Jurnal Belantara (Universitas Mataram)
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STRUCTURE AND COMPOSITION OF TREES IN THE GIRIMANIK NATURAL FOREST AREA, WONOGIRI, CENTRAL JAVA
Full text linkA tree is a woody plant with a main trunk and branches that grow upwards. Trees play an ecological role as carbon reserves and habitats for various fauna. This research is important to provide references related to tree diversity and natural forest ecosystems as a basis for policy-making to support ecosystem sustainability. Research on tree vegetation has never been conducted in the Girimanik Wonogiri Natural Forest Area, therefore, this study aims to observe the structure and composition of trees in this area. Data was collected using the one-hectare plot method, with 25 plots each measuring 20 x 20 cm. To meet the plot criteria for vegetation analysis, plot placement was carried out using the purposive sampling method. The results of this study show that the Girimanik Natural Forest Area has 40 species from 24 families, with the tree species having the highest importance value index are Quercus lineata and Ficus padana. The plant with the largest diameter is Trema orientalis. Natural forests have the highest tree diversity compared to artificial forests or agroforestry systems
ANALYSIS OF BIRD DIVERSITY AND FEEDING GUILDS IN THE SIMPANG RUSA ECOSYSTEM RECOVERY AREA, SUSUKAN BARU RESORT, WAY KAMBAS NATIONAL PARK
Full text linkThe presence of birds can indicate whether the environment supports the life of an organism or not because it has a reciprocal and interdependent relationship with its environment. The diversity and abundance of bird species can indicate how the area is doing. This study aimed to determine birds' diversity, richness, evenness, dominance, feeding groups, and conservation status in the Simpang Rusa Ecosystem Recovery Area (SRERA). Data collection was done by direct observation in the field using the point count method. A total of 47 bird species from 24 families with a species diversity value (H') of 3.11 in the high category, species richness value (R) 7.62, species evenness value (E) of 0.8 in the good category, and species dominance (C) of 0.07 in the low category. 6 feeding groups were identified, namely insect eaters (53%), fruit eaters (18%), animal material eaters (12%), fish eaters (7%), seed eaters (6%) and nectar eaters (3%). Four protected bird species were found, namely Elanus caeruleus and Spilornis cheela, Gorsachius melanolophus and Rhipidura javanica. Based on the IUCN Redlist, there are two bird species with Near Treatened status, namely the Phaenicophaeus diardi and Cyornis turcosus, one species with Vulnerable status, namely the Acridotheres javanicus, and 42 other species with Least Concern status. Based on CITES, two bird species have Appendix II status. Annual monitoring is needed to monitor the population and mitigate threats as a conservation effort
TIME CONSUMPTION AND PRODUCTIVITY OF BUCKING OF SENGON IN PRIVATE FORESTS
No full textBucking is a forest harvesting stage that determines the quality of round wood. The bucking in private forests uses a chainsaw. Efficient bucking process is a prerequisite for sustainable forest harvesting. The study aimed to analyze the working time and productivity of bucking using a chainsaw in private forests. The study was conducted in private forests planted with an agroforestry pattern in the Probolinggo district, East Java. Working time measurements are carried out based on analysis of video images recorded during data collection in the field. The number of bucking work cycles observed was 31 cycles. Regression analysis was used to analyze the relationship between the logs' diameter and length and the bucking's productivity. The average working time for bucking was 7.09 minutes per cycle, consisting of 77.84% working time and 22.16% non-working time. The average productivity of bucking was 2.51 m3/hour. The study provided important empirical results regarding bucking's working time and productivity in private forests where the type of felled tree was sengon. Hopefully, the study results will be useful in planning and developing bucking techniques in private forests in Indonesia
FEEDING GUILDS OF THE BIRD COMMUNITIES ON PASOSO ISLAND
Full text linkFood is one of the crucial factors for the survival of birds. The interaction between habitats and birds, as well as the role of birds as environmental bioindicators, can be understood through feeding guilds by examining their responses to disturbances. This study aims to analyze the feeding guilds of bird communities on Pasoso Island. The data collection method used was the strip transect method. Data were analyzed using descriptive analysis based on bird species composition according to their guilds. The results of this study show that 33 bird species were found on Pasoso Island, classified into 10 types of feeding guilds. Based on the number of species, the insect-eating guild had the highest number (9 species) compared to other guild categories. The coastal invertebrate-eating guild and raptor guild had the fewest species, with only one species recorded in each. Regarding the number of individuals, the insect-eating guild dominated with 42 individuals, followed by the fruit-eating guild with 29 individuals. On average, the fewest individuals were found in the coastal invertebrate-eating and raptor guilds, with only one individual in each
