cover
Contact Name
Ni Putu Diana Mahayani
Contact Email
diana.mahayani@ugm.ac.id
Phone
+62274-512102
Journal Mail Official
jik@ugm.ac.id
Editorial Address
Fakultas Kehutanan Universitas Gadjah Mada Jl. Agro No 1, Bulaksumur, Sleman, Yogyakarta 55281
Location
Kab. sleman,
Daerah istimewa yogyakarta
INDONESIA
Jurnal Ilmu Kehutanan
ISSN : 01264451     EISSN : 2477375     DOI : https://doi.org/10.22146
Core Subject : Agriculture,
Jurnal Ilmu Kehutanan is a biannual open access journal by the Faculty of Forestry, Universitas Gadjah Mada, Indonesia, that publishes peer-reviewed scientific articles focusing on aspects of forest management, silviculture, forest conservation, and forest technology, both basic and applied. The Journal intended as a medium for communicating and motivating research activities through scientific papers, including research papers, short communications, and reviews written in English. In considering suitability for publication, the Journal refers international editorial conventions and conducts a double-blind peer-review selection process.
Articles 61 Documents
Evaluasi Aktivitas Antijamur dan Antioksidan dari Ekstrak Etil Asetat Kulit Kayu Pinus merkusii Masendra Masendra; Brandon Aristo Verick Purba; Ganis Lukmandaru
Jurnal Ilmu Kehutanan Vol 15 No 1 (2021): Maret
Publisher : Fakultas Kehutanan Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3144.701 KB) | DOI: 10.22146/jik.v15i1.1494

Abstract

Pinus merkusii is the only species in the Pinaceae family to grow in Southeast Asia, including Indonesia, and serves as a source of wood and oleoresins. During the utilization of this pine, the bark is discarded as residue, however, this residue is possibly a potential source of antifungal and antioxidant agents, due to the polyphenol contents. This study, therefore, aims to investigate the antifungal and antioxidant compounds present in the bark of P. merkusii. The ethyl acetate extracts of Pinus merkusii were fractionated to obtain five fractions (Fr. A- Fr. E) and the bioactivity of each fraction was observed. Subsequently, the growth inhibition against Phanerochaete chrysosporium, was evaluated for antifungal activity, while DPPH (1,1-diphenyl-2-picrylhydrazyl) method was used to ascertain antioxidant activity. According to the GC-MS analysis, the ethyl acetate fractions contain triterpenoids and steroids as the dominant compounds as well as minor amounts of mono-sesquiterpenoids and hydrocarbons. The highest growth inhibition exhibited by Fr. C- Fr. E (>60%) indicates triterpenoids and steroids act as a fungal inhibitors. Meanwhile, the five fractions exhibited low antioxidant activity because the steroids and triterpenoids present are possibly ineffective DPPH inhibitors. Also, the antifungal and antioxidant activity R2 values were discovered to correlate 0.3, indicating a low positive correlation.
Perbandingan Finansial Usaha Budidaya Bambu dan Sengon Haris Prasetyo; Dodik Ridho Nurrochmat; Leti Sundawati
Jurnal Ilmu Kehutanan Vol 15 No 1 (2021): Maret
Publisher : Fakultas Kehutanan Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1160.186 KB) | DOI: 10.22146/jik.v15i1.1502

Abstract

Bamboo is proven to provide multi-benefits from the aspects of production, ecology and socio-economic. However, bamboo is still not fully developed. People tend to replace bamboo with wood species which are considered to be more profitable, one of them is sengon. The purpose of this study was to analyze bamboo management practices carried out by farmers and compare between sengon and bamboo cultivation which is more financially profitable. Financial analysis conducted includes: Net Present Value (NPV), Benefit Cost Ratio (BCR) and Internal Rate of Return (IRR). Analysis of market aspect and social aspect using the Market Analysis and Development (MA&D) method. The sensitivity analysis is carried out on the condition of fixed income while costs increase by 10% and 30% and fixed costs while income rises by 10% and 30%. The analysis included the analysis of market aspect and social aspect. The results of the financial analysis showed that the cultivation of petung bamboo with a spacing of 6x6 meters gave the highest yield with NPV value of IDR330.329.538, BCR 29.10 and IRR of 25.18%. Nevertheless; looking at market and social aspects, bamboo and sengon can be developed in agroforestry to ensure sustainability and continuity of income for farmers. Bamboo and sengon cultivation business is feasible to be conducted because the high demand which cannot be met from the existing sources.
Ketahanan Gubal Jati Hutan Rakyat Diawetkan dengan Senyawa Boron Menggunakan Metode Tekan Lowry terhadap Serangan Rayap Tanah dan Kayu Kering Yus Andhini Bhekti Pertiwi; Joko Sulistyo
Jurnal Ilmu Kehutanan Vol 15 No 1 (2021): Maret
Publisher : Fakultas Kehutanan Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (785.07 KB) | DOI: 10.22146/jik.v15i1.1509

