Wahana Forestra: Jurnal Kehutanan (Online ISSN: 2548-608X | Print ISSN : 1858-4209) published by Fakultas Kehutanan, Universitas Lancang Kuning Pekanbaru. Topics covered are all aspects of forest planning, forestry policy, forest ecology, forest resource utilization, forest inventory, silviculture, forest product processing, forest resource conservation, forest socio-economics and evironment. This journal publish two periode in a year on January and July. Wahana Forestra: Jurnal Kehutanan has been accredited by National Journal Accreditation (ARJUNA) Managed by Ministry of Research, Technology, and Higher Education, Republic Indonesia since year 2022 to 2027 according to the decree No. 79/E/KPT/2023
Fakultas Kehutanan Universitas Lancang Kuning
Analisis Kesehatan Tegakan Di Kawasan Hutan Lindung KHdTK Pujon Hill Universitas Muhammadiyah Malang
Protected Forest Area in KHdTK Pujon Hill at Risk of Damage Due to Land Use for Agriculture. This study aims to analyze the health of forest stands in KHdTK Pujon Hill UMM. The research was conducted from November to December 2023 at KHdTK Pujon Hill UMM. Data collection was carried out using the Forest Health Monitoring (FHM) method, paying attention to pre-determined site criteria. The analysis of stand health involves assessing damage by calculating the percentage of frequency and the level of damage to the forest stands.The results show that the damage frequency reaches 91.8%. The most common damaged parts are the lower trunk, branches, and leaves. The most frequently observed types of damage include open wounds, broken/dead branches, termite attacks, and leaves changing color. The level of damage to the stands in KHdTK Pujon Hill UMM is 52.9%, classified as “moderate.” If left untreated, this could potentially escalate to more severe damage, disrupting the growth and development of the stands. This will negatively affect the health status of the forest area.
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Analisis Kelayakan Finansial Usaha Mata Air Sikumbang Di Sekitar Hutan Larangan Adat Kenagarian Rumbio (Studi Kasus : Desa Pulau Sarak)
The Customary Prohibited Forest of Kenagarian Rumbio offers numerous benefits to surrounding communities, including water springs that serve as an economic resource for Pulau Sarak village. It is crucial to assess the financial feasibility of the Sikumbang Spring business in Pulau Sarak village by calculating Net Present Value (NPV), Internal Rate of Return (IRR), Benefit-Cost Ratio (B/CR), and conducting sensitivity analysis. This study employed descriptive quantitative and qualitative methods, with data collected through a census of 8 respondents. The financial feasibility analysis of the Sikumbang Spring business yielded positive results, including a positive NPV, an IRR exceeding the interest rate, a positive Net B/C, and a Payback Period averaging 3 years and 8 months. These findings indicate that continuing the Sikumbang Spring business is feasible. Sensitivity analysis with a 10% cost increase showed a positive NPV, higher IRR, positive Net B/C, and a Payback Period averaging 4 years and 8 months, further supporting the business's viability.
The Customary Prohibited Forest of Kenagarian Rumbio
Analisis Nonparametrik Laju Deforestasi dengan Model Spline Truncated Berbasis Faktor Sosial Ekonomi di Indonesiaic Analysis of Deforestation Rate with Truncated Spline Model Based on Socio-Economic Factors in Indonesia)
Indonesia is known as the "lungs of the world" due to its vast tropical rainforests, which play a crucial role in absorbing carbon dioxide and maintaining global climate stability. However, the sustainability of Indonesia's forests is increasingly threatened by population growth, agricultural land expansion, and the influx of foreign direct investment—defined as capital inflow from abroad into Indonesia in the form of physical assets or corporate ownership—which can lead to land-use changes and potentially accelerate deforestation if not managed sustainably. These factors have caused fluctuations in the deforestation rate over the past twelve years. This study aims to model the deforestation rate by considering relevant social, economic, and environmental variables. The method used is nonparametric truncated spline regression with a single knot point, which satisfies the assumptions of identically distributed, independent, and normally distributed residuals. The model explains 64.20% of the variation in deforestation rates, while the remaining variation is influenced by other factors outside the model. Forest cover area has been proven to have a significant effect on deforestation. These findings highlight the importance of adaptive and evidence-based policies to reduce deforestation, particularly through forest protection and controlling land conversion, in order to preserve Indonesia's ecosystem sustainability and biodiversity.
