214.06 m3 and an TT volume of 2,314.08 m3; and found as many as 1 species including the category VU / Vulnerable according to IUCN
Ethnobotanical Knowledge on Vegetable Plants Among Traders in Ujungberung Market, Bandung, West Java
Get PDFVarious edible plants, including vegetable are commonly traded in traditional markets of Indonesian cities. Three main objectives of this study: firstly, the elaborate local knowledge of traders on species and landraces of vegetable plants that are traded in the traditional market; secondly the origin supply of vegetable plants that are traded in the traditional market; and thirdly, the utilization of various vegetable plants that are traditionally used as the dietary diversity of the households. The research site was located in the Ujungberung traditional market, Bandung City, West Java. The mixed method of qualitative and quantitative with an ethnobotanical approach was applied in this research. The results of the study showed that based on local knowledge of the vegetable traders, it was documented that total 62 species and landraces representing 18 families of the vegetable plants were commonly traded. While based on a botanical taxonomy, it revealed 48 species representing 18 families. Of the 48 species, 9 species have landraces that are used as vegetable. Various vegetable plants that are commonly traded in the market come from the Bandung and surrounding areas. Traditionally, various vegetable plants are generally used as fresh vegetables and processed into special dishes. The benefit of this research is to development of ethnobotany science aspects, including the influence of human culture on edible plants traded in the traditional market of the cities
The Prediction of Locusta migratoria (Linnaeus, 1758) Outbreak under Climate Change Scenario in Indonesia
Get PDFLocusta migratoria (Linnaeus, 1758) is one of the locusts known as important pests of food crops. Outbreaks of this species can cause catastrophic damage to maize, paddy, and many other crops. A species distribution model was used to identify the probability of the locust\u27s current and future potential distribution in the Indonesian archipelago. The study relied on the machine learning method Maximum Entropy (Maxent) Model to forecast the future spread of the species in the Indonesian archipelago and to find the climate variable that influenced the distribution of Locusta migratoria. The results showed an Area Under Curve (AUC) value of 0.956 for the Locusta migratoria model, indicating a highly reliable model. The important variable for the distribution of this species was precipitation, especially during the dry season. A low amount of rainfall increases the possibility of the species existing and being distributed. Maxent prediction models showed the potential distribution in the southern part of the Indonesian archipelago under both middle and worst-case scenarios for 2070. This model can become one of the baselines for early warning systems, targeted monitoring and surveillance, and the use of specific pesticides or biological control agents to prevent or minimize the harm of Locusta migratoria outbreak to agricultural lands in the future
Experimental Study on Tree Shape Identification and Interaction Among Trees
Get PDFForests play a crucial role in mitigating global warming and maintaining climate balance, necessitating a comprehensive understanding of forest dynamics. However, many optical characteristics related to forests remain poorly understood, particularly models for determining forest parameters such as tree species, shape, and inter-tree distances. Although several models exist for estimating leaf area index and photosynthetically active radiation, fewer models address structural forest parameters. This research aims to develop a model using visible and near-infrared radiometer data from Earth observation satellites to estimate forest parameters, including tree species, shape, height, and spacing. Results show that as the distance between trees increases, the impact of multiple reflections decreases significantly. Elliptical tree shapes exhibit approximately three times higher multiple reflection effects compared to conical shapes, indicating potential for distinguishing tree shapes through radiometric data. For canopy shapes, shorter, thicker trees experience more significant reflection effects than taller, thinner trees, suggesting the feasibility of estimating tree height. Overall, the impact of multiple reflections ranges from a few to 10% of TOA radiance, necessitating its consideration when calculating forest reflectance to ensure accurate forest parameter retrieval from satellite observations
Cellular Automata on GIS Method for Forest Fire Spreading Simulation
Get PDFA method for prediction and simulation based on the Cell Based Geographic Information System (CBGIS) as Cellular Automata (CA) is proposed together with required data system systems, in particular metasearch engine usage in a unified way. It is confirmed that the proposed CBGIS as CA has flexible usage of the attribute information that is attached to the cell in concern with location information and does work for disaster of forest fire spreading simulation and prediction
The Vegetation Diversity of the Growth Rate Stand in The PBPH PT. Hutan Mulya Central Kalimantan’s
No full textPT Hutan Mulya is one of the companies engaged in natural forest management, carrying out logging activities that cause changes in the value of species diversity in the remaining stands (LoA). There are 651 individuals of 87 plant species in the LoA area (2016 and 2016) and 63 plant species in virgin forest areas, so there are a total of 32 plant groups. The highest Importance Value Index is found in Meranti Merah (Shorea leprosula Miq) and Suhi (Shorea atrinervosa Symington) in virgin forest areas, while in the LoA area it is dominated by the Jambuan (Syzygium Gaertn) species because it is a source of animal feed and is not produced by companies. The diversity index of tree species, poles, and saplings in virgin forest is high (>3.00), whereas in the LoA area (2016 and 2022), the level of trees is high (>3.00), the level of poles is medium (1.00–3, 00), and the level of saplings for LoA 2022 is low (1.00<). Meanwhile, the virgin forest similarity index and LoA (2016 and 2022) are in the same or medium category, between 0.31 and 1.00
