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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Jurnal Ilmu Pertanian Indonesia MEDIA KONSERVASI Jurnal Ilmu Lingkungan Jurnal Penelitian Hasil Hutan Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Belantara Jurnal Penelitian Hasil Hutan Jurnal Sylva Lestari JURNAL HUTAN TROPIS Jurnal Penelitian Hasil Hutan

Ahmad Budiaman

Department Of Forest Management, Faculty Of Forestry And Environment, IPB University, Academic Ring Road, Campus IPB Dramaga, Bogor, Indonesia 16680

Author-ID : 243894

Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Environmental Science Materials Science & Nanotechnology

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ESTIMASI POTENSI BIOMASSA DAN MASSA KARBON HUTAN TANAMAN Acacia crassicarpa DI LAHAN GAMBUT (Studi Kasus di Areal HTI Kayu Serat di Pelalawan, Propinsi Riau) Yuniawati, Yuniawati; Budiaman, Ahmad; Elias, Elias
Jurnal Penelitian Hasil Hutan Vol 29, No 4 (2011): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Peran hutan sebagai penyerap dan penyimpan karbon tidak diragukan lagi untuk mengurangi jumlah karbon di atmosfer bumi sehingga mencegah efek gas rumah kaca (GRK) yang dapat menyebabkan pemanasan global. Diantara berbagai jenis hutan, terdapat jenis hutan gambut yang berfungsi sebagai penyimpan karbon terbesar. Penelitian dilaksanakan di hutan tanaman kayu serat spesies Acacia crassicarpa yang tumbuh di lahan gambut, secara administratif di bawah perusahaan pulp dan kertas di Pelalawan, propinsi Riau. Penelitian ini bertujuan untuk memperoleh persamaan alomterik yang terkait parameter pertumbuhan pohon A. crassicarpa yaitu diameter pohon (D) dan tinggi baik sebagai total (Htot) atau cabang bebas (Hbc) untuk hasil pertumbuhan biomassa (W) dan massa karbon ( C). Metode penelitian ini dilaksanakan dengan menggunakan contoh dari pohon A. crassicarpa dengan umur berturut-turut 2,3,4 dan 5 tahun (antara lain batang utama, cabang, ranting, daun dan akar). Contoh tersebut dilakukan pengujian di laboratorium, dengan menguji kadar air, berat jenis, kadar abu, kadar zat terbang dan kadar karbon. Hasil persamaan alometrik yang diperoleh digunakan untuk mengukur dan memperkirakan potensi biomassa dan massa karbon dari tegakan pohon A. crassicarpa pada kelompok umur, yaitu 2,3,4 dan 5 tahun. Persamaan alometrik yang tepat dan paling mewakili adalah W = 0.398918D2,041Hbc0.165(untuk menghitung potensi biomassa) dan C = 0.131D1.246 Htot1.175(untuk menghitung potensi karbon). Penggunaan persamaan alometrik tersebut, akan menghasilkan potensi biomassa (W) A. crassicarpa untuk kelompok umur 2,3,4 dan 5 tahun berturut-turut yaitu 44,98 tons/ha, 70,35 tons/ha, 134,05 tons/ha dan 234,78 tons/ha. Sedangkan untuk nilai potensi massa karbon ( C ) sebesar 12,09 tons/ha, 36,23 tons/ ha, 76,09 tons/ha dan 133,10 tons/ha, masing-masing untuk kelompok umur pohon (2,3,4,5 tahun). Untuk menarik kesimpulan hasil penelitian ini bahwa pada berbagai umur tegakan pohon A. crassicarpa dan berbagai bagian pohon memberikan perbedaan nyata didalam biomassa dan massa karbon. Informasi penting ini patut mendapat perhatian secara menyeluruh untuk memperkirakan potensi biomassa dan massa karbon di pohon tertentu dengan tepat dan handal.