Truncated Spline Nonparametric Regression
Etnobotani Tumbuhan Upacara Adat Pernikahan Masyarakat Suku Melayu Rokan Hilir, Provinsi Riau
Ceremony Kelurahan Bagan Barat Kecamatan Bangko District Rokan Hilir Riau Province, was conducted in December 2021. The purpose of this study was to determine the types of plants, plant parts used and the method of cultivating plants by the Malay people. The method used in this exploratory survey research and the sampling technique used snowball sampling. Field data collection was in the form of recording local plant names, the parts used, cultivation methods and utilization methods. The data collected was then analyzed descriptively. The results of the study found 12 types of plants from families. The most common family found is aracaceae (Areca Catechu, cocos nucifera). The plant parts used are divided into four parts, namely leaves, fruits, stems and flowers. For the part that is most widely used namely, fruit. Cultivation carried out by the community is by planting it around local residents' houses, in rice fields and in forests. The most cultivated method is by planting it around local residents' houses.
Keanekaragaman Jenis Vegetasi pada Pola Penanaman Agroforestri Kapulaga dan Non Kapulaga di Gapoktanhut Pujo Makmur KPH Pesawaran
The structure and planting pattern of agroforestry land are determined by its plant diversity. Each pattern has a different management method based on the type of plant and the way the land is managed. Therefore, it is crucial to evaluate the variety of plants that comprise the area. The purpose of this study is to identify the diversity of vegetation in cardamom and non-cardamom agroforestry planting patterns in Gapoktanhut Pujo Makmur, KPH Pesawaran. This study was carried out between October and December of 2024, using a quantitative descriptive method and selective sampling to analyze the vegetation. The results showed that cardamom agroforestry had 19 plant species from 13 families. The stand has 1 forestry plant, 2 agricultural plants, 14 MPTS plants, and 2 bushes. Non-cardamom has 17 plant species from 11 families. The stand has 3 forestry, 2 agriculture, and 12 MPTS plants. Cardamom plants have the highest relative density in Random Mixture agroforestry at 67%. Cocoa plants have the highest density in non-cardamom agroforestry at 37%.
Keanekaragaman Jenis Burung Sebagai Daya Tarik Ekowisata Di Ruang Terbuka Hijau Kota Bogor
Bogor City is an area that has a lot of green open space with an area of ​​2,031.66 Ha or 20% of the total area of ​​Bogor City. The city of Bogor has green open spaces that are designated for the community as spaces for interaction. Green open spaces in the city of Bogor can be a habitat for urban birds. The aim of the research is to identify the potential of birds that can be used as ecotourism resources. The research will be carried out from April to June 2024 in Ahmad Yani City Forest Park, Sempur Park and Heulang Park. Bird data was obtained using the IPA (Index Point of Abundance) method or counting point method and listing bird types based on MacKinnon. Ethnoornithological data and perceptions of sustainability were obtained using structured interview methods and open question questionnaires. Data regarding threats to birds was carried out using a purposive sampling interview method. Bogor City's Green Open Space has bird resources that have the potential to be used as bird ecotourism planning. Resources that can be utilized are objects in the form of 28 types of birds and ethnoornithology.
Potensi Simpanan Biomassa dan Karbon di Jalur Hijau Kota Kupang (Studi Kasus: Jalan Piet A. Tallo, Jalan Frans Seda dan Jalan El Tari)
The increase in the number of motorized vehicles and industrial development can increase air pollution in the form of CO2 gas emissions and causes global warming. Efforts that can be made to reduce the impact of global warming are through building green lanes. The presence of vegetation, especially trees in the green belt, can absorb CO2 gas through the leaves and then store them as carbon reserves. This research aims to look at biomass potential, carbon storage and sequestration potential, and look at the economic value of carbon in the green belt area of ​​Kupang City. Tree data was collected using the census method. Understory plant data collection used techniques purposive sampling with 30 sample plots, each measuring 2 m x 2 m, based on different land cover types. Data analysis includes calculated tree biomass used the allometric equation, estimated understory biomass used the biomass formula, carbon content used a carbon percentage of 47%, and calculated CO2 uptake by multiplyed the carbon value by 3,67. The research results show the biomass potential, carbon storage capacity, and CO2 absorption rate in the green belt area respectively 105,67 tonnes/ha, 49,66 tonnes/ha, and 181,72 tonnes/ha, and an economic valuation of IDR 115,997,639.
