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POLA TANAM DAN SISTEM SILVIKULTUR PADA SKEMA PERHUTANAN SOSIAL DI KULON PROGO, D.I. YOGYAKARTA Lestari, Puji; Utomo, Singgih; Prasetyo, Eko; Maulana, Ahdiar Fikri; Ngadianto, Agus; Qoyriah, Mufidatul; Lanangjati, Hafiz Satrio; Anggraeni, Cynthia
MAKILA Vol 18 No 1 (2024): Makila: Jurnal Penelitian Kehutanan
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/makila.v18i1.11536

Abstract

Social forestry is a scheme chosen by the government to improve community welfare by providing legal access to communities to manage forests. One of the social forestry schemes implemented in Kulon Progo is Community Forestry. This scheme has great potential to be developed with a multi-use forestry management model. Therefore, a review of the silvicultural aspect is needed to understand the forest management model currently implemented. This research aims to identify tree species, planting patterns and silvicultural systems implemented by Community Forestry at Production Forests in Kulon Progo. The research was conducted from August to October 2023 in Plot 17 and Plot 19 of RPH Kokap, BDH Kulon Progo-Bantul. Observations were made by making measurement plots of 20 m x 40 m of each plot and then recording the name of tree species, coordinates, height, diameter, height without branches, and canopy width. The data were then analyzed using Spatially Explicit Individual-based Forest Simulator (SexI-FS) software version 2.1.0. to see the projected planting pattern. The results of the research showed that tree species planted in the Community Forestry were teak (Tectona grandis), acacia (Acacia mangium), mahogany (Swietenia macrophylla), eucalyptus (Eucalyptus sp.), paperback (Melaleuca leucadendron), and jackfruit (Artocarpus heterophyllus ). These species were planted using a mixed planting pattern with the silviculture system of selective logging with artificial regeneration.
Karakteristik briket arang dari pelepah lontar (Borassus flabellifer Linn.) dengan variasi ukuran partikel dan tekanan kempa Rini, Dwi Sukma; Hardi, Lalu Amrian; Webliana, Kornelia; Aji, Irwan Mahakam Lesmono; Prasetyo, Mardyanto; Ngadianto, Agus
ULIN: Jurnal Hutan Tropis Vol 9, No 1 (2025)
Publisher : Fakultas Kehutanan Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32522/ujht.v9i1.14906

Abstract

Tanaman lontar (Borassus flabellifer Linn.) merupakan salah satu jenis palma yang memiliki banyak manfaat, dimana hampir semua bagian dari tanaman ini dapat dimanfaatkan, termasuk daun, batang, buah, dan bunga yang dapat disadap. Bentuk pelepah lontar mirip dengan pelepah kelapa, sehingga dapat digunakan sebagai sumber bahan bakar. Penelitian ini bertujuan untuk mengevaluasi karakteristik briket arang dari pelepah lontar dengan faktor ukuran partikel dan tekanan kempa, serta interaksi kedua faktor tersebut terhadap sifat-sifat briket arang. Metode penelitian yang digunakan adalah rancangan acak lengkap (RAL) faktorial dengan variasi ukuran partikel terbagi menjadi tiga level (-20 +40 mesh, -40 +60 mesh, -60 +80 mesh), dan tekanan kempa terdiri dari dua level (100 N/cm2 dan 150 N/cm2). Proses konversi biomassa pelepah lontar menjadi arang dilakukan menggunakan drum kiln. Pengujian dilakukan sesuai dengan standar SNI 01-6235-2000, termasuk pengukuran kadar air, kadar abu, zat mudah menguap, dan nilai kalor. Hasil rata-rata pengujian menunjukkan nilai masing-masing parameter adalah 9,22% untuk kadar air, 10,57% untuk kadar abu, 38,33% untuk zat mudah menguap, dan 6278,72 kal/gr untuk nilai kalor. Analisis keragaman menunjukkan bahwa ukuran partikel berpengaruh terhadap kadar abu dan zat mudah menguap, sedangkan tekanan kempa dan interaksi antara kedua faktor tersebut mempengaruhi kadar zat mudah menguap.
Kinerja Sistem Agroforestri pada Areal Ijin Perhutanan Sosial: Studi Kasus Kelompok Tani Hutan Argo Makmur Lestari, Tulungagung Utomo, Singgih; Purwanto, Agus Budi; Prasetyo, Eko; Maulana, Ahdiar Fikri; Arifriana, Ridla; Lestari, Puji; Ngadianto, Agus
MAKILA Vol 19 No 2 (2025): Makila : Jurnal Penelitian Kehutanan
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/makila.v19i2.22720