Simulasi Pembagian Batang Sistem Kayu Pendek pada Penebangan Pembagian Batang Kayu Serat Jenis Mangium (Simulation of Shortwood Bucking System on Bucking Pulpwood of Mangium) Ahmad Budiaman; Rendy Heryandi Prabowo
Jurnal Manajemen Hutan Tropika Vol. 14 No. 2 (2008)
Publisher : Institut Pertanian Bogor (IPB University)

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This paper presented results of simulation of shortwood bucking system on bucking pulpwood of mangium (Acacia mangium) at an industrial plantation forest in South Kalimantan. A set of logs bucking policy of short wood system, which was applied in the state owned company (Perum Perhutani), was used in the bucking simulation, which divided logs into large logs assortment (KBB), medium logs assortment (KBS), and small logs assortment (KBK). The KBB represented veneerlogs, KBS represented sawlogs, whereas KBK represented pulplogs. The result of the study indicated that application of bucking in varieties wood assortments resulted in a potential number of high quality logs of mangium. The results of the proposed logs bucking were 22% large logs, 54% medium logs and 24% small logs. In the other side, application of pulpwood bucking policy only resulted to 4.7% large logs, 64.2% medium logs and 23.3% small logs.

Pengeluaran Limbah Penebangan Hutan Tanaman Industri dengan Sistem Pemikulan Manual Ahmad Budiaman; Agus Rahmat
Jurnal Manajemen Hutan Tropika Vol. 15 No. 3 (2009)
Publisher : Institut Pertanian Bogor (IPB University)

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This paper presented result of the study on extraction of felling waste by manual bundling systems: assessment of qualitative performance The study is carried out at an Industrial Plantation Forest in South Kalimantan. Two bundling methods were apllied in this study, i.e. bundling by the use of net and rope. The results of the study showed that adaptation level of workers for the systems were good enough. The most mistaked work elements for both methods was compacting the waste for bundling, while the less mistaked work element was unload travel to the waste location.

Waste of Felling and On-Site Production of Teak Squarewood of the Community Forest Ahmad Budiaman; Putri Komalasari
Jurnal Manajemen Hutan Tropika Vol. 18 No. 3 (2012)
Publisher : Institut Pertanian Bogor (IPB University)

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Major suppliers of teak wood for the raw material of furniture industry in Indonesia are Perum Perhutani, community forests, and private forests. Community teak forest management produce roundwood or squarewood, in which squarewood is produced on the felling site by the use of chainsaw after felling and bucking activities. Utilization of teak wood from community forest has been practiced for decades, however information on the extent of utilization and the quantity of wood waste have not been published to a greater extent. The present research was intended to determine and analyze the extent of utilization and teak wood waste produced from felling and bucking, and on-site squarewood production of community forests. Quantification of wood waste from felling and bucking was based on the whole tree method, while that of squarewood production was based on the percentage of yield. It was found that the quantity of teak felling and bucking wood waste in community forest was reaching 28% of felled wood volume that consisted of branch and twig (46.15%), upper trunk (30.77%), short cut off (15.38%), and stumps (7.69%). The largest part of the wood waste of teak felling and bucking satisfied the requirement as raw material of wood working industry according to Indonesian National Standard. On-site production of squarewood increased the quantity of wood waste in the forests (in the form of slabs and sawdust).

Assessment of Forest Road Network Alternatives for Pine Resin Extraction Ahmad Budiaman; Heryana
Jurnal Manajemen Hutan Tropika Vol. 19 No. 1 (2013)
Publisher : Institut Pertanian Bogor (IPB University)

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Pine resin, one type of non-timber forest products (NTFPs), is important for Indonesia. In addition to its high economic value, pine resin also has bright domestic and international market prospects. Utilization of commercial pine resin has been carried out in Indonesia, but the forest road network required for extracting pine resin has not been specifically planned. To date, the planning and selection of forest road network in forest management in Indonesia are intended only for the extraction of timber products and have not been integrated with the use of NTFPs; also, they have not considered the economic, ecological, and social aspects a whole. Planning and selection of forest road network have focused more on economic aspects only. This study aimed at planning and assessing the forest road network for extracting pine resin by considering the economic, ecological, and social criteria. Decision-making method used to select the best forest road network was utility analysis. Indicator used included road length, road density, a correction factor for manual carrying of pine resin, pine resin carrying distance, road construction cost, and productivity of carrying and extracting pine resin. The result of the utility analysis indicates that an alternative of forest road network for extracting pine resin has no the whole best indicators, but it has the highest utility value. This study suggested that the use of the utility analysis help the decision makers to selects process for forest road network alternative easily and rapidly.