Dampak Proses Bleaching terhadap Sifat Kimia dan Mekanis Kayu Karet yang Terinfeksi Blue Stain pada Produk Furnitur
The use of wood for a specific purpose can be done by considering the level of wood durability against wood-destroying organisms. The purpose of this study was to analyze the weight loss and durability level of six types of sawmill industries in Pringgarata District Pemepek Village, Central Lombok using the grave yard test method. This research method used a non-factorial Completely Randomized Design (CRD), including the preparation and making of test samples, testing the natural durability of wood, and determining the resistance class and weight loss of wood after the burial test. The results showed that the value of the loss of weight of the natural durability of sawmill industrial wood in Pemepek Village, Pringgarata District, Central Lombok against subterranean termite attacks with the grave yard test ranged from 3.43 to 8.10%, with moisture content below 10% and a density of 0.34 to 0.89 gr/cm3. The species of wood did not significantly affect the weight loss of wood, but significantly affected the moisture content and density of wood. Overall, the types of sawmill for the wood industry in Pemepek Village, Pringgarata District, Central Lombok is in the clases I, II, and III, classified as highly to moderately resistant
Uji Akurasi Foto Udara di Kawasan Objek Wisata Alam Pulau Semut Pekanbaru
One of the most prominent forms tourism today is ecotourism, and Pulau Semut Nature Tourism Object in Pekanbaru is a prime example of natural tourism area that has embraced this trend. The successful development of this tourist attraction hinges on meticulous planning. Utilizing aerial photographs captured by Unmanned Aircraft Technology (PUTA), managers can access high-quality data that adheres to the standards of the Geospatial Information Agency (BIG) of the Republic of Indonesia. This study aims to assess the accuracy of PUTA aerial photography at Pulau Semut Nature Tourism Object in Pekanbaru. By comparing measurement from aerial photographs and the actual field, accuracy values were calculated using the Commission Omissions method. The resuls showed an impressive accuracy value of 99.03%, with an accuracy error of 0.97%, based on 25 samples of 10 types of research objects. As a consequence, , it can be concluede that PUTA aerial photography can be effectively utilized for regional monitoring, regional development planning, and mapping due to their exceptionally high level of accuracy.
Analisis Perubahan Penutupan Lahan di Taman Hutan Raya Pocut Meurah Intan (Tahura-PMI) Aceh
The study focuses on the analysis of land cover changes in the PMI Forest Park (Tahura PMI) area from 2012 to 2018. It aims to understand the reasons for these changes by utilizing the Geographic Information System (GIS) method and comparing three land use interpretation maps derived from Landsat ETM+ images taken in 2012, 2015, and 2018. The results of the classification show that TAHURA PMI has eight land cover classes, with 2 categorized as forest and 6 as non-forest. Forest management in this area is crucial to prevent further forest degradation and is therefore a key focus of the study.
Model Alometrik untuk menduga volume pohon berdiri Shorea leprosula Miq, PT Gunung Muro Wahana Jaya
The potential of timber forest products is usually assessed using ITSP (Inventarisasi Tegakan Sebelum Penebangan) activities. However, ITSP activities require expensive costs and, a long time, and measurement of branch-free height is difficult due to environmental factors such as topography in the field. One way is to create an allometric model of standing tree volume estimation with the independent variable of diameter at breast height. The study used a purposive sampling method and made 19 plots. The measuring plot area is 5 m x 5 m, 10 m x 10 m, 20 m x 20 m. Measurement of diameter at the breast heigh >10 cm and branch-free height. Conduct R2-adj model fit test, residual standard error, F test, and t-test with 0.05 test level. Validation test using NRMSE and MAPE. The result of the study is the best allometric model to estimate the volume of standing trees is the power model Y= 0.001 D2.380, Y as the volume of standing trees and D as the diameter at breast height. The NRMSE validation test value is 1.02% and MAPE is, 0.32% meaning that the power model has excellent estimation capabilities.
