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KUALITAS ASAP CAIR BATANG GELAM (Melaleuca sp.) Alpian, Alpian; Prayitno, Tiberius Agus; Gentur Sutapa, Johanes Pramana; Budiadi, Budiadi
Jurnal Penelitian Hasil Hutan Vol 32, No 2 (2014): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Litbang Keteknikan Kehutanan dan Pengolahan Hasil Hutan

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Gelam (Melaleuca sp.) adalah spesies rawa pasang surut yang banyak tumbuh di hutan rawa Kalimantan Selatan dan Kalimantan Tengah. Gelam adalah salah satu spesies yang potensial sebagai kayu penghasil asap cair dengan teknologi yang tersedia dan mudah diimplementasikan. Tulisan ini mempelajari kemungkinan pemanfaatan kayu gelam untuk asap cair. Asap cair ini diperoleh dari proses pirolisis kayu pada suhu 500ÃÂ°C selama 3 jam. Asap cair adalah berwarna kuning kemerahan, transparan dan tidak ada bahan terapung. Berat jenis asap cair adalah 1,008-1,058 dengan pH 3,105-3,195 dan kadar keasaman bervariasi dari 5,167-12,903%. Kadar karbonil dan fenol masing-masing adalah 11,250-28,307% dan 2,429-9,231%. Secara umum, kayu gelam menghasilkan asap cair dan kualitasnya memenuhi persyaratan standar Jepang.

Kualitas Arang Aktif Kayu Gelam dan Aplikasinya untuk Meningkatkan Kualitas Air (Activated Charcoal Quality of Gelam Wood and Its Application to Improve Water Quality) Alpian, Alpian; Prayitno, TA; Sutapa, JP Gentur; Budiadi, Budiadi
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 8, No 2 (2010): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Jurnal Ilmu dan Teknologi Kayu Tropis

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Gelam (Melaleuca cajuputi) is the dominant tree species grown in swamp forests, especially in tidal areas in Central Kalimantan. Gelam wood has been used for construction and biomass energy, which is due to high density of wood. Previously studies reported that the quality of charcoal from wood stems of Gelam was better than that from roots, fruits, flowers, branches and leaves. The study was to investigate the characteristics of activated charcoal from wood stem of gelam which taken from different site and growth stages of the tree, and its utilizations for water quality improvement. The parameters observed were yield, moisture content, volatile matter content, ash content, fixed carbon, absorption of benzene, iodine and methylene blue. The Gelam wood from different growth site and stage of trees (saplings, poles, trees) can be used as raw material for activated charcoal production. The quality of activated charcoal fulfilled the quality requirements of technical activated charcoal (SNI 06-3730-1995), activated charcoal for the purification of edible oil (SNI 06-4262-1996) and drinking water (SNI 06-4253-1996), except for absorption of benzene. Generally, the quality of water treated by activated charcoal increased and fulfilled the requirements of clean water standards (Departemen Kesehatan 1990).

Groundwater Occurrence Prediction using Regressions on Morphometric Variables in Upstream Progo Watershed, Yogyakarta Listyani, T.; Budiadi, Budiadi
Indonesian Journal on Geoscience Vol 5, No 3 (2018)
Publisher : Geological Agency

DOI: 10.17014/ijog.5.3.265-276Geomorphological mapping has been done at the upstream part of Progo Drainage Area by measuring some geomorphological indexes and level of shallow groundwater level at 196 stations, to investigate connections between geomorphological characteristics and groundwater system in the area. These indexes are valley floor - height ratio (Vf), valley cross section (Vratio o rVr), stream gradient index (SL), and drainage density (Dd). Based on the linear regression analysis, the four indexes show none to very weak correlation to water table at most locations. It means that all width, height, and width of the river valley do not control shallow groundwater level. However, some locations indicate a strong control of elevation to shallow groundwater level. The first case indicates that there is another controlling factor to the shallow groundwater system. Most likely, a deeper aquifer exists at those locations, which does not show up in the second case. All results give a preliminary indication that morphometry can be used to predict groundwater system in the area.

Groundwater Occurrence Prediction using Regressions on Morphometric Variables in Upstream Progo Watershed, Yogyakarta Listyani, T.; Budiadi, Budiadi
Indonesian Journal on Geoscience Vol 5, No 3 (2018)
Publisher : Geological Agency

DOI: 10.17014/ijog.5.3.265-276Geomorphological mapping has been done at the upstream part of Progo Drainage Area by measuring some geomorphological indexes and level of shallow groundwater level at 196 stations, to investigate connections between geomorphological characteristics and groundwater system in the area. These indexes are valley floor - height ratio (Vf), valley cross section (Vratio o rVr), stream gradient index (SL), and drainage density (Dd). Based on the linear regression analysis, the four indexes show none to very weak correlation to water table at most locations. It means that all width, height, and width of the river valley do not control shallow groundwater level. However, some locations indicate a strong control of elevation to shallow groundwater level. The first case indicates that there is another controlling factor to the shallow groundwater system. Most likely, a deeper aquifer exists at those locations, which does not show up in the second case. All results give a preliminary indication that morphometry can be used to predict groundwater system in the area.

