http://repository.ipb.ac.id/handle/123456789/107 2026-07-02T07:35:27Z 2026-07-02T07:35:27Z Salsabila, Zahwa Azkiya http://repository.ipb.ac.id/handle/123456789/173917 2026-07-02T06:08:36Z 2026-01-01T00:00:00Z

Kemanfaatan Reduksi Emisi Karbon Program REDD+ di Provinsi Jambi Salsabila, Zahwa Azkiya Perubahan iklim global didorong oleh emisi gas rumah kaca dari deforestasi dan degradasi lahan di sektor AFOLU telah mendorong Indonesia mengimplementasikan program REDD+ dalam kerangka Nationally Determined Contribution (NDC) dan strategi FOLU Net Sink 2030. Penelitian ini bertujuan mengukur capaian reduksi karbon program BioCarbon Fund Initiative for Sustainable Forest Landscapes (BioCF-ISFL) di Provinsi Jambi, menghitung Nilai Reduksi Karbon (CRV), serta mengidentifikasi manfaat ekonomi tambahan, selama periode 2021 - 2025. Metode kuantitatif deskriptif menggunakan data sekunder dari dokumen ERPD BioCF-ISFL, data BPS Provinsi Jambi, dan literatur ilmiah. Hasil penelitian menunjukkan capaian reduksi emisi kumulatif sebesar 19,3 juta tCO2e, melampaui target 14 juta tCO2e. CRV program sebesar 1,5 USD/tCO2e lebih efisien daripada nilai insentif RBP sebesar 5 USD/tCO2e. Manfaat ekonomi non-karbon dari intervensi BioCF-ISFL meliputi penyerapan tenaga kerja senilai Rp149.430/tCO2e (8,6 USD/tCO2e) dan pendapatan hasil produksi AFOLU senilai Rp1,99 juta/tCO2e (115 USD/tCO2e), dengan total manfaat ekonomi sebesar 127,1 USD/tCO2e. Program juga mendorong transformasi kualitatif melalui konsolidasi produk bersertifikat ke pasar premium. Program BioCF-ISFL secara efektif mendukung pencapaian target NDC Indonesia melalui pendekatan yurisdiksi berbasis hasil, dengan dampak peningkatan kesejahteraan lokal dan mitigasi iklim.; Global climate change driven by greenhouse gas emissions from deforestation and land degradation in the AFOLU sector that has prompted Indonesia to implement the REDD+ program within the framework of its Nationally Determined Contribution (NDC) and the FOLU Net Sink 2030 strategy. This study measures the carbon reduction achievement of the BioCarbon Fund Initiative for Sustainable Forest Landscapes (BioCF-ISFL) program in Jambi Province, calculate the Carbon Reduction Value (CRV), and identify additional economic benefits, during the period of 2021 - 2025. The descriptive quantitative method uses secondary data from the BioCF-ISFL ERPD document, BPS Jambi, and related literature. The results show a cumulative carbon reduction achievement of 19.3 million tCO2e, exceeding the target of 14 million tCO2e. The carbon reduction value of 1.5 USD/tCO2e is more efficient than the RBP incentive value of 5 USD/tCO2e. The non-carbon economic benefits of the BioCF-ISFL intervention include employment absorption worth Rp149,430/tCO2e (8.6 USD/tCO2e) and income from AFOLU production worth of Rp1.99 million/tCO2e (115 USD/tCO2e), with a total economic benefit of 127.1 USD/tCO2e. The program also encouraged qualitative transformation through the consolidation of certification products into premium markets. The BioCF-ISFL project effectively supports the achievement of Indonesia’s NDC targets through a result-based jurisdictional approach, with impact on improving local welfare and climate mitigation.