Optimalisasi Penggunaan Lahan dengan Pola Agroforestri di Kampus IV Dusun Bangko, Halmahera Barat
Good forest management practices are hoped to have a positive impact on the economic conditions of local communities around the forest. One form of forest management in Indonesia is agroforestry. Agroforestry is a form of land management system designed to increase productivity and biodiversity, so it is often used as an example of a sustainable land management system. The purpose of this study is to analyze the types of plants planted and the agroforestry planting patterns used. The research method is through observation, inventory and careful documentation of the research being researched. The results of the study show that the agroforestry developed to utilize the land on campus IV, Bangko Hamlet is a simple agroforestry and complex agroforestry with an alternative rows planting pattern or also known as the path system. The types of forest plants developed are white teak (Gmelina arborea), motoa (Pometia pinnata), linggua (Petrocarpus Indicus), lofasa (Vitex cofasuss) and other MPTS plants, namely mango (Mangifera indica), durian (Durio), dragon fruit and banana agricultural crops (Musa Paradisiac), cassava (Manihot esculenta), corn (Zea mays) and several types of horticultural plants.
Keawetan 6 Jenis Kayu Industri Penggergajian di Desa Pemepek, Kecamatan Pringgarata Lombok Tengah
Faktor Penyebab dan Peran Stakeholder Terhadap Permasalahan Perambahan di Kawasan Hutan Produksi (Studi Kasus: Hutan Produksi Manus Mbengan RTK 110 di Desa Rana Kolong Kecamatan Kota Komba, Kabupaten Manggarai Timur Provinsi Nusa Tenggara Timur)
The Manus Mbengan RTK 110 Production Forest Area is one of the forest areas that has undergone changes due to deforestation, manifested in land clearing or the expansion of plantations by the surrounding communities. This research aims to explore the factors driving encroachment and examine the roles played by various stakeholders in managing these issues within the Manus Mbengan RTK 110 Production Forest area, located in Rana Kolong Village, Kota Komba District, East Manggarai Regency. The study adopted a qualitative method with a case study design. For the community, participants were selected using snowball sampling, while stakeholders were chosen through purposive sampling. Data were collected thorough in-depth interviews, observations, documentation and document reviews. The instrument used was an in-depth interview guideline. Data were analised using qualitative thematic. The findings identified five key factors contributing to encroachment (social and economic, forest access, culture, legal leniency toward the perpetrators, and limited personnel for supervising and securing the forest area). Stakeholders have played their respective roles in addressing these challenges.
Analisis Korelasi Keanekaragaman Jenis Pohon dan Burung pada Hutan Kemasyarakatan KPH Batutegi
The Community Forest (HKm) in KPH Batutegi, which functions as a protected forest, provides an ideal habitat for birds through a maintained ecosystem. Birds play an important role as seed dispersers, insect controllers and pollinators, so their diversity needs to be preserved. The aim of this research is to analyze the relationship between bird diversity and tree species diversity. The method used is purposive sampling for counting trees and points for birds, with descriptive analysis using indices of diversity, richness and evenness of species, as well as the Spearman rank correlation test. Research shows that bird diversity (3.07) is classified as high. Species richness (6.49) is good. Species evenness (0.94) indicates a relatively balanced number of individuals. The test stated that there was a significant relationship between bird species diversity and tree diversity at the research location. The more diverse the vegetation, the greater the diversity of birds.
Evaluasi Pengelolaan Hutan Kemasyarakatan (HKm) dan Dampaknya Terhadap Kondisi Hutan di Kelompok Perhutanan Hkm Buli Uher, Desa Ilinmedo Kecamatan Waiblama Kabupaten Sikka
The aims of evaluation of the community forest management of HKm Buli Uher, Ilinmedo Village, Waiblama District, Sikka Regency to observe and assess the implementation of HKm. The method used mixed method between qualitative and quantitative methods. The results of the quantitative method were a scoring evaluation of HKm management, which is based on the weight of several variables, including institutional, community empowerment, HKm area governance, and HKm business governance, as well as data collection on land cover analysis and vegetation analysis. A simple random sample is the first step method in the vegetation analysis process, and a line transect is subsequently used. Meanwhile, the qualitative method is information or data from interviews, observations, and documents related to the management of Buli Uher HKm. The results showed that the management of the Buli Uher HKm in Ilinmedo Village received an assessment with good criteria. In the meantime, the Ilinmedo Protected Forest in HKm Buli Uher experienced a notable reduction in forest conditions in 2023, according to the results of a vegetation study and land cover changes, with vegetation that is changing after being damaged. It happened as a result of the community's logging and forest burning.
