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All Journal Agromet Indonesian Journal of Forestry Research Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat
Rahaju, Sri
Department Of Forest Management, Faculty Of Forestry And Environment, IPB University
Agriculture, Biological Sciences & Forestry

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KAJIAN PEROLEHAN KARBON SEBAGAI DAMPAK INTERVENSI KASUS: EKS-PLG BLOK A, MENTANGAI, KALIMANTAN TENGAH(CARBON RESULT STUDY AS INTERVENTION IMPACT, CASE: EKS-PLG BLOCK A, MENTANGAI, CENTRAL BORNEO) Sri Rahaju; . Istomo
Agromet Vol. 22 No. 1 (2008): June 2008
Publisher : PERHIMPI (Indonesian Association of Agricultural Meteorology)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (212.924 KB) | DOI: 10.29244/j.agromet.22.1.%p

Abstract

CCFPI is project activity on “Climate Change, Forests and Peatlands in Indonesia” funded by the “Canadian International Development Agency” (CIDA) through Climate Change and Development Fund, Canada. This project is designed to increase sustainable management of forests and peatlands in Indonesia in order to increase the capacity in carbon sequestration and also better of community incomes. One of project location in Kalimantan is area Ex-PLG Blok A, Mentangai, Central Kalimantan. This article present study on total value carbon gained as impact from various interventions in location of CCFPI project activity in area Ex-PLG Blok A, Mentangai. Method of estimation on carbon stock is conducted by Sample Plot of Measurement (PCP). Calculation of carbon stock with equation of alometrik which is present in Field Guidance to Estimate Carbon Stock on Peatland (Murdiyarso et.al., 2004). Activity of cannal blocking by CCFPI project has result to the positive impacts to the reduction rate of carbon both for above and below ground carbon as well as carbon content by tree plantation established by the community inside the areas of around 43,451 ha. Based on result of calculation, the amount of above ground carbon stock obtained 14,448 ton C. Carbon stock found in the trees plantation in surrounding the cannal 0.777 ton C. Below ground carbon stock is ranged between 550,782 ton C up to 2,223,424 ton C.
FORM FACTORS AND VOLUME MODELS FOR ESTIMATING TREE BOLE VOLUME OF MAHOGANY AT COMMUNITY FORESTS IN CENTRAL JAVA Tatang Tiryana; Lailatul Khasanah; Priyanto Priyanto; Sri Rahaju; Muhdin Muhdin
Indonesian Journal of Forestry Research Vol 8, No 2 (2021): Indonesian Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2021.8.2.199-211

Abstract

Form factors and volume models are often be used in the estimation of tree volumes. However, a few studies have developed and evaluated the accuracy of form factors and volume models for estimating tree volumes of community forests. This study aimed to formulate form factors and volume models and assess their prediction accuracy for estimating tree bole volumes of mahogany at community forests in Central Java. This study used 120 sample trees with diameters of 6–38 cm to formulate artificial and absolute form factors and to develop tree bole volume models. These form factors coupled with bole height and total height were used in simple volume equations. Regression analyses were used to develop volume models using the diameter and total height as predictors. The simple volume equations and volume models' prediction accuracy was evaluated using a cross-validation dataset and independent dataset (30 sample trees). The artificial form factor (0.68 ± 0.11) of mahogany, which was higher than the absolute form factor (0.46 ± 0.09), provided accurate estimates of tree bole volumes when it was used with the bole height instead of the total height. The volume model that uses diameter and total height produced the most accurate estimates, while the volume model that uses diameter alone provided the most practical yet reliable tool for estimating tree bole volumes of mahogany. The results of this study are useful for improving community forest management.
Pelatihan Teknik Inventarisasi Hutan untuk Mewujudkan Kemandirian Pengelolaan Hutan Rakyat di Bogor Qori Pebrial Ilham; Muhdin Muhdin; Priyanto Priyanto; Sri Rahaju; Nining Puspaningsih
Agrokreatif: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 12 No. 2 (2026): Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrokreatif.12.2.287-294