Abstract

The objective of this study is to provide a comprehensive description of the performance of agroforestry systems in the Community Forest (HKm) scheme, as implemented by the Argo Makmur Lestari Forest Farmers Group in Tulungagung, East Java. A qualitative descriptive approach was utilised to facilitate the collection of data through field observations and in-depth interviews with farmers and group administrators. The results indicate that the agroforestry system in KTH AML has been adopted by some farmers, with motivations including income diversification, labor efficiency, strengthening social relations, and increasing soil fertility. The present study has demonstrated that the implementation of agroforestry systems has a beneficial effect on the environment, as evidenced by the increase in plant biodiversity (12 species) in comparison to monoculture systems (1 species). Additionally, the pH level of soil in agroforestry systems (5.5–6.5) exceeds that of soils cultivated under monoculture systems (4.5–5.5). This finding suggests that the agroforestry system has the potential to enhance soil fertility. Nevertheless, the advancement of agroforestry adoption remains encumbered by challenges, namely the reliance on established corn commodity infrastructure and the inadequate access to agroforestry commodity markets. It is imperative that the internal strength of the KTH AML institution is reinforced, in conjunction with the external assistance programs, in order to expedite the transition from monoculture systems to agroforestry systems. These findings carry significant implications for the development of contextual and responsive agroforestry models.
Evaluasi Sebaran Longitudinal Sifat Fisika Dan Mekanika Dendrocalamus Asper Dan Gigantochoa Apus Menggunakan Mixed-Effect Modeling Dwi Sukma Rini; Ichsan, Andi Chairil; Anwar, Hairil; Ningsih, Rima Vera; Khiarunnisa, Aulia; Ngadianto, Agus
Jurnal Penelitian Hasil Hutan Vol. 43 No. 2 (2025): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jphh.2025.11302

Abstract

Bamboo is an environmentally friendly construction material because it is renewable, lightweight, and possesses good mechanical strength. However, due to the lack of basic knowledge about the properties of bamboo culms, only a few species are commonly utililized. This study aims to investigate the longitudinal variation of physical and mechanical properties of Dendrocalamus asper and Gigantochloa apus that grow naturally on Lombok Island. Sampling was carried out by selecting 10 bamboo culms, aged 3-4 years old, from different clumps at each location. The tests conducted include moisture content, basic density, tangential and radial shrinkage, modulus of elasticity (MOE), and modulus of rupture (MOR). Statistical analysis was performed using R software, incorporating linear and non-linear mixed-effects models to evaluate longitudinal variations and the influence of individual and location on the distribution of bamboo properties. The results showed that the values for green moisture content, basic density, tangential and radial shrinkage at 1% moisture content change, MOE, and MOR for G. apus were 99.97%, 0.60 g/cm³, 0.29%, 0.35%, 8.27 GPa, and 108.80 MPa, respectively. Meanwhile, the values for D. apser were 108.13%, 0.58 g/cm³, 0.34%, 0.42%, 9.71 GPa, and 102.47 MPa, respectively. The longitudinal variation of moisture content in G. apus followed a linear pattern, while a logarithmic equation best described the variation in moisture content of D. asper, basic density, MOE, and MOR for both bamboo species. Additionally, the longitudinal variation in tangential and radial shrinkage for both species remained constant, following a linear equation with a y-intercept.