Keanekaragaman Tanaman Lokal di Areal Reklamasi Pasca Tambang PT. Mifa Bersaudara, Aceh Barat
The diversity of local plant types is crucial for building a healthy and sustainable ecosystem. The objectives of this research are: (1) Identifying and counting the number of local plants in the reclamation area at the Rina location; (2) Calculate the Importance Value Index, Diversity Index, Dominance Index and Species Evenness Index in the reclamation area at the Rina location. This research uses a survey method with data collection using the census method. All local plants found were identified and counted in number and the circumference and height (strata of saplings, poles and trees) were measured. The results of this research show that 22 types of forest plants were found growing in the PIT Rina PT Reclamation Area. Mifa Brothers, West Aceh with a total of 1112 individuals in a row, in the seedling strata of 603 individuals, saplings of 457 individuals, poles of 43 individuals and trees of 9 individuals; (2) The Species Diversity Index (H') and Species Evenness Index (E) in the PIT Rina Reclamation Area respectively are 2.013 and 0.651, which are moderate. Meanwhile, the Type Dominance Index (C) is 0.223, which is relatively low, dominated by the Laban type (Vitex pinnata).
Pengolahan Gula Aren Sebagai Sumber Pendapatan Utama: Studi Kasus Desa Waemputtange Kecamatan Amali Kabupaten Bone
The world still needs products from the forestry sector, one of which is Non-Timber Forest Products (NTFPs). The NTFPs that are still often found in Indonesia are palm. Waemputtange Village is one of the villages in Amali District, Bone Regency which has sugar palm potential. Sugar palm, which has high economic value, is the dream of the people of Waemputtange Village. This research aims to describe sugar palm processing and calculate an analysis of palm sugar business income in Waemputtangnge Village, Amali District, Bone Regency. The data analysis used is palm sugar processing and income analysis (Total Cost, Total Revenue, and Income Analysis). Based on the research results, it is known that the palm sugar processing process is tapping, cooking, molding and packaging. Meanwhile, based on the results of the income analysis, the annual income obtained is IDR 344,411,750.
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Padatan Tidak Larut Air dan Cemaran Logam dalam Madu Apis dorsata dan Apis mellifera dari Provinsi Riau
This research aims to analyze the content of water-insoluble solids and metal contamination in Apis dorsata and Apis mellifera honey from Riau Province and compare them with the Indonesian National Standard (SNI) 8664-2018 values. The method for assessing the parameters tested, namely water-insoluble solids and metal contamination, refers to the SNI 8664-2018 procedure. The data were analyzed quantitative descriptively, and the influence of honey harvesting location on the parameters tested was analyzed using one-way analyze of variance. One sample t test was used to analyze the comparison of the tested parameters with standard values. The research results showed that the location of origin of A dorsata and A.mellifera honey had a significant effect on the value of water-insoluble solids and lead (Pb) contamination (P < 0.05) but had no effect on cadmium (Cd) contamination (P > 0,05). The results of the one-sample t test showed that the water-insoluble solids and the metal contamination Pb and Cd in all honey samples was very significantly different from the standard value of SNI 8664-2018 (P < 0.01) and met the established standards. The results of this research provide information for consumers that A.dorsata and A.mellifera honey from forest and bee farms in Riau Province is safe for consumption.
