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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Jurnal Ilmu Pertanian Indonesia Jurnal Silvikultur Tropika (JST) MEDIA KONSERVASI Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences Jurnal Penelitian Hutan dan Konservasi Alam Jurnal Penelitian Hutan Tanaman Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Widyariset PROSIDING SEMINAR NASIONAL CENDEKIAWAN Jurnal Biologi Tropis Jurnal Agrotek Lestari Jurnal Hutan Tropika Widyariset Jurnal Sylva Lestari Biodiversitas Journal of Biological Diversity
Prijanto Pamoengkas
Department Of Silviculture, Faculty Of Forestry And Environment, Institut Pertanian Bogor. Jl. Ulin Lingkar Akademik, IPB Dramaga, Bogor 16680, West Java, Indonesia
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Assessment of Growth and Carbon Stock of 6-Year-Old Dryobalanops lanceolata Triatmojo, Muhammad Reza; Pamoengkas, Prijanto; Darwo
Jurnal Sylva Lestari Vol. 12 No. 2 (2024): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v12i2.854

Abstract

Dipterocarp species are the mainstay of forest products in the form of woodworking. Dryobalanops lanceolata is one of the dipterocarp species. The study aimed to analyze the effect of canopy cover on the growth and carbon storage of 6-year-old D. lanceolata. Data were collected by measuring diameter, height, canopy cover, soil samples, and carbon storage. The research method was carried out by regression between canopy cover and tree diameter and height growth, analyzing soil fertility and carbon content. The 6-year-old D. lanceolata has grown well with a canopy cover of less than 34% (canopy openness of more than 66%) and could grow on clay soil with acidic pH. D. lanceolata at the age of 6 years has been able to improve the nutrient content in the soil. Under 6-year-old D. lanceolata stands, it has provided significant changes to increase the availability of soil nutrients for C-organic, total N, and K-available content. Carbon storage in D. lanceolata has increased in 1 year by 41.91%. Keywords: biomass, canopy cover, carbon growth, Dryobalanops lanceolata
Potential Use of Shorea leprosula for Rehabilitation of Degraded Tropical Production Forest Ecosystems Attarik, Nuriskia; Pamoengkas, Prijanto; Rachmat, Henti Hendalastuti; Susilowati, Arida
Jurnal Sylva Lestari Vol. 12 No. 2 (2024): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v12i2.861

Abstract

The diverse forests in Indonesia require proper management to preserve their delicate ecosystems. Limited production forests (HPT) are prone to damage and require careful rehabilitation to restore them to their original state. Native tree species such as Shorea leprosula are essential for the success of land and forest rehabilitation in HPT areas. This study aimed to assess the potential of S. leprosula species for HPT rehabilitation by examining its growth in the Gunung Dahu Research Forest (GDRF) by measuring the percentage of live plants, tree growth, and soil improvements under S. leprosula stand in sloping land. The results showed that S. leprosula had fast (1.25 cm/year) to very fast (1.79 cm/year) diameter growth, a dense canopy cover with a leaf area index of 2.88, and improved soil physical (soil moisture of 55.54%, topsoil thickness of 6.2 cm, and litter thickness of 16 cm) and chemical properties (pH of 5.2, soil organic carbon of 3.85, total nitrogen of 0.3, carbon-to-nitrogen ratio of 12.8, available phosphorus of 35.3, and exchangeable potassium of 0.76). Therefore, the successful rehabilitation of S. leprosula in GDRF indicates that it can potentially rehabilitate other HPT areas with similar environmental and site conditions. Keywords: Dipterocarpaceae, fast growing, Gunung Dahu Research Forest, limited production forest, land slope
Potentialities of line planting technique in rehabilitation of logged over area referred to species diversity, growth and soil quality PRIJANTO PAMOENGKAS
Biodiversitas Journal of Biological Diversity Vol. 11 No. 1 (2010)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d110108