SOCIO-ECONOMIC CONDITIONS AND HOME GARDEN UTILIZATION BY THE COMMUNITY IN THE CONSERVATION AREA OF WAN ABDUL RACHMAN GRAND FOREST PARK, SUNGAI LANGKA VILLAGE, PESAWARAN REGENCY, LAMPUNG PROVINCE
Full text linkHome gardens have significant potential to improve communities' economic, ecological, and social welfare. This study examines the socio-economic conditions and home garden utilization practices of the community in the Wan Abdul Rachman Grand Forest Park (Tahura WAR) conservation area, located in Sungai Langka Village, Pesawaran Regency, Lampung Province. Data was collected through direct interviews using structured questionnaires, with respondents selected via the Simple Random Sampling method. Descriptive analytical methods were employed for data analysis. The results reveal that 83.33% of farmers in Sungai Langka are adults aged 27–40 years, all male. The farmers belong to three ethnic groups: Javanese, Lampungese, and Sundanese, with Javanese being the majority. Most farmers (63.33%) have a secondary education level, and 83.33% engage in secondary occupations. According to the Indonesian Statistical Agency/BPS (2021) income classification, 74.5% of the population falls into the middle-income category. The average homegarden size is approximately 100 m². The majority of homegardens (90.33%) are utilized as yard gardens, followed by livestock shelters (66.33%), ornamental gardens (40.66%), and fishponds (20.55%). These findings highlight the pivotal role of homegardens in supporting the livelihoods of communities near conservation areas. This study underscores the importance of optimizing homegarden management to enhance community welfare while mitigating pressures on conservation forests
STUDY OF THE COMFORT LEVEL OF GREEN OPEN SPACE IN GEDONG TATAAN SUB-DISTRICT
Full text linkThe conversion of land in urban areas, especially Green Open Space (GOS), into development land causes green land to decrease, coupled with the increasing volume of vehicles. The rapid activity of manufacturing plants and excessive energy consumption are contributing factors to the increase in CO2 in the air, and the quantity and quality of O2 is declining. Green Open Space or city park is an open space that has ecological benefits, the space is filled by trees that form vegetation, socio-cultural benefits as a forum for interaction between visitors, architectural and aesthetic benefits for the beauty of the city that can provide benefits in the form of recreational and tourist spaces for the community. The existence of RTH will improve air quality and comfort in densely populated areas. The method used is to calculate the Temperature Humidity Index (THI). The research aims to analyze the temperature and humidity that affect the comfort level of GOS in Gedong Tataan. Data is taken in October 2023. The results showed that the highest temperature was found in Gedong Tataan Park, which was 34.4 oC, and the lowest temperature was found in Jejama Sidototo Park, which was 25.8 oC. The difference in temperature and air humidity in the two RTHs in Gedong Tataan District is caused by differences in the composition of vegetation types. The diversity of vegetation types can reduce air temperature and increase humidity to provide comfort in both GOSs
OPTIMIZING EUCALYPTUS PELLITA SEEDLING GROWTH THROUGH NPK FERTILIZER AND LIGHT INTENSITY REGULATION
Full text linkEucalyptus pellita is a type of fast-growing plant (fast-growing species). The advantage of this plant is that it is a short rotation or fast-growing plant, with fewer disease attacks. The benefits of the plant are quite numerous and it has high economic value. Considering that the optimal light intensity for eucalyptus seedling growth is not yet known, it is necessary to test the effects of various light intensities using shade in the form of paranet. This research was conducted using a factorial Completely Randomized Design (CRD) with a split-plot experimental pattern consisting of 4 treatment levels. Each treatment was repeated 3 times, The results of the study on the effect of NPK fertilizer and light intensity on the growth of eucalyptus seedlings indicate that the interaction of 5g NPK fertilizer per seedling and 100% light intensity is a better treatment compared to other treatments. This is suspected because eucalyptus is a plant that requires sufficient light intensity to experience the growth of eucalyptus seedlings. The growth of eucalyptus seedlings is influenced by light intensity, which supports the increase in height, stem diameter, and number of leaves. Based on the results of this study, it can be concluded that the treatment with NPK fertilizer and light intensity has a significant effect on increasing stem diameter. In the treatment P2C0, which is NPK fertilizer 7g/seedling and light intensity 100%, there is no significant difference compared to treatments P1C0 and P3C0, which are NPK fertilizers 5g and 9g/seedling at 100% light intensity