Pengaruh Kompos Terhadap Pertumbuhan Cabutan Anakan Bebira (Fagraea crenulata)
The bebira tree (Fagraea crenulata) is a type of plant that grows in the lowlands on flooded land in Indonesia, especially in the provinces of Riau and Central Kalimantan. To reproduce this plant, the right type of media and fertilizer has not yet been found. The research aims to determine the appropriate dose of compost fertilizer as a planting medium for plucked bebira (F. crenulata) seedlings. The study used a completely randomized design consisting of 5 treatments Topsoil PMK 100% + NPK 2 g, Topsoil PMK 75% + Compost 25% + NPK 2 g, Topsoil PMK 50% + Compost 50% + NPK 2 g, Topsoil PMK 25% + Compost 75% + NPK 2 g, Compost 100% + NPK 2 g). The results showed that compost and NPK fertilizers in all treatments produced a survival percentage of 100%, had a significant effect on the increase in height and stem diameter and had no significant effect on the increase in the number of bebira (F. crenulata) leaves. Treatment of 100% compost + 2 g NPK resulted in better growth of bebira seedlings
Persepsi Masyarakat Terhadap Kegiatan Pembasahan Lahan Untuk Restorasi Gambut (Studi kasus Di Desa Merbau Kecamatan Bunut Kabupaten Pelalawan)
The clearing of peat swamp land which is exacerbated by poor water management causes damage to the peat ecosystem and is prone to land fires during the dry season. To overcome this problem, it is necessary to re-wet the land, including by building canal blockings. This study aims to examine community perceptions of land re-wetting activities in the framework of peat restoration in Merbau Village, Bunut Sub District, Pelalawan District. Data collection uses interviews, field observations, and document studies. Informants were selected purposively, namely community members involved and affected by peatland re-wetting activities. Data were analyzed by descriptive qualitative. The results of this study indicate that the community has different perceptions to the peatlands re-wetting using canal blocks built on the community's oil palm plantation land. Some people have a positive perception because they have felt the benefits from a socio-economic perspective and reduced the recurring peatland fires in Merbau Village. They even have the awareness to take care of the existing canal blocks. However, some people still object to the construction of canal blocks on their own land because it will disturb the oil palm plantations and the process of harvesting the palm fruit. Keywords: canal blocking, community perception, Merbau Village, peat.
Identifikasi dan Potensi Jamur Basidiomycota di Taman Hutan Kawasan Pusat Pemerintahan Provinsi Banten
The biodiversity of Indonesia is well-known, and this includes mushrooms. Information on fungal diversity is still scarce, though. The purpose of this study is to identify Basidiomycetes mushrooms in the Banten Province's Central Government Area (KP3B). Roadside, lakefront, and regions with decorative plants were the locations where the exploring techniques were used. The findings showed that ten fungus species belonging to the Orders Polyporales and Agaricales had been found. Six families (each containing one species) were recognized under the Order Agaricales, whereas the Order Polyporales had four species from three families. Roughly half of the fungal species were identified in decaying wood, thirty percent in litter, and ten percent in the soil. Because of their bioactive chemicals, which include anti-bacterial, anti-cancer, antioxidant, and immunomodulatory qualities, the found fungus show promise for medical applications. The results of this study provide basic information for further research on mushrooms.
Upaya Konservasi Burung Maleo (Macrocephalon maleo) Pada Sanctuary Hungayono Taman Nasional Bogani Nani Wartabone
Maleo bird (Macrocephalon maleo) is one of the endemic animals found only in Sulawesi Island. The population is believed to be decreasing every year due to habitat destruction caused by the expansion of agricultural land by people and disturbance from natural predators, as well as threats such as hunting and egg collection by humans. These are the main factors that threaten the survival of Maleo Bird. A survey approach was used that involved direct observation to observe the reality and events that occurred in the field. Direct observation was conducted from 05.00 - 10.00 through a lookout tower at the Maleo Bird nesting site. In addition, an interview method was also conducted to obtain field information directly from the surrounding community who participate in managing the area. Literature study was also used to support the Hungayono Sanctuary's conservation concept in protecting Maleo Bird by maintaining its nesting habitat. The conservation program in Hungayono Sanctuary is to maintain the remaining nesting habitat by building a 'hatchery' or semi-natural hatching tank to help save the Maleo Bird eggs from predators and theft. 'Maleo Foster Parents' which offers tourists to observe the process of maleo birds laying eggs.