Abstract

Pamoengkas P (2010) Potentialities of line planting technique in rehabilitation of logged over area referred to species diversity, growth and soil quality. Biodiversitas 11: 34-39. Human interventions in the utilization of tropical forest resources are experiencing unanticipated consequences. The selective logging practices generally cause considerable damage to vegetation and the soil surface. It is supposed that soil condition and vegetation growth rate is deteriorated and reduced. Therefore, scientist strongly argue that the only wayto achieve sustainability of Indonesian natural forest will require that the production natural forest is managed through methods that are acceptable from the perspective of environment as well as timber production. This means that there will be a strong need and incentive for methods and innovative technology. For more than two decades, tropical rainforest in Indonesia have been managed intensively under the Indonesian selective cutting (TPI) and later on by the Indonesian selective cutting and replanting (TPTI) and then, selective cutting and line planting (TPTJ) system. TPTJ, as one example of selective cutting, recently become a proper alternative should be takeninto consideration in the management of production natural forest in Indonesia by planting dipterocarp species in line. In this system, planting line (width 3 m) and intermediate line (width 17 m) are made alternately. The initial width of line is 3 m and to be expanded until 10 m within 5 years to introduce more light. The objective of this research was to assess growth and soil quality of TPTJ system. The object of research was TPTJ plot of various ages from 1 year to 7 years. For achieving the objective, 14 sample plots measuring 200 m x 200 m each, were laid out at research plots. The result showed that growth respond of Shorea leprosula toward the width of planting line was better comparing to Shorea parvifolia, but generally from this growth assessment it seems that individual tree has a successfully performance. In terms of soil quality, it was seen that planting line establishment of 3 m and more, does not cause soil properties decrease in the whole plots.Key words: selective logging, production forest, selective cutting and line planting, dipterocarp species, growth, soil quality.
Genetic implication of Shorea johorensis Foxw propagation methods in selective cutting and line planting silvicultural system ISKANDAR ZULKARNAEN SIREGAR; TEDI YUNANTO; PRIJANTO PAMOENGKAS
Biodiversitas Journal of Biological Diversity Vol. 9 No. 4 (2008)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d090402

Abstract

Attempt to rehabilitate degraded natural forests in Indonesia is recently carried out by applying selective cutting and line planting (TPTJ) silvicultural system. One of the most important aspects of TPTJ silvicultural system is the procurement methods of large number of planting stocks. Shorea johorensis Foxw was investigated in this regards as one of promising Shorea species for rehabilitating degraded forests due to its fast growing character. The species is usually propagated by three different propagation techniques, namely up-rooted seedlings, seeds and cuttings. Genetic consequences due to different propagation methods in this species are poorly known and need to be studied in order to determine genetic variation and differentiation. Material from five origins (populations), namely: (i) up-rooted seedlings, (ii) seeds, (iii) cuttings, (iv) young plantation and (v) natural forest were randomly taken in the field and subsequently assessed by RAPD using threepreviously tested random primers of OPO-11, OPO-13 and OPO-16. Results showed that natural tree populations showed the highest levels of genetic variation with mean values na = 1.2593, ne = 1.2070, PLP = 25.93% and He = 0.1109. Cutting populations showed the lowest levels of genetic variation with mean values na = 1.1111, ne = 1.0773, PLP = 11.11% and He = 0.0445. Meanwhile, according to the propagation techniques, up-rooted seedling population revealed the highest levels of genetic variation with mean values na = 1.2222, ne =1.1613, PLP = 22.22% and He = 0.0886. Particular methods of plant propagation in this company, especially cutting method, reduced significant genetic variation of S. johorensis.Key words: Shorea johorensis Foxw, RAPD, genetic variation, silvicultural system
Stand structure and species composition of merbau in logged-over forest in Papua, Indonesia PRIJANTO PAMOENGKAS; ISKANDAR Z. SIREGAR; AJI NURALAM DWISUTONO
Biodiversitas Journal of Biological Diversity Vol. 19 No. 1 (2018)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d190123