Abstract

Nowadays, most of teak wood that available on the market was mainly from comunity forest. Those teak woods were commonly harvested in the early age. The young teak wood from community forests possesses lower proportion of heartwood than sapwood. Those condition was generally had an affect on the wood durability. Although the wood durability was estimated to be low, but the teak wood from community forest was intensively used for furniture and house construction. Therefore, study on the sapwood durability of young teak wood from community forest is necessary. In the present study, the durability of sapwood treated by boron compound (boric acid and borax) as wood preservatives was investigated. The boron concentrations were 5, 7 and 10%. The vacuum process were used to impreg the preservative into the wood specimens called as Lowry method. The efectivity of preservation method were investigated, namely absorption, retention, penetration, efficacy of subterranean and dry-wood termites. The absorption, retention, and penetration of boron compound were 69.10–96.41 kg/m3, 4.53–5.31 kg/m3, and 3.04–3.16 mm, respectively. Absorption, retention, and penetration of preservatives showed an increasing value by increasing the preservatives concentrations, with the highest values were obtained for 10% boron concentration. Graveyard test was used to evaluate the efficacy of boron in teak sapwood to subterranean termites. During 2 months observation, mass loss and degree of wood damage were 0.42-1.37% and 6.31-18.72%. Furthermore, the efficacy of boron was also conducted for dry-wood termites. The mass loss, degree of wood damage, and dry-wood termites mortality after 28 days observation were 1.46-1.67%, 29.45-32.38%, and 87.33-95.33%, respectively. The durability of boron treatened teak sapwood against subterranean and dry-wood termites was increased. The increasing of teak sapwood durability was characterized by reduction of mass loss and degree of wood damage compared to untreated teak sapwood (control).
Tingkat Erosi pada Plot Model Arsitektur Pohon Attims (Eucalyptus deglupta), Corner (Arenga pinnata), dan Rauh (Arthocarpus teysmanii) Naharuddin Naharuddin
Jurnal Ilmu Kehutanan Vol 15 No 1 (2021): Maret
Publisher : Fakultas Kehutanan Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6361.576 KB) | DOI: 10.22146/jik.v15i1.1510

Abstract

Tree architecture models and the composition of vegetation types affected surface runoff and erosion rates due to vegetation density and various other morphological and ecological characteristic components. This research purpose was to measure and compare the level of erosion in 3 tree architectural models. The research used the path plots method. The sample pathway was made by cut off contour lines. To measure the erosion rate that occured at the tree architecture model, erosion measuring plots were used in three tree architecture models, namely Attims (Eucalyptus deglupta), Corner (Arenga pinnata), and Rauh (Arthocarpus teysmanii). The results showed that the dominant tree architecture model was the Rauh, Attims, and Corner models. The erosion level which occurred in the three tree architectural models showed that the Attims Eucalyptus deglupta model and Corner Arenga pinnata models were more effective in controlling erosion by 233.55 g/ha/year and 293.10 g/ha/year with rainfall of 493.55 mm compared to Rauh Arthocarpus teysmanii type. The correlation analysis between rainfall and the erosion rate at the three tree architecture models were 80% (very strong) for Attims model, 89% (very strong) for Corner model and 90% (very strong) for Rauh model. To control the erosion the Attims and Corner models are highly recommended as alternatives for rehabilitating the critical land.
Kelarutan Lignin Kayu Cepat Tumbuh dalam Ekstraksi Alkali Deded Nawawi; Adesna Fatrawana; Wasrin Syafii
Jurnal Ilmu Kehutanan Vol 15 No 1 (2021): Maret
Publisher : Fakultas Kehutanan Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (546.99 KB) | DOI: 10.22146/jik.v15i1.1512