Kehilangan Karbon Akibat Drainase Lahan Gambut Pada Pengelolaan Hutan Tanaman Acacia crassicarpa
The development of drainage in Acacia crassicarpa plantations in order to control groundwater levels has an impact on CO2 emissions in the atmosphere. The research aims to predict and analyze the amount of CO2 emissions from drainage development activities in the management of Acacia crassicarpa plantations. The study was conducted in Acacia crassicarpa plantations located in Siak Regency, Riau Province. In this research, peat soil samples were purposively taken from three locations near the drainage points. Measurements were taken for bulk density, water content, ash content, organic carbon content, and emissions from the decomposition process due to drainage channel construction. Peat water content ranged from 542.56 to 1021.62%, bulk density ranged from 0.13 to 0.07 grams/cm3, ash content ranged from 0.66 to 2.48%, and carbon content ranged from 56.55 to 57.62%. The construction of a 3-meter deep canal is projected to result in emissions of 273 tons/ha/year.
Keanekaragaman Hayati dan Peranannya Dalam Ekosistem di Taman Kehati Tanggulangin
Tanggulangin Biodiversity Park is a biodiversity conservation area outside the forest area with an area of 14 Ha located in Tuban Regency, East Java Province, which is a stretch of karst mountain ecoregion where this ecosystem also has an essential element as a water resource buffer area for Tuban Regency. Biodiversity measured in this research includes Flora; vegetation and fauna; aves (birds), herpetofauna (reptiles and amphibians) and insects (Lepidoptera and Odonata) where the method used in sampling flora uses the census method and the method used in sampling fauna uses the Visual Encounter Survey and Point Count methods. The results of the research showed that the Diversity Index (H') value for vegetation was 2.142 with a Richness Index (R) of 4.670, for aves the H' value was 2.474 and the R value was 0.856 for herpetofauna, the H' value was 2.168 and the R value was 0.872 for insects. The H' value is 1.962 and the R value is 0.944. Overall, the Biodiversity Value of Tanggulangin Biodiversity Park is included in the medium diversity level category.
Analisis Tingkat Kesehatan Hutan Lindung Mutis Timau di Desa Fatumnasi Kecamatan Fatumnasi Kabupaten Timor Tengah Selatan
Meeting the needs of the community in the village buffer zone of the protected forest area continues to increase due to the increase in population population that continues to grow every year. Probability of impact increasing population negatively affects the utilization of forest areas and their health. forest area and its health. This study aims to determine the condition of health of the Mutis Timau Protection Forest through indicators of vitality, biodiversity and productivity. This paper uses the Forest Health Monitoring (FHM) method. Results identification results found that there were 475 individuals of 5 tree species that experienced damage, including ampupu (Eucalyptus urophylla), santigi (Vaccinium varingiaefolium), cassowary (Casuarina junghuhniana), pulai (Alstonia scholaris) and mahang (Macaranga mauritiana). The health condition of the Mutis Timau protected forest is in the medium damage category as assessed by the from the vitality indicator, low category for the assessment of the species richness index, medium category for the species diversity index. species richness index, medium category for species diversity index, and low category for evenness index, as well as low category for the for the evenness index, and a high category for the productivity indicator.
Peran Gabungan Kelompok Tani Dalam Pengelolaan Hutan Kemasyarakatan Terhadap Pendapatan Petani Gapoktan Mbohang Desa Bangka Lelak Kecamatan Lelak Kabupaten Manggarai
The aim of this research is to determine the role of combined farmer groups in increasing farmers' income and to determine the contribution of HKm to the income of Gapoktan Mbohang farmers, Bangka Lelak Village, Lelak District, Manggarai Regency. The research was conducted in January – February 2023 at Gapoktan Mbohang, Bangka Lelak Village. 36 respondents were obtained using the stratified random sampling method, the Slovin formula, and analyzed using descriptive analysis and quantitative analysis. The research results show that the role of Gapoktan in increasing farmers' income is: (1) providing input for agricultural businesses, (2) learning forum for Gapoktan Mbohang members to increase knowledge, (3) providing agricultural capital, (4) marketing agricultural products. The HKm program contributes greatly to the income of Gapoktan farmers, divided into 4 strata according to the area of ​​HKm land managed, namely strata I, land area of ​​0.5 Ha, contribution of 81.58%, strata II of land area of ​​1 Ha, contribution of 78.92%, strata III a land area of ​​1.5 Ha contributed 94.12%, and the fourth strata with a land area of ​​2 Ha contributed 91.86%. The average contribution of HKm Mbohang to farmer income is 86.62% per year