Low Impact Felling Distance and Allowable Number of Felled Trees in TPTI System Ahmad Budiaman; Adita Agung Pradata
Jurnal Manajemen Hutan Tropika Vol. 19 No. 3 (2013)
Publisher : Institut Pertanian Bogor (IPB University)

Indonesian Selective Cutting and Planting System (TPTI) is a silvicultural system of production natural forests management conducted in Indonesia. TPTI implementation has resulted in damage to the residual stands and threatened the existence of production natural forests in Indonesia. This study assessed the damage level of the residual stands of commercial species due to low cutting intensity (0.77 trees ha-1), calculated low damages cutting distance, and determined the number of trees ha-1 which could be harvested sustainably. Dynamic sample plots with a circular shape with a radius of 2 times the height of felled trees were used in this study, and the number of sample plots was 29 plots with an average area of 1.3 ha. In the sample plots, the tree species, total height, diameter at breast height (dbh), and number of commercial trees ≥ 10 cm dbh were measured before and after cutting. The results showed that the damage level of residual stands caused by the low cutting intensity was 2.1%, where the damages included broken stems, splitted stems, and injured stems, leaning trees, fallen trees, broken crowns and broken buttresses. The low cutting intensity had damaged 7 commercial tree species with the diameter ≥ 10 cm. The study recommends sustainable cutting on TPTI with a distance of > 1.5 times the height of felled trees and the number of trees ha-1 that may be sustainably felled is no more than 5 trees ha-1.

Development of Line Intersect Method for Logging Residue Assessment of Teak Sarah Andini; Ahmad Budiaman; Muhdin Muhdin
Jurnal Manajemen Hutan Tropika Vol. 23 No. 2 (2017)
Publisher : Institut Pertanian Bogor (IPB University)

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Line intersect method (LIM) emerged as one of the effective and efficient post-harvesting assessment methods. LIM was being widely used to estimate logging residue of plantation forest in the temperate zone. This method has not been used in tropical forest plantations, including teak forests. The study was carried out to determine the best design of LIM for assessing logging residue in the teak plantation. The circular and rectangular plot was used in this study. A hundred percent logging residue inventory was carried out on each plot. Then, one and combination of two and three line intersects per plot were placed on each plot. Bias, precision and accuracy criteria were calculated in order to compare the designs. The study found that estimation of logging residue volume using LIM was biased and tended to overestimate. LIM design with two lines combination per plot was the best design for assessing logging residue of the teak plantation.

Impacts of Clear Cutting on Diversity of Ground Ants (Hymenoptera: Formicidae) in Pine Plantation Forest in Sukabumi Forest Management Unit, West Java Ahmad Budiaman; Noor Farikhah Haneda; Adhiguna Indra nugraha; Frama Haikal
Jurnal Manajemen Hutan Tropika Vol. 27 No. 1 (2021)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.7226/jtfm.27.1.42

Clear cutting is the main source of timber production of plantation forest management in Indonesia, but this activity disrupts the lives of ground ants. It is rarely known how clear cutting affects the ground ant community in the Indonesian plantation forest. The study aimed to analyze the impacts of clear cutting on the diversity of ground ants in the pine plantation forest of Sukabumi, West Java. The study compared the community structure of ground ants before clear cutting and after clear cutting. Ground ants were collected using a pitfall trap. Trapping of ground ants was carried out six days before the clear cutting and six days after the clear cutting. The ground ants were identified to the morphospecies level and classified into their functional role. The results showed that clear cutting alters the community indices of ground ants. Abundance, morphospecies composition, diversity index, richness index, and evenness index of ground ants after clear cutting was lower compared with those before clear cutting. The clear-felled area due to clear cutting provided favorable habitat for the generalist groups of ground ants, but negatively affected the predator and forager groups of ground ants. These findings can be used as an important factor in the development of environmenllyt-friendly forest harvesting systems in Indonesian plantation forests.