Identification of Place Identity Characteristics in Walking Tour of Peneleh Heritage Kampong, Surabaya City, Indonesia
Get PDFPeneleh Kampong in Surabaya, Indonesia, is a significant heritage area known for its walking tour activities organized by the local community group, Begandring Soerabaia, since 2021. This study aims to identify and analyze the characteristics of these walking tours using the place identity approach, addressing management issues that may affect the area\u27s identity. Data were collected through in-depth interviews with key community members and analyzed using content analysis. The findings reveal 107 characteristic points of walking tour management, distributed across three aspects: physical settings (34 citations, 31.78%), activities (39 citations, 36.45%), and meanings (34 citations, 31.78%). These insights contribute to the preservation of the cultural heritage in Peneleh Kampong and support sustainable tourism development by strengthening its place identity. This research underscores the importance of community involvement and strategic management in enhancing heritage tourism experiences
Population of The Javan Surili Langur Presbytis comata in The Taman Safari Indonesia Bogor Forest Area
No full textTaman Safari Indonesia Bogor is a buffer zone for the Taman Nasional Gunung Gede Pangrango conservation forest area and is one of the habitats for the Javan surili langurs, but there is no research data on wild Javan surili langur populations. The object of research is to find out how many populations of Javan surili langurs are in the TSI Bogor forest area. The research method used the line transect method by collecting data on the number of individuals, the number of groups, the sex ratio, and the age structure. The research was conducted in four observation areas with varying lengths, observations were made at (06.00 - 17.00 WIB), and four repetitions were carried out on each observation path, the results showed that there were 16 Javan surili langurs individuals divided into one group, and the estimated population density was 0.06 individual/ha. The sex diversity of male and female surili langurs in the TSI Bogor forest area is 1:6 where the female Javan surili langurs are more than the male Javan surili langurs and for the age structure the largest Javan surili langurs are in the adult age class with a percentage of 43.75%, juvenile 31.25%, and the percentage of infant is 25%
Phytoplankton in the Anchialine Habitat of Red Shrimp (Parhippolyte uveae) at Mangrove Ecosystem Waters
Get PDFThe anchialine habitat waters of this study is located at mangrove ecosystem around Koguna Beach area, Buton Island, Indonesia. It is a closed water, isolated from the sea, and inhabited by Parhippolyte uveae red shrimp. The existence of phytoplankton in this habitat can be used to determine the availability of natural food and the water quality of this shrimp’s habitat. This study was conducted to examine the presence of phytoplankton in the anchialine habitat of red shrimp. Phytoplankton samples were obtained by filtering water using Plankton Net. Meanwhile, several biological indexes such as the diversity index, evenness index, and dominance index were used to analyze the phytoplankton community. The result showed that this habitat was dominated by phytoplankton from the classes Bacillariophyceae, Florideophyceae, and Globothalamea with a total of 13 genera in September 2021 and Bacillariophyceae, Cyanophyceae, Dinophyceae, and Globothalamea with a total of 18 genera in December 2021. The most common type of phytoplankton found in the red shrimp habitat during the study was Navicula sp. with a ban of 1436 cells L-1 and 479 cells L-1 in September 2021 and December 2021, respectively. The diversity index of phytoplankton in this habitat was low, meanwhile, the index of evenness and dominance indicated that this habitat was of good quality (evenness index was high and dominance index was low). This study can be used as a basic information for further research on the management control for this species habitat
Lowland Tropical Peatlands – A Brief Review of Their Important Role in the Global Carbon Cycle and Biodiversity Support
Get PDFTropical peatlands are crucial ecosystems, storing vast carbon reserves and supporting rich biodiversity. Despite covering a small land area, they play significant roles in global carbon cycling and climate regulation. However, these ecosystems face escalating threats from human activities, including agricultural expansion and peatland drainage. This paper provides a concise overview of tropical peatlands, focusing on their distribution, characteristics, and ecological importance in Southeast Asia, Africa, and South America. It highlights the diverse vegetation communities and notable animal species found in peat swamp forests, underscoring their conservation value. Peatland degradation leads to increased greenhouse gas emissions, land subsidence, and loss of traditional livelihoods for local communities. Addressing these challenges requires integrated approaches, including conservation efforts to protect and restore intact peat swamp forests, sustainable land-use practices, and policy interventions to regulate land management. Research collaboration between scientists, policymakers, and local communities is essential for developing evidence-based conservation strategies. By prioritizing the preservation of tropical peatlands, we can mitigate climate change impacts, conserve biodiversity, and safeguard the well-being of local communities