VALUASI EKONOMI KARBON PADA TEGAKAN TINGKAT TIANG DAN POHON DI HUTAN ADAT GHIMBO POMUAN KABUPATEN KAMPAR PROVINSI RIAU
Ghimbo Pomuan Indigenous Forest is one of the customary forests in the Riau Province. The existence of Ghimbo Pomuan Indigenous Forest is crucial for the surrounding communities as this forest serves as a watershed area for clean water sources and maintains ecological balance. One of its significant roles is its ability to absorb CO2 to reduce greenhouse gas emissions. This research aims to estimate the economic value of carbon in the Ghimbo Pomuan Indigenous Forest. The study was conducted through a survey to determine the biomass value of the vegetation, both at the pole and tree levels. Allometric equations were used to assess the biomass potential, while carbon valuation utilized the approach of carbon market prices prevailing in the voluntary and regulated markets, such as the Clean Development Mechanism (CDM). The Ghimbo Pomuan Indigenous Forest has a standing biomass of 16,262.896 Mg and a carbon stock of 8,130.976 Mg. The economic value of carbon in the Ghimbo Pomuan Indigenous Forest, located in Kampa Village, Kampar Subdistrict, Kampar Regency, Riau Province, amounts to IDR 2,593,778,502 (free market) and IDR 6,778,407,818.56 (Clean Development Mechanism). Furthermore, it has the capacity to absorb 29,813.546 Mg of CO2 from the atmosphere.
Copyright (c) 2023 Wahana Forestra: Jurnal Kehutanan
PEMAHAMAN MASYARAKAT TERHADAP PENGEMBANGAN RUANG TERBUKA HIJAU MUARA ENIM
Green open space is one component of which the level of availability, both in quality and quantity, must always be taken into account in the urban planning process. This study aims to describe the perceptions of visitors green open space in Muara Enim City, Muara Enim District, Muara Enim Regency and to analyze the potential of green open space for the Adipura Muara Enim City Park in Muara Enim City, Muara Enim District, Muara Enim Regency. This research was conducted in Muara Enim Adipura City Park. The research method is a survey method with a sampling approach using purposive sampling method then the data were analyzed using a Likert scale. The results of the research. Visitor perceptions of the existence of Adipura City Park Muara Enim green open space are included in very good criteria, this can be seen from the level of measurement of the score of visitors' perceptions of the existence of green open space for Adipura City Park Muara Enim as seen from the ecological, aesthetic, social and economic fungi. The average is 32.04 while the development is carried out by the related agency, namely the Housing and Settlement Service in the short, medium and long term.
Green Open Space (RTH), Muara Enim Adipura City Park
ANALISIS SEBARAN HASIL HUTAN JENIS KAYU BULAT DI INDONESIA MENGGUNAKAN ANALISIS KORESPONDENSI
Produksi hasil hutan jenis kayu bulat dipengaruhi oleh faktor geografis seperti letak geografis hutan penghasil kayu yang tersebar di pulau-pulau di Indonesia. Statistik produksi kehutanan Indonesia pada 2020 telah dirilis oleh BPS-Statistics Indonesia dan dianalisis secara deskriptif. Artikel ini menyajikan perspektif lain dari yang telah dipublikasikan oleh BPS-Statistics Indonesia. Analisis sebaran hasil hutan jenis kayu bulat di Indonesia dilakukan dengan pendekatan grafis menggunakan analisis korespondensi. Keterkaitan antara produksi hasil hutan jenis kayu bulat berdasarkan pulau di Indonesia beserta kontribusinya, diidentifikasi dan diinterpretasikan melalui plot asimetris dan biplot kontribusi. Hasil yang diperoleh menunjukkan bahwa terdapat keterkaitan yang erat antara jenis kayu akasia dengan Pulau Sumatra, kelompok meranti dengan Pulau Kalimantan, kelompok indah dengan Jawa, dan kelompok eboni dengan Pulau Maluku & Papua. Lebih lanjut, kelompok meranti merupakan kategori jenis kayu yang memiliki kontribusi paling besar di dalam analisis. Kata kunci: analisis korespondensi, produksi kayu bulat, plot asimetris, biplot kontribusi