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All Journal Jurnal Ilmu Kehutanan
Greitta Kusuma Dewi
Faculty of Forestry, Universitas Gadjah Mada
Agriculture, Biological Sciences & Forestry

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Analisis Usahatani Intensifikasi Agrosilvopastura Di Kalurahan Wiladeg, Kapanewon Karangmojo, Kabupaten Gunungkidul, Provinsi Daerah Istimewa Yogyakarta Muhammad Abdul Rahman Subrata; Slamet Riyanto; Wahyu Andayani; San Afri Awang; Greitta Kusuma Dewi
Jurnal Ilmu Kehutanan Vol 16 No 2 (2022): September
Publisher : Faculty of Forestry Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3550.808 KB) | DOI: 10.22146/jik.v16i2.1865

Abstract

This research aimed to analyze the increase in income from intensified agrosilvopastoral in Wiladeg Village, Karangmojo Sub-district, Gunungkidul Regency, Yogyakarta, Indonesia. This research employed Participatory Action Research (PAR) to collect data through four cycles of food crop production trials under forest stands. The on-farm trials used the submersible-well technology and lasted for three years. The Average Equivalent Value (AEV) analysis grouped the respondents into two strata based on land ownership. Stratum-1 consisted of respondents with an agrosilvopastoral area of ≤ 4000 m2, while stratum-2 of > 4000 m2. The off-farm intensification trials involved three cow fattening cycles and used Net Present Value (NPV) analysis. The results showed that on-farm trials contributed an increase in AEV, namely 692% on land strata-1 and 462% on land strata-2. The off-farm trials provided an NPV of IDR 14,679,000,00/year in the off-farm sector of cow fattening. Based on these results, intensified agrosilvopastoral was feasible to increase land productivity both on-farm and off-farm in Wiladeg Village.
Efek Jenis dan Komposisi Lamina Kayu terhadap Sifat Balok Laminasi Silang dari Kayu Hutan Rakyat Greitta Kusuma Dewi; Tibertius Agus Prayitno; Ragil Widyorini
Jurnal Ilmu Kehutanan Vol 18 No 1 (2024): March
Publisher : Faculty of Forestry Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jik.v18i1.6042

Abstract

Community forests offer diverse wood species and quantities, potentially meeting the increasing demand for wood-building materials driven by the green building concept. The diverse species have varied specific gravity. Combining wood species and cross-lamination engineering could improve the strength and dimensional stability of low-density and medium-density wood from community forests. Therefore, this research aimed to determine the effect of wood species and laminae composition on the properties of 5-ply cross-laminated beams (CLB). The 5-ply CLB was made in 5 cm x 5 cm x 112 cm with 1 cm laminae thickness. The species used were sengon, jabon, and mahogany, with acacia as enforcement. This research also compared homogeneous and heterogeneous laminae composition. The results showed that wood species and laminae composition significantly affect the mechanical properties. Heterogeneous compositions had higher mechanical properties than homogeneous compositions. The delamination test revealed that the CLB had high water resistance on cold and hot immersion even though the beams used up to three wood species.
Sixty Years of UGM Forestry Faculty’s Work in Preserving Indonesia’s Forests and Environment Sigit Sunarta; Kaharuddin Kaharuddin; Dwiko Budi Permadi; Widiyatno Widiyatno; Ragil Widyorini; Greitta Kusuma Dewi; Ari Susanti; Ni Putu Diana Mahayani
Jurnal Ilmu Kehutanan Vol 18 No 1 (2024): March
Publisher : Faculty of Forestry Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jik.v18i1.12543

Abstract

Given a mandate to preserve the Indonesia tropical forest through its education, research, and community service activities, the Faculty of Forestry Universitas Gadjah Mada (FoF UGM) has reached broad stakeholders to support sustainable forest management and climate mitigation (SDG 13 and 17). FoF UGM supports basic and applied research contributing to forestry industrialization (SDG 9), such as improved planting materials for Tectona grandis and Eucalyptus sp. In collaboration with the community (SDG 1 and 2), FoF UGM also diversifies kajuput essential oil produced in Wanagama and UGM teaching forests. Technology innovations such as glue and cross-laminated timber, biodiesel, information systems, and drone technologies for land rehabilitation and carbon accounting represent the institution's commitment to improving Indonesia's forest, forestry, community, and national economy (SDG 13 and 15).
Co-Authors Ari Susanti Dwiko Budi Permadi Kaharuddin Kaharuddin Muhammad Abdul Rahman Subrata Ni Putu Diana Mahayani Ragil Widyorini San Afri Awang Sigit Sunarta Slamet Riyanto Tibertius Agus Prayitno Wahyu Andayani Widiyatno Widiyatno