Abstract

Pamoengkas P, Siregar IZ, Dwisutono AN. 2018. Stand structure and species composition of merbau in logged-over forest in Papua, Indonesia. Biodiversitas 19: 163-171. Single selective cutting is the most common form of timber extraction in natural forest in the tropics. Although, vast tracts natural forests are already logged-over, the effect of logging on the structure and species composition has been sparsely documented, especially for merbau (Intsia bijuga). Merbau is an excellent timber species and intensively harvested in Papua. The objective of this study was to analyze the structure and species composition of merbau in the several logged-over forests at different ages, i.e., 1, 5, 11, 16, 21 years old after selective logging and primary forest as the reference plot. The study was conducted in February 2016 at Sarmi District, Papua. The distributions of merbau in each plot varies but when they were compared with that in the primary forest that had reached 9.81%. Thus, the decrease of merbau trees in the plots of logged forest areas was not significant. Index of Diversity of all growth stages was high. In general, the number of merbau seedling regeneration in the study plots are above the average value standardized in Selective Cutting and Replanting System (TPTI) regulation. With regard to the condition of sapling regeneration, we concluded that selective logging might not provide enough growing space for regeneration of merbau. Providing appropriate growing space is one of the key factors to achieve adequate merbau natural regeneration.
Estimating carbon stocks of three traditional agroforestry systems and their relationships with tree diversity and stand density ADISTI PERMATASARI PUTRI HARTOYO; SALMA KHAIRUNNISA; PRIJANTO PAMOENGKAS; ACHMAD SOLIKHIN; SUPRIYANTO SUPRIYANTO; ISKANDAR Z. SIREGAR; LILIK BUDI PRASETYO; ISTOMO ISTOMO
Biodiversitas Journal of Biological Diversity Vol. 23 No. 12 (2022)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d231207

Abstract

Abstract. Hartoyo APP, Khairunnisa S, Pamoengkas P, Solikhin A, Supriyanto, Siregar IZ, Prasetyo LB, Istomo. 2022. Estimating carbon stocks of three traditional agroforestry systems and their relationships with tree diversity and stand density. Biodiversitas 23: 6137-6146. One of the important sectors as a strategy for climate resilience and low carbon development in Indonesia is Forestry and Other Land Uses (FOLU) including the agroforestry sector. Carbon stock and tree diversity in an ecosystem are dynamic over time and still need to be investigated. This study was aimed: i) to estimate aboveground carbon stocks in the traditional agroforestry of Mount Halimun Salak National Park (MHSNP), in Kampung Birang and Kampung Merabu, East Kalimantan, as well as ii) to analyze the correlation between carbon stock with tree diversity and stand density in traditional agroforestry of Mount Halimun Salak National Park (MHSNP), in Kampung Birang and Kampung Merabu, East Kalimantan. The total plots were 75 plots (a plot size of 50x50 m), and carbon stock estimation was focused on pole and tree levels. The average carbon stock in the traditional zone of MHSNP, Kampung Birang, and Kampung Merabu respectively was 51.02 Mg C/ha, 96.25 Mg C/ha, and 82.17 Mg C/ha. The carbon stock in traditional agroforestry of all study sites was very significantly affected by the basal area (m2/ha) (p-val<0.05) with a strong correlation (r = 80% and 97%). The carbon stock was affected by stand density (p-val<0.1) with a very low correlation (r = 27.3%). The carbon stock was very significantly affected by total species (p-val<0.05). However, it had a weak correlation (r = 28.0%). In agroforestry systems, how to manage the agroforestry, socio-economic aspects, ecological site, and market are the main factor in species selection and species maintenance by landowners that indirectly influence biodiversity conservation effort and carbon stock value. The agroforestry system has the potential to become a target and priority location for Indonesia’s FOLU Net Sink 2030 by providing non-timber forest products, which can avoid leakage in forest conservation efforts and carbon stock.
The effect of planting technique on the growth of two Shorea species in Gunung Dahu, Bogor, Indonesia Henti H Rachmat; PRIJANTO PAMOENGKAS; LUSIANA SHOLIHAH; RIZKI ARY FAMBAYUN; Arida Susilowati
Biodiversitas Journal of Biological Diversity Vol. 21 No. 9 (2020)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d210926

Abstract

One of the rehabilitation efforts undertaken by the Forest Research and Development Center in Bogor was to establish a mixed meranti(Dipterocarp) forest in the Gunung Dahu Research Forest, Bogor - West Java. The rehabilitation activities adopted several planting techniques, including total and line planting, used several types of red meranti (Shorea spp.). The purpose of this study was to assess the success of rehabilitation effort by analyzing the growth performance of Shorea leprosula and Shorea selanicastands in which applying total and line planting techniques. Diameter and height, as well as environmental factors such as soil texture, average litter thickness, slope, the average thickness of topsoil, and canopy density, were plant growth parameters that were observed. Growth data analysis was performed using ANOVA and followed by Duncan's test. The results showed that planting techniques affected the diameter growth. The highest growth rate was found in S. selanicaspecies with line planting techniques with the average diameter and height increment was 1.13 cm/year and 0.78 cm/year. Line planting techniques also scored the highest value of basal area and stand volumes, 0.06 m2 and 0.64 m3per year for S. leprosulaand 0.06 m2and 0.66 m3per year for S. selanica.
The growth of Shorea leprosula at various planting distances and slopes in Gunung Dahu Research Forest, Bogor, Indonesia Prijanto Pamoengkas; Henti Hendalastuti Rachmat; Nadya Khalifa
Biodiversitas Journal of Biological Diversity Vol. 21 No. 9 (2020)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d210959