Abstract

The dissolution of wood lignin in the alkali solution were analyzed for two fast growing species, sengon (Paraserianthes falcataria) dan leda (Eucalyptus deglupta). Wood samples were extracted in 1% sodium hydroxide solution in cold and hot temperatures for 24 and 1 h, respectively. Extractable substances content, permanganate consumption (expressed as assumed lignin content) were analyzed from the filtrates, lignin content and diastereomeric of β-O-4 structure were analyzed from the wood residue after alkali extraction. The extracted substances from both of wood in hot alkali was higher than in cold alkali solution, although the time of cold alkali extraction was much longer that hot alkali extraction. Assumed lignin content in the extract was quite high in both samples which were 34.4-42.9% and 35.5-39.8% including 2,15-2,29% dan 1,04-1,32% of lignin for cold and hot alkali extraction, respectively. The changes in stereo isomeric form, erythro and threo, of β-O-4 structure of lignin in wood residue indicated that partial depolimerization of lignin was takec place during alkali treatment.
Agroforestri Kelapa Sawit Sekala Kecil di Jambi dan Kalimantan Tengah: Hambatan dan Faktor-faktor yang Mempengaruhi Adopsi Ari Susanti; Hero Marhaento; Dwiko Budi Permadi; Budiadi Budiadi; Muhammad Ali Imron; Hermudananto Hermudananto; Handojo Hadi Nurjanto; Denni Susanto; Heri Santoso; Irfan Bakhtiar; Siti Maimunah
Jurnal Ilmu Kehutanan Vol 15 No 1 (2021): Maret
Publisher : Fakultas Kehutanan Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2014.066 KB) | DOI: 10.22146/jik.v15i1.1513

Abstract

Oil palm has become an important export commodity for Indonesia and has been cultivated by both smallholders and large scale companies mainly as monoculture plantations. Research suggests that this massive monoculture practice has led to adverse impacts on natural and social systems. Smallholders encounter difficulties to cope with extreme climate events such as long dry seasons, fluctuating commodity price and long-term tenure insecurity. We argue that oil palm agroforestry (OPAF) could become a promising and realistic alternative to deal with these problems under social forestry (SF) program. To date, OPAF has been adopted by merely small number of smallholders in Indonesia in a limited scale. This article aims at analysing the barriers and factors which influence the decision of smallholders in adopting OPAF. We employ a hybrid method which combines qualitative and quantitative analysis. Binary logistic regression models were constructed to identify factors influencing OPAF adoption. Our findings suggest that education, having side job and relative location of smallholders’ have significantly influenced smallholders’ decision in adopting OPAF. Knowledge gaps especially on the yields and management of OPAF have likely led to low OPAF adoption.
Kontribusi Industri Bambu di Kabupaten Gunungkidul bagi Sumber Penghidupan Para Petani dan Pengrajin Marcellinus Mandira Budi Utomo
Jurnal Ilmu Kehutanan Vol 15 No 1 (2021): Maret
Publisher : Fakultas Kehutanan Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (857.321 KB) | DOI: 10.22146/jik.v15i1.1514

Abstract

The bamboo industry has a role in the rural economy as a source of livelihood. This research has examined the contribution of bamboo as a raw material for farmers and as a bamboo product for artisan, from the perspective of direct use and income. Through a case study approach to the kitchen equipment industry in Rongkop and durable bamboo in Patuk, a value chain research framework was carried out. Field observations, semi-structured interviews with 40 respondents, and focus group discussions were conducted to obtain primary data, and supported by secondary data from government documents. An analysis of expenditure-income accompanied by a descriptive qualitative analysis is used to explain the practices of these two industries and determine the economic contribution of the bamboo industry to each bamboo farmer and artisan in each chain. The products produced by each actor are allocated more for trade than for domestic use. The economic contribution for bamboo farmers in the durable bamboo chain and kitchen utensils to monthly income above the poverty line ranges between 7,7% - 13,5% and 6,4% - 8,9%, respectively. The economic contribution for artisan in durable bamboo chain and kitchen utensils chain to monthly income above the poverty line ranged between 13,2% -104% and 152% -472% respectively. Only kitchen utensil artisans make their activities in these two chains as the main work, while the other actors do not because the income from their businesses is still incidental.
Penilaian Wisatawan Terhadap Komponen Destinasi Wisata: Atraksi, Amenitas, Aksesibilitas dan Pelayanan Tambahan Pada Objek Wisata Kebun Raya Liwa Machya K. Tsani; Sugeng P. Harianto; Trio Santoso; Niskan W. Masruri; Gunardi D. Winarno
Jurnal Ilmu Kehutanan Vol 15 No 1 (2021): Maret
Publisher : Fakultas Kehutanan Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1005.558 KB) | DOI: 10.22146/jik.v15i1.1515

Abstract

The development of a tourist attraction must pay attention to the tourists’necessity. To fulfill these needs there are 4 main components that must be fulfilled. This study aims to determine the