2026-01-01T00:00:00Z Aditya, Elang Wisheilania http://repository.ipb.ac.id/handle/123456789/173904 2026-07-02T00:23:06Z 2026-01-01T00:00:00Z

Dampak Penebangan Terhadap Keterbukaan Kanopi dan Intensitas Cahaya di Hutan Rakyat Pola Tanam Agroforestri di Kabupaten Wonosobo Aditya, Elang Wisheilania Penebangan hutan rakyat dengan pola tanam agroforestri berpotensi meningkatkan keterbukaan kanopi yang berdampak pada perubahan struktur tegakan dan kondisi lingkungan di bawah tegakan. Penelitian ini bertujuan menganalisis dampak penebangan terhadap keterbukaan kanopi dan intensitas cahaya di hutan rakyat dengan pola tanam agroforestri. Penelitian dilakukan di 23 lahan hutan rakyat yang ditebang di Kabupaten Wonosobo, Jawa Tengah. Hutan rakyat contoh dipilih secara purposive sampling. Data yang dikumpulkan adalah diameter tajuk, intensitas cahaya dan foto udara. Pengukuran diameter tajuk pohon dilakukan secara terestrial menggunakan pendekatan bentuk elips. Pengukuran intensitas cahaya menggunakan PAR meter (Photosynthetically Active Radiation), dan pengambilan foto udara menggunakan drone untuk interpretasi profil kanopi dengan bantuan sistem informasi geografis (GIS). Hasil penelitian menunjukkan bahwa luas tajuk menurun dari 24.331,35 m² menjadi 18.294,84 m² dengan rata- rata keterbukaan kanopi sebesar 38,41%. Intensitas cahaya meningkat setelah penebangan, terutama pada tingkat pohon serta posisi tengah dan atas tanaman agroforestri, sedangkan pada posisi bawah tidak menunjukkan perubahan yang signifikan.; Logging activities in agroforestry based private forests have the potential to increase canopy openness, thereby affecting stand structure and the environmental conditions beneath the canopy. This study aimed to analyze the impact of logging on canopy openness and light intensity in agroforestry based private forests. The research was conducted in 23 logged private forest plots in Wonosobo Regency, Central Java, Indonesia. Sample plots were selected using purposive sampling. The data collected included canopy diameter, light intensity, and aerial photographs. Canopy diameter was measured terrestrially using an elliptical crown approach. Light intensity was measured using a Photosynthetically Active Radiation (PAR) meter, while aerial photographs were captured using an unmanned aerial vehicle (drone) to interpret canopy profiles with the support of a Geographic Information System (GIS). The results showed that the total canopy area decreased from 24,331.35 m² to 18,294.84 m², resulting in an average canopy openness of 38.41%. Light intensity increased after logging, particularly at the tree level and at the middle and upper positions of agroforestry plants, whereas no significant change was observed at the lower position. These findings indicate that logging substantially alters canopy structure and light availability within agroforestry based private forests.

2026-01-01T00:00:00Z Pauzi, Irpan http://repository.ipb.ac.id/handle/123456789/173872 2026-07-01T04:51:48Z 2026-01-01T00:00:00Z

Waktu Kerja, Produktivitas, dan Biaya Pengangkutan Kayu di Hutan Rakyat di Kabupaten Wonosobo Pauzi, Irpan Pengangkutan kayu merupakan salah satu tahapan penting dalam pemanenan hutan yang membutuhkan biaya operasional yang besar. Penelitian ini bertujuan menganalisis waktu kerja, produktivitas, dan biaya pengangkutan kayu di hutan rakyat. Sistem pengangkutan terdiri atas dua tahapan, yaitu pengangkutan kayu jarak dekat (langsir) menggunakan pick up dan pengangkutan jarak jauh (hauling) menggunakan truk. Unit contoh dalam penelitian ini adalah siklus kerja pengangkutan kayu. Jumlah total siklus yang diamati sebanyak 31 siklus, yang terdiri atas 26 siklus langsir dan 5 siklus hauling. Data waktu kerja diukur menggunakan metode null-stop. Produktivitas kerja dihitung berdasarkan produksi pengangkutan kayu per satuan waktu efektif, sedangkan biaya diperoleh melalui wawancara dan pencatatan biaya operasional kendaraan. Hasil penelitian menunjukkan bahwa waktu kerja rata-rata pengangkutan langsir sebesar 0,54 jam/siklus dengan produktivitas 4,80 m³/jam, sedangkan hauling sebesar 2,66 jam/siklus dengan produktivitas 2,64 m³/jam. Biaya total pengangkutan kayu sebesar Rp72.326/m³, yang terdiri atas biaya langsir kayu sebesar Rp35.362/m³ dan hauling Rp36.964/m³.; Timber transportation is an important stage in forest harvesting that requires considerable operational costs. This study analyzed the working time, productivity, and cost of timber transportation in private forests. The transportation system consisted of short-distance transportation (langsir) using pick up and long-distance transportation (hauling) using trucks. The unit of observation was the timber transportation work cycle. A total of 31 cycles were observed, comprising 26 langsir cycles and 5 hauling cycles. Working time was measured using the null-stop method. Productivity was calculated based on timber volume transported per effective working time, while costs were obtained through interviews and vehicle operational cost records. The results showed that the average working time for langsir was 0.54 hours/cycle with a productivity of 4.80 m³/hour, while hauling required 2.66 hours/cycle with a productivity of 2.64 m³/hour. The total transportation cost was Rp72,326/m³, consisting of Rp35,362/m³ for langsir and Rp36,964/m³ for hauling.