Abstract

Abstract. Pamoengkas P, Rachmat HH, Khalifa N. 2020. The growth of Shorea leprosula at various planting distances and slopes in Gunung Dahu Research Forest, Bogor, Indonesia. Biodiversitas 21: 4396-4404. Shorea leprosula Miq. is one of the species of Dipterocarpaceae family which has great potential to be developed as plantation forestry. This research aimed to investigate the effect of planting distance and slope on the growth of S. leprosula in Gunung Dahu Research Forest, Bogor, Indonesia. Growth variables in terms of height and diameter, and environmental factors were observed in S. leprosula stands at various planting distances and slopes. Analysis results showed that plot with planting distance of 4x6 m produced the best growth of S. leprosula than other planting distances, with the largest increment of diameter and height of 1.49 cm/year and 0.82 m/year, respectively. Slope class did not affect the diameter growth, but it affected the height growth. Slope class flat (0-8%) exhibited height growth of S. leprosula of 0.81 cm/year, which was better compared to other slope classes. Interaction between planting distance of 4x6 m and slope class of rather steep (15-25%) produced the best growth of S. leprosula compared to other interactions with diameter and height increment of 1.64 cm/year and 0.83 m/year, respectively.
Structure, composition and diversity of tree species in Martelu Purba Nature Reserve, North Sumatra, Indonesia AHMAD BAIQUNI RANGKUTI; KANSIH SRI HARTINI; ARIDA SUSILOWATI; RIDAHATI RAMBEY; MOEHAR MARAGHIY HARAHAP; HAFIZAH ARINAH; LASWI IRMAYANTI; PRIJANTO PAMOENGKAS; FITRI INDRIANI; PENIWIDIYANTI PENIWIDIYANTI; ALHARIS RUHIDI
Biodiversitas Journal of Biological Diversity Vol. 24 No. 1 (2023)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d240111

Abstract

Abstract. Rangkuti AB, Hartini KS, Susilowati A, Rambey R, Harahap MM, Arinah H, Irmayanti L, Pamoengkas P, Indriani F, Peniwidiyanti, Ruhidi A. 2023. Structure, composition and diversity of tree species in Martelu Purba Nature Reserve, North Sumatra, Indonesia. Biodiversitas 24: 78-85. Martelu Purba Nature Reserve is one of the conservation areas in North Sumatra that functions to protect biodiversity. However, there is limited information related to the vegetation community contained in the nature reserve. This study aimed to assess the diversity, structure and composition of tree species in the Martelu Purba Nature Reserve as well as to reveal the conservation status of the species in reserve. The research used the line transect method with a total of 112 observation plots representing various vegetation and environmental conditions. The results showed that there were 39 tree species belonging to 25 families, with 31, 25, 24, and 26 species at the tree, pole, sapling, and seedling stages, respectively. Shorea platyclados and Syzygium cerasiforme were species with the highest Important Value Index (IVI) at the tree and pole stages with 173.04% and 31.01%, respectively, while Gamblea malayana was the most important at the sapling and seedling stages with IVI of 66.43%, and 30.00%, respectively. The Shannon-Wiener diversity index (H') was categorized as low (1.58), the Margalef species richness index (DMg) was high at all growth stages, and the Evenness index (E) was high, indicating that all species were evenly distributed across the research plots. The distribution of tree diameter classes ranged from 20 - 40 cm for trees with the smallest diameter to 81-110 cm for trees with the largest diameter. Based on their conservation status, there were two species with conservation concerns, namely Coffea arabica (Endangered) and Lithocarpus maingayi (Vulnerable). The application of good silvicultural methods needs to be carried out in the context of conservation efforts. One example is through vegetative propagation of species with long flowering periods.
Pertumbuhan dan Cadangan Karbon Tegakan Rubroshorea leprosula Miq. Di Hutan Penelitian Gunung Dahu, Bogor: Growth and Carbon Stock of Rubroshorea leprosula Miq. in Gunung Dahu Research Forest, Bogor Cheryn Kania; Prijanto Pamoengkas; Wahyu Catur Adinugroho
JURNAL HUTAN TROPIKA Vol 21 No 1 (2026): Volume 21 Nomor 1 Tahun 2026
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v21i1.25422