Abstract

Private forest farmers in Karyasari Village typically sell standing trees using a "borongan" system without knowing the actual stand volume, while buyers rely on visual estimation methods. This situation is attributed to the lack of a standardized reference for estimating timber volume in private forests. This community service program aimed to transform the farmers' paradigm regarding timber selling systems towards measurable volume-based estimation through technical training on forest inventory. The program involved 30 members of the Kelompok Wanita Tani Sipon Harum Lestari and Kelompok Tani Harapan Maju in Karyasari Village, Bogor Regency. The training employed an andragogical approach, encompassing material dissemination, demonstrations of simple measurement tools, field practice, and training evaluation. The effectiveness of the training was assessed using a one-group pre-test and post-test design. Paired t-test analysis revealed a significant increase in knowledge regarding tree dimension measurement (p=0.0001) and volume estimation (p=0.0037). These findings indicate that the training on forest inventory techniques successfully enhanced the farmers' capacity to measure tree dimensions and estimate timber volume. This knowledge is highly valuable as a benchmark for establishing an independent and sustainable private forest timber selling system. 
Peningkatan Pengetahuan Kelompok Tani melalui Pelatihan Budi Daya Porang di Desa Sugihwaras, Magetan, Jawa Timur Adisti Permatasari Putri Hartoyo; Istomo Istomo; Sri Rahaju
Agrokreatif: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 9 No. 1 (2023): Agrokreatif Jurnal Ilmiah Pengabdian Kepada Masyarakat
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrokreatif.9.1.1-9

Abstract

The Subur farmer group is located in Sugihwaras Village, Maospati District, Magetan Regency, East Java which develops sugarcane (Saccharum officinarum) and teak (Tectona grandis) with a monoculture pattern. Monoculture cultivations produce a single income for farmers, hence other adaptive intolerant commodities and sites that generate alternative income are needed. One of them is Porang (Amorphophallus muelleri Blume). The farmer group’s knowledge and skills related to porang cultivation are very limited. The aims of this activity were: 1) To train farmer groups related to porang cultivation planted with agroforestry patterns; 2) To analyze knowledge changes of farmer groups regarding porang cultivation; and 3) To evaluate the implementation of the training program. The results showed that training on porang cultivation and making agroforestry demonstration plots were able to increase the knowledge of the Subur farmer group. The pre-test score was 65,1 (55%) while the post-test was 88,6 (75%). Based on the evaluation of the assessment of training activities by farmers, as many as 74,3% of farmers stated that they strongly agreed that the porang cultivation training was very useful and suitable for their needs. In addition, the activity feasibility analysis showed that this training is categorized as very feasible to be implemented with a score of 94%. Porang cultivation training for the Subur farmer group was able to increase knowledge and the potential to earn additional income for the people of Sugihwaras Village, Magetan Regency, East Java.
Inovasi Teknik Penebangan terhadap Perubahan Pengetahuan dan Sikap dalam Praktik Pengelolaan Hutan Rakyat di Desa Karyasari, Kecamatan Leuwiliang Hardjanto Hardjanto; Qori Pebrial Ilham; Sri Rahaju; Ahmad Budiaman; Fitta Setiajiati; Priyanto Priyanto
Agrokreatif: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 11 No. 2 (2025): Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrokreatif.11.2.230-238

Abstract

Private forests cultivated using agroforestry systems have the potential to produce timber, non-timber forest products, and a variety of agricultural crops. However, such forests are still being managed in a traditional manner, both in terms of cultivation techniques and management. The Service activities of the Dosen Pulang Kampung Program specifically aimed to introduce an innovative tree felling technique called the sandat technique, which minimizes the risk of damage to understory vegetation. The method used in this program is service learning, which integrates academic learning with community service through training sessions (both theoretical and practical). The results show that community forest farmers and loggers have understood this technique, recognizing it as a newly introduced method that they find highly beneficial and are eager to adopt in their forest-management practices. Consequently, they expressed their intention to adopt it for managing community forests. This innovation has started to demonstrate increased knowledge, a shift in attitudes (towards adoption), and satisfaction with the program itself. The Sandat Technique is thus critical to becoming a policy in community forest management and should be disseminated by the forestry office/branch to community forest farmers for adoption in the future.
Co-Authors Adisti Permatasari Putri Hartoyo Ahmad Budiaman Fitta Setiajiati Hardjanto Hardjanto Istomo . Lailatul Khasanah Muhdin Muhdin Muhdin Muhdin Nining Puspaningsih Priyanto Priyanto Priyanto Qori Pebrial Ilham Tatang Tiryana