MONITORING LAND COVER CHANGE INDICATIVE MAP OF SOCIAL FORESTRY AREA IN PULANG PISAU REGENCY
Full text linkPulang Pisau Regency faces significant pressure from human activities that threaten the sustainability of its forests. The phenomenon of deforestation and land conversion is important for understanding the dynamics of land cover change. Social forestry programs potentially contribute to reducing the rate of change in forest cover. This study aims to analyze land cover change on the Indicative Social Forestry Map (PIAPS) in Pulang Pisau Regency. The research method used Landsat-7 images recorded in 2000 and Landsat-8 images recorded in 2020, PIAPS data, and land cover classification using the Random Forest model with Quantum GIS and Google Earth Engine (GEE) software. The research shows that there has been a significant land cover change over a decade in the Indicative Map of Social Forestry in Pulang Pisau District. Forest cover has decreased from 41,149 ha in 2000 to 23,836 ha in 2020. The average accuracy of land cover showed an OA value of 95% and KA of 92%, which is categorized as good. This study thus highlights the importance of maintaining forest cover to address future land change dynamics through social forestry scheme program
COMMUNITY PERSPECTIVES ON THE EXISTENCE OF WILDLIFE (CASE STUDY IN TALANG PONIJAN AND SIDODADI I)
Full text linkCommunity perspectives are important for wildlife, as they impact their contribution to wildlife conservation. This study aims to analyze community perspectives on wildlife in the Talang Ponijan and Sidodadi I forest farmer groups, Lampung Province, Indonesia. The method in this study uses a qualitative approach through in-depth interviews, involved observation, and documentation studies. The data collected was analyzed descriptively to illustrate how the community's perspective on the existence of wildlife. The results showed that there are similarities in the views of the Talang Ponijan and Sidodadi I communities towards the existence of wildlife. The people of Talang Ponijan and Sidodadi I have a negative view of the existence of wild boar (Sus scrofa), bear (Helarctos malayanus), bajing (Callosciurus notatus), tiger (Panthera tigris), monkey (Macaca fascicularis), and macaque (Macaca nemestrina). Negative views arise because they are considered crop pests and destroy gardens. They are also considered a nuisance and a threat to safety. Gibbon (Symphalangus syndactylus), bats (Chiroptera sp.), and birds have a positive impact as they act as seed dispersers, pest controllers, and coffee quality indicators. However, their behavior towards wildlife sustainability shows differences. Some people in Talang Ponijan are still involved in practices that harm wildlife, such as monoculture, poaching and land clearing. Meanwhile, the Sidodadi I community tends to prioritize wildlife-sustainable agricultural practices such as shade coffee systems and planting high canopy trees. The government needs to provide guidance to increase community capacity and strict and effective law enforcement is important to prevent illegal activities
FOREST FIRE DETECTION BASED ON GOOGLE EARTH ENGINE SEBANGAU NATIONAL PARK
Full text linkSebangau National Park, a peatland conservation area, is particularly vulnerable to forest fires. These conflagrations are most prevalent during the dry season. The objective of this research is to detect and analyze burned areas in Sebangau National Park using the Google Earth Engine (GEE) platform. The analysis will utilize Landsat 8 satellite imagery from 2015. The methods employed for detecting areas that have undergone combustion include the utilization of Normalized Burn Ratio (NBR) and Normalized Difference Vegetation Index (NDVI) indices. The analysis reveals that the burned area, as determined by the NBR index, encompasses 27,567.92 hectares. When assessed using NDVI, the burned area increases to 35,163.44 hectares. The accuracy assessment reveals that the NDVI index exhibits an Overall Accuracy (OA) value of 97.71% and Kappa Accuracy (KA) of 81.46%, which exceeds the NBR by 0.07% and 1.24%, respectively. This finding highlights the enhanced precision of NDVI in detecting vegetation changes resulting from fire events. Consequently, NDVI can serve as a crucial reference point in post-fire mitigation and rehabilitation efforts within peat conservation areas