Abstract

Plantation forests play a role in mitigating climate change through biomass carbon storage influenced by planting distance. This study aims to analyze the effect of planting distance on the growth and carbon stocks of R. leprosula Miq. with planting years 1997 and 1998 and planting distances of 2m × 2m, 3m × 3m, and 4m × 4m in the Gunung Dahu Research Forest, Bogor. The parameters observed included diameter, height, basal area, stand density, crown density, and carbon stocks, analyzed using analysis of variance (95%). The results showed that planting distance had a significant effect (p < 0.05) on diameter, height, stand density, and crown density. The highest diameter was 47.60 cm at 4m × 4m in 1997 and the lowest was 20.91 cm at 2m × 2m. The highest height at 4m × 4m in 1998 was 22.24m and the lowest was 16.05 m. The highest individual density at 2m × 2m in 1997 was 761.67 ind/ha and the lowest at 4m × 4m was 166.67 ind/ha. The highest canopy density value was at a planting distance of 4m × 4m. Meanwhile, the carbon stock parameter showed results that were not significantly different with the three planting distances, the value ranged from 126.44-158.17 tons C/ha, this indicates compensation between tree size and number of trees per unit area
Co-Authors . Wahyudi . Yulianti ACHMAD SOLIKHIN Adisti Permatasari Putri Hartoyo Adisti Permatasari Putri Hartoyo Adytia Pradnya Murti AHMAD BAIQUNI RANGKUTI Ahmad Iyyannanda Fatir Assifa AJI NURALAM DWISUTONO ALHARIS RUHIDI Almulqu A.A, Elias Andi Sukendro Andry Indrawan ARIDA SUSILOWATI Arida Susilowati Arida Susilowati Iswanto Attarik, Nuriskia Ayi Kulsum Zamzam Azkiya, Dhany Nukhaizal Bambang Hero Saharjo Basuki Wasis Br Lubis, Rizky Febriana Cahyo Wibowo Cahyo Wibowo Cheryn Kania Cut Ade Malinda Darwo Darwo Darwo Darwo Darwo Darwo Darwo Diana Prameswari Diana Prameswari, Diana Dida Syamsuwida Eggy Nugraha Ariansyah Exze Erizilina Fatimah Azzahra Febryandi Randana FITRI INDRIANI Gusti Dianda Sari HAFIZAH ARINAH Hana Afiana Hanifa Rahmah Henti H Rachmat Henti H Rachmat Henti Hendalastuti Rachmat Henti Hendalastuti Rachmat Henti Hendalastuti Rachmat I Indrawan Ika Heriansyah Irdika Mansur ISKANDAR Z. SIREGAR ISKANDAR Z. SIREGAR ISKANDAR ZULKARNAEN SIREGAR Iskandar Zulkarnain Siregar Istomo . Juniar Prayogi KANSIH SRI HARTINI Khoryfatul Munawaroh LASWI IRMAYANTI Laswi Irmayanti Laswi Irmayanti, Laswi LILIK BUDI PRASETYO Lilla Mutia Lubis, Putri Azli LUSIANA SHOLIHAH Meine Van Noordwijk MOEHAR MARAGHIY HARAHAP Mona Fhitri Srena Mudzaky, Rafi Hanif Muhammad Reza Triatmojo MZ, Karina Nadya Khalifa Nining Nurfatma PENIWIDIYANTI PENIWIDIYANTI Puspita Laksmi Maharani Putri Aurum Putri Aurum Rachmat, Henti Hendalastuti Rahmat Prasetia Rahmat Winata Ria Astuti RIDAHATI RAMBEY RIZKI ARY FAMBAYUN Rizki Ary Fambayun Rizki Mardhatillah SALMA KHAIRUNNISA Salma Khairunnisa Salma Khairunnisa Sri Wilarso Budi Supriyanto SUPRIYANTO SUPRIYANTO Susanti . Susanti Susanti Tedi Yunanto TEDI YUNANTO Triatmojo, Muhammad Reza Ulfah Juniarti Siregar Wahyu Catur Adinugroho Wijayanto, Nurheni Yosie Syadza Kusuma Zuhriansah, Alfi Laila