Groundwater Occurrence Prediction using Regressions on Morphometric Variables in Upstream Progo Watershed, Yogyakarta Listyani, T.; Budiadi, Budiadi
Indonesian Journal on Geoscience Vol 5, No 3 (2018)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.5.3.265-276

DOI: 10.17014/ijog.5.3.265-276Geomorphological mapping has been done at the upstream part of Progo Drainage Area by measuring some geomorphological indexes and level of shallow groundwater level at 196 stations, to investigate connections between geomorphological characteristics and groundwater system in the area. These indexes are valley floor - height ratio (Vf), valley cross section (Vratio o rVr), stream gradient index (SL), and drainage density (Dd). Based on the linear regression analysis, the four indexes show none to very weak correlation to water table at most locations. It means that all width, height, and width of the river valley do not control shallow groundwater level. However, some locations indicate a strong control of elevation to shallow groundwater level. The first case indicates that there is another controlling factor to the shallow groundwater system. Most likely, a deeper aquifer exists at those locations, which does not show up in the second case. All results give a preliminary indication that morphometry can be used to predict groundwater system in the area.

The Effect of Fusarium Fungal Inoculation, Hole Position, and Induction Technique on Forming Agarwood in Gyrinops versteegii Tree Rawana, Rawana; Hardiwinoto, Suryo; Budiadi, Budiadi; Rahayu, Sri; Prijono, Agus
Jurnal Manajemen Hutan Tropika Vol. 30 No. 3 (2024)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.7226/jtfm.30.3.314

Gyrinops versteegii, belonging to the Themelaeaceae family, is one of the species producing high-grade agarwood. The induction technique can accelerate the agarwood product. This study inducted the G.versteegii tree with fungal species, a variation of hole position, and an induction technique. The research was done at a domesticated G. versteegii plantation in Sragen and Karanganyar District, Central Java Province. The agarwood quality resulted from the inoculated G.versteegii tree characterized by the wood aroma, the discolouration area, wood aroma, and terpenoid content, is significantly affected by the wood position in the stem, the fungal species, and the inoculation technique. The upper stem results the better agarwood than the bottom stem. Using the inoculant of the Fusarium oxysporum can achieve better agarwood than the inoculant of F.solani and mixed F.solani x F.oxysporum. Furthermore, the infusion technique gains a better agarwood result than others. Keywords: domesticated G.versteegii, wood aroma, discolouration, and terpenoids.

Pola Silvopastura Pada Hutan Pinus Perhutani Kph Kedu Selatan (Studi Kasus: Kecamatan Kaligesing, Purworejo) Jihad, Aqmal Nur; Aryani, Zaini Silvia; Riyadi, Bagus; Budiadi, Budiadi; Hardiwinoto, Suryo; Pahlevi, Muhammad Reza
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.v9i1.13130

Silvopastura merupakan bagian dari ragam implementasi agroforestry yang menggabungkan antara pohon dengan ternak atau hijauan pakan ternak. Kecamatan Kaligesing, Kabupaten Purworejo merupakan wilayah dengan program tahunan kontes kambing Peranakan Etawa (PE) dimana sumber pakan utama adalah Calliandra calothyrsus (kaliandra). Implementasi silvopastura dilakukan di lahan Perhutani dengan penanaman kaliandra dibawah tegakan Pinus merkusii (Pinus). Agroforestri sebagai praktek lama, ilmu baru menimbulkan konsekuensi adanya gap penelitian yang masih lebar. Terlebih lagi pada kasus agroforestri pinus dan kaliandra sebagai pakan ternak yang masih sangat terbatas. Penelitian ini bertujuan mendokumentasi implementasi pola silvopastura berbasis pinus dan eksplorasi aktivitas silvopastura yang diharapkan menjadi pondasi dalam rencana pengembangan silvopastura. Hasil penelitian yang diperoleh yakni (1) pola agroforestri yang terbentuk adalah alternate rows dan alley cropping; (2) aktivitas masyarakat berkaitan dengan silvopastura masih dominan terbatas pada penanaman dan pemanenan. Silvopastura di Kecamatan Kaligesing, Kabupaten Purworejo dapat dikategorikan sebagai praktek tradisional silvopastura. Penelitian ini dapat menjadi baseline dalam penyusunan rencana pengembangan dan penelitian lanjutan di masa mendatang.

Penerapan Pola Agroforestri Berbasis Kelapa dan Pendapatan Petani di Desa Samuda, Kabupaten Halmahera Utara Lewerissa, Ebedly; Budiadi, Budiadi; Hardiwinoto, Suryo; Subejo, Subejo
MAKILA Vol 14 No 1 (2020): Makila : Jurnal Penelitian Kehutanan
Publisher : Universitas Pattimura

This study aims to determine the application of agroforestry patterns and their contribution to the income of farmers in the village of Samuda, North Halmahera Regency. The research method used was a purposive sampling method, with 30 respondent farmers who had coconut-based agroforestry land. Data collection and analysis are done descriptively and quantitatively. The results showed that two patterns of agroforestry application, the Agrisilvikultur Tress Along with Borders pattern and the Agrisilvikultur Random Mixture pattern, we're able to make many ecological and economic contributions. From the ecological point of view, mixed agroforestry patterns can increase resistance to plant diseases, and economically, agroforestry patterns can increase farmers' average income. Completion of coconut-based agroforestry in the form of copra increased the average annual income of IDR 35,633,333.3/year and the average income from secondary crops by IDR. 1,249,637,500/year. While the average income from non-agroforestry products is IDR 34,550,000/year. Comparison of income and expenditure shows that the average income of farmers is greater than the expenditure, so the application of agroforestry patterns has a significant influence on the level of welfare of farmers in the study area.

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