2026-01-01T00:00:00Z GAOL, ZIWEL NECLESIA LUMBAN http://repository.ipb.ac.id/handle/123456789/173854 2026-07-01T02:08:31Z 2026-01-01T00:00:00Z

Kepadatan Tanah Sebelum dan Sesudah Pemanenan Kayu Acacia mangium Willd. di RPH Maribaya, BKPH Parung Panjang GAOL, ZIWEL NECLESIA LUMBAN Kepadatan tanah merupakan indikator penting kualitas fisik tanah yang memengaruhi porositas, permeabilitas, dan pertumbuhan tanaman. Pada hutan produksi, aktivitas pemanenan kayu berpotensi meningkatkan kepadatan tanah akibat tekanan mekanis selama penebangan, penyaradan, dan pengumpulan kayu, yang berdampak pada penurunan laju infiltrasi dan peningkatan tahanan penetrasi. Penelitian ini bertujuan menganalisis perubahan kepadatan tanah sebelum dan sesudah pemanenan kayu Acacia mangium serta perbedaan tingkat kepadatan pada berbagai lokasi operasional di RPH Maribaya, BKPH Parung Panjang. Pengukuran dilakukan menggunakan ring infiltrometer dan digital cone penetrometer pada empat lokasi, yaitu jalan sarad, TPN, area pohon rebah, dan kontrol, dengan masing masing 10 titik pengamatan. Analisis data menggunakan uji paired t-test, ANOVA, dan Tukey HSD. Hasil menunjukkan peningkatan kepadatan tanah yang signifikan, ditandai penurunan laju infiltrasi dari 8,85 cm/jam menjadi 4,5 cm/jam dan peningkatan tahanan penetrasi dari 6,38 kg/cm² menjadi 7,67 kg/cm². Dampak terbesar terjadi pada jalan sarad dan TPN.; Soil density is an important indicator of soil physical quality that influences porosity, permeability, and plant growth. In production forests, timber harvesting activities have the potential to increase soil density due to mechanical pressure during felling, skidding, and timber collection, which results in reduced infiltration rates and increased penetration resistance. This study aims to analyze changes in soil density before and after the harvesting of Acacia mangium timber, as well as differences in density levels across various operational sites within the RPH Maribaya, BKPH Parung Panjang. Measurements were conducted using an infiltrometer ring and a digital cone penetrometer at four locations skidtrail, TPN, fallen tree areas, and a control site with 10 observation points at each location. Data analysis employed paired t-tests, ANOVA, and Tukey HSD. Results indicated a significant increase in soil density, marked by a decrease in infiltration rate from 8.85 cm/h to 4.5 cm/h and an increase in penetration resistance from 6.38 kg/cm² to 7.67 kg/cm². The greatest impact occurred on the skidtrail and TPN.

2026-01-01T00:00:00Z