Kayu Limbah Penebangan Intensitas Rendah di Izin Usaha Pemanfaatan Hasil Hutan Kayu-Hutan Alam Ahmad Budiaman; Farikh Munir Mubarak; Winda Lismaya
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 1 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Forest harvesting of natural-forest production in Indonesia is carried out with a high felling intensity, thus has changed the forest biomass. Several studies have shown a strong correlation between harvesting intensity and the reduction of wood volume in the forest. This condition may disrupt the stability of forest ecosystem. This study aimed to calculate and classificate logging residue of low-harvest intensity (one tree plots-1) in Indonesian Forest Concession. The study was conducted in private concessions in North Kalimantan and West Papua. Measurements were made in 30 dynamic circular sample plots with a radius of 2 times the height of the felled tree. The average size in North Kalimantan was 2.5 ha plot-1 and in West Papua was 1.5 ha plot-1. The sample plots were randomly placed in the cutting compartment. All logging residues with dbh ≥10 cm were measured after felling. The logging residue is classified into felled and unfelled trees and four types of logging residue (fallen tree, broken stem, stump, branches and twigs). The low felling intensity produced logging residue ranging from 4.98-5.55 m3 ha-1. The result indicated that logging residue came from felled trees (66%) was higher than those from unfelled trees (34%). The most common type of logging residue of felled tree was branches and twigs, broken stem and stump. The logging residue came from unfelled tree dominated by fallen tree followed by broken stem, branches, and twigs. Keywords: felling intensity, forest conservation, natural forest, selective cutting

Tebang Pilih Mengubah Keanekaragaman Semut Tanah Hutan di Kalimantan Timur, Indonesia Ahmad Budiaman; Noor Farikhah Haneda; Laela Nurahma
Jurnal Ilmu Pertanian Indonesia Vol. 26 No. 2 (2021): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.26.2.251

This study assesses the short-term effects of selective cutting on the diversity of ground ants (Hymenoptera: Formicidae) in the secondary rainforest. Ground ants were collected using a pitfall trap in a circular sample plot of 0.5 ha. A total of nine sample plots were randomly placed in a 98-ha cutting compartment. Fifteen pitfall traps were planted in each circular plot. A total of 135 pitfall traps were established in the cutting compartment. The average cutting intensity of 8 trees/haas applied in the cutting compartment. Insect sampling and measurement of environmental factors were carried before cutting and two days after cutting. In this study, the abundance, diversity, species richness, and evenness index of ground ants before cutting compared to after cutting. The results of this study indicated that the short-term impact of selective cutting on ground ants was varied. Selective cutting may increase or decrease the abundance and morphospecies composition of ground ants. The abundance of forager and ground-dwelling omnivores increased after selective cutting, whereas for the predator, scavenger, and seed disperser ants were decreased after selective cutting. Keywords: biodiversity, forest conservation, ground ant, selective cutting

Co-Authors A Sektiaji Sektiaji Adhiguna Indra nugraha Adita Agung Pradata Agus Rahmat Agustin, Sarah Ali Akbar Aziz Fajar Wahyudi Devi Muhtariana Elias Elias Elias Farikh Munir Mubarak Fitta Setiajiati Frama Haikal Hardjanto Heryana Ilham, Qori Pebrial Ilham, Qori Pebrian Indahwati Indahwati Laela Nurahma Lawrensia Limbong, Zest Limbong, Zest Lively Linda Audia Lively Limbong, Zest Lumbantobing, Sarah Nova Irene Maharani, Chandra Puspita Muhdin Muhdin Natalia Rahayaan, Yohana Natalia, Yohana Nazma Rahayu Nensi Yunita Irmawati Noor Farikhah Haneda Priyanto Priyanto Putri Komalasari Rahayaan, Yohana Natalia Rendy Heryandi Prabowo Reza Aulia Gifari Ria Dwi Afsari Ria Dwi Afsari Sarah Andini Sri Rahaju Winda Lismaya Yuniawati Yuniawati Yuniawati Yuniawati Yuniawati

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