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Rizal, Moh
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Journal : Jurnal Hutan Tropika

 1 
PERAN TEGAKAN SENGON DI HUTAN TANAMAN INDUSTRI DALAM MITIGASI PERUBAHAN IKLIM GLOBAL (The Role of Sengon’s Stand at Forest Plantation in Global Climate Change Mitigation) Junaedi, Ajun; Rizal, Moh
Jurnal Hutan Tropika Volume 14 Nomor 2 Tahun 2019
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v14i2.1149

Abstract

This research aims to estimate the biomass, carbon storage, carbon dioxide uptake and oxygen produced by sengon (Paraserianthes falcataria (L.) Nielsen) stand aged 9, 11 and 13 years in IUPHHK-HTI PT Parwata Rimba, Central Kalimantan. Estimated of biomass, carbon stock, CO2 uptake and Oxygen produced using allometric equations. The results showed that the storage of sengon standing biomass aged 9,11 and 13 years ranged from 110.71 to 200.94 tons/ha, carbon stock ranged from 52.03 to 94.44 tons C/ha, CO2 uptake ranged from 190.79 to 259.13 tons CO2/ha and Oxygen produced around 138.75 to 251.84 tons O2/ha. The total of biomass, carbon stock, CO2 uptake and Oxygenproduced by sengon stands at forest plantations are large enough to have an important role in global climate change mitigation in the forestry sector.
Karakteristik Sarang dan Kepadatan Populasi Orangutan (Pongo pygmaeus wurmbii) Di Zona Khusus Laboratorium Alam Hutan Gambut Taman Nasional Sebangau Kalimantan Tengah: Orangutan (Pongo pygmaeus wurmbii) Nest Characteristics and Population Density in The Special Zone of The Peat Natural Forest Laboratory of Sebangau National Park Central Kalimantan Rizal, Moh; Sinaga, Fani Delima Sari; Octavianus, Robby; Junaedi, Ajun; Luhan, Gimson
HUTAN TROPIKA Vol 18 No 2 (2023): Volume 18 Nomor 2 Tahun 2023
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v18i2.11955

Abstract

This study aimed to identify nest density and orangutan (Pongo pygmaeus wurmbii) population as well as nest characteristics (nest tree type, nest tree height, nest tree diameter, nest age class, nest location) in the special zone of the Peat Forest Nature Laboratory (LAHG) of Sebangau National Park, Central Kalimantan. The research used the strip transect method with the length of each line ± 1000 m and a width of 20 m on each right and left side of the line as many as 5 transect lines. The objects of observation were orangutans, orangutan nests, and nest trees along the transect lines. The results showed that the average density of orangutan nests in the LAHG special zone of Sebangau National Park in Central Kalimantan was 375.17 nests/km2 with an estimated orangutan population density of 0.987 individuals/km2. Characteristics of orangutan nests found in the research location include: the most common tree species used as a place to make orangutan nests is Tarantang (Campnosperma coriaceum (Jack) Hallier f.) from the Anacardiaceae family. The height and diameter of the most dominant trees used as orangutan nests ranged from 11-15 m and 11-20 cm, respectively. The height of orangutan nests from the ground ranged from 11-15 m, the class of nests included class B, and the position of nests included category 4.
Perspektif Masyarakat Tumbang Nusa terhadap Kegiatan Pemadam Kebakaran oleh Manggala Agni : The Community of Tumbang Nusa's Perspective on Fire Fighting Activities by Manggala Agni Surasana, I Nyoman; Rizal, Moh; Kosmardianto, Hery
HUTAN TROPIKA Vol 18 No 2 (2023): Volume 18 Nomor 2 Tahun 2023
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v18i2.11958

Abstract

The research aimed to assess villagers’s perception of Tumbang Nusa Village on the fire fighting activities (forest and land) by Manggala Agni (or Manggala Agni activities) and the relationship of each community's socio-economic variables with that view. The research is descriptive in nature using scoring, the object of research for the people of Tumbang Nusa Village, is analyzed by the Wilcoxon Rank Test and Chi Square Test. The results showed that there were differences in people's views on Manggala Agni activities between people who lived close to the fire disaster location and people who lived far from the fire location, there was also a relationship between the socio-economic variables of the community and the community's views on Manggala Agni activities.
Komposisi Jenis, Serapan Karbon Dioksida dan Produksi Oksigen Vegetasi Berkayu di Hutan Kemasyarakatan Batu Bulan Kabupaten Gunung Mas Kalimantan Tengah: Species Composition, Carbon Dioxide Uptake and Oxygen Production of Woody Vegetation in The Batu Bulan Community Forest Gunung Mas District, Central Kalimantan Junaedi, Ajun; Aruan, Jenifer; Yosep, Yosep; Penyang, Penyang; Surasana, I Nyoman; Rizal, Moh
HUTAN TROPIKA Vol 19 No 1 (2024): Volume 19 Nomor 1 Tahun 2024
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v19i1.13188

Abstract

Community Forestry is one of the schemes in provides access to forest management legally to the community, so community forestry has a role in supporting the sustainability of forest functions. In line with the principles of sustainable forest management, community forestry management is required to maintain a balance of ecological, economic, and social aspects. The purpose of the study was to identify the species composition and estimate the potential biomass reserves, carbon, carbon dioxide (CO2) absorption, and oxygen (O2) production of woody vegetation in the Batu Bulan Community Forest, Tusang Raya Village, West Rungan District, Gunung Mas Regency, Central Kalimantan Province. Vegetation data collection with vegetation analysis techniques using the plot line method. Data from the analysis of woody vegetation was then calculated for the number of species, Shannon Wienner species diversity index (H'), vegetation density, and Important Value Index (IVI). Calculation of vegetation biomass using destructive and non-destructive methods. While the calculation of carbon, CO2 uptake, and O2 production of woody vegetation were each calculated using SNI 7724 (2019), IPCC (2006), and Nowak et. al (2007). The results showed that the number of woody vegetation species found was 31 species included in 19 families with a Shannon Wienner species diversity index value of 2.81 ("medium" category). Tree and pole-level woody vegetation was dominated by Laban (Vitex pubescens Vahl.), while sapling and seedling levels were dominated by Rubber (Hevea brasiliensis) and Palasit (Canarium sp), respectively. The potential reserves of biomass, carbon, CO2 uptake, and O2 production of woody vegetation were 70.12 tons/ha, 32.81 tonsC/ha, 120.96 tonsCO2/ha, and 88.01 tonsO2/ha, respectively.  
Kajian Tingkat Kerawanan Erosi Tanah Berbasis Spasial dan Survei Lapangan di Kecamatan Tewah, Kabupaten Gunung Mas, Provinsi Kalimantan Tengah: Assessment Of Soil Erosion Vulnerability Level Based on Spatial and Field Survey In Tewah Sub-District, Gunung Mas Regency Central Kalimantan Province Saputra, Jodi; Sukarna, Raden Mas; Junaedi, Ajun; Rizal, Moh
HUTAN TROPIKA Vol 19 No 2 (2024): Volume 19 Nomor 2 Tahun 2024
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v19i2.16588

Abstract

This study aims to identify and map the level of soil erosion vulnerability in Tewah Sub District, Gunung Mas Regency, Central Kalimantan Province. Identification of the level of soil erosion vulnerability was carried out using parameters of slope, soil type, rainfall and land cover. Field surveys were conducted to collect data on the area of ​​tree canopy cover at each level of erosion vulnerability. The results of the study indicate that in Tewah Sub District, which is included in the Kahayan Sub-Watershed have 5 levels of soil erosion vulnerability with categories of not vulnerable, less vulnerable, quite vulnerable, vulnerable and very vulnerable. Furthermore, it is known that ±50.23% of the research location area is included in the category of quite vulnerable and only ±0.29% is included in the category of not vulnerable. The value of ​​tree canopy cover has a significant effect on the level of soil erosion vulnerability. The higher the area of ​​tree canopy cover, the lower the level of erosion vulnerability. Thus, it can be concluded that erosion vulnerability due to lack of forest cover, especially in Tewah Sub District, must be a priority in handling to support the carrying capacity of the environmental ecosystem.
Kontribusi Serapan Karbondioksida Tegakan Balangeran (Shorea balangeran (Korth.) Burck) dan Meranti Tembaga (Shorea leprosula Miq.) dalam Aksi Mitigasi Perubahan Iklim: Contribution of Carbon Dioxide Uptake The Stands of Balangeran (Shorea Balangeran (Korth.) Burck) and Copper Meranti (Shorea Leprosula Miq.) in Actions Climate Change Mitigation Junaedi, Ajun; Saragih, Harry Martua; Yosep, Yosep; Indrayanti, Lies; Yulianti, Reri; Rizal, Moh
HUTAN TROPIKA Vol 20 No 1 (2025): Volume 20 Nomor 1 Tahun 2025
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v20i1.20038

Abstract

This study aims to identify the distribution pattern of stem diameter and estimate the potential of biomass storage, carbon and CO2 uptake above ground of Balangeran (Shorea balangeran (Korth.) Burck) stands aged ± 5 years in the People's Seedling Garden and Copper Meranti (Shorea leprosula Miq.) aged ± 7 years in the Green Campus Seedling Garden of Palangka Raya University. The calculation method of estimating biomass and carbon storage and CO2 uptake of Balangeran and Copper Meranti stands in a non destructive manner using the Jaya et. al (2007), Heriansyah et. al (2009), SNI 7724 (2019) and IPCC (2006) allometric equations. The results showed that the distribution pattern of the diameter class distribution of Balangeran and Copper Meranti stands resembled a bell/ginger-shaped curve. The stem diameter class of Balangeran stands is dominated by 5-7 cm and Copper Meranti 8-10 cm. Balangeran stands have potential biomass storage of 70,715 tons/ha, carbon of 33,236 tonsC/ha and CO2 uptake of 121,976 tonsCO2/ha. While Copper Meranti stands have potential biomass storage of 29,307 tons/ha, carbon of 13,774 tonsC/ha and CO2 uptake of 50,552 tonsCO2/ha. Balangeran and Coper Meranti stands have a strategic contribution to climate change mitigation actions.
Rekayasa Kayu Eucalyptus pellita F. Muell Dengan Teknologi Oil Heat Treatment (OHT) : Wood Engineering Eucalyptus Pellita F. Muell With Oil Heat Treatment (Oht) Technology Siska, Grace; Christy, Eva Oktoberyani; Sihombing, Markus; Rizal, Moh; Pidjath, Chartina
HUTAN TROPIKA Vol 20 No 1 (2025): Volume 20 Nomor 1 Tahun 2025
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v20i1.20251

Abstract

Eucalyptus pellita F. Muell is a plant that is widely developed in Indonesia's Industrial Plantation Forest (HTI), because this plant is a fast growing wood. Eucalyptus pellita F. Muell wood has weaknesses in terms of durability quality and strength of its wood. Therefore, an environmentally friendly and effective application of technology is needed. Oil Heat Treatment (OHT) is one of the environmentally friendly and appropriate wood technologies because there are no chemicals during the treatment process. This study aims to determine the effect of the duration of OHT time of 1 hour, 2 hours and 3 hours with a temperature of 200 ± 2°C on changes in the physical properties of wood mechanics of Eucalyptus pellita F. Muell. The research results indicate that the heat treatment method known as Oil Heat Treatment (OHT) using used cooking oil can reduce the moisture content of wood over the duration of heating, as well as increase the density, Modulus of Elasticity (MoE), and Modulus of Rupture (MoR) of Eucalyptus pellita F. Muell wood, although the statistical analysis in the study showed that the treatment did not have a significant effect.
Co-Authors Aruan, Jenifer Christy, Eva Oktoberyani Cornelis, Vieta Imelda Gimson Luhan Indrayanti, Lies Junaedi, Ajun Kosmardianto, Hery Penyang, Penyang Pidjath, Chartina Raden Mas Sukarna, Raden Mas Robby Octavianus Saputra, Jodi Saragih, Harry Martua Sihombing, Markus Sinaga, Fani Delima Sari Siska, Grace Sitti Nurkhaerah SRI ASTUTIK Surasana, I Nyoman Syarif Hasyim, Muhammad Yosep Yosep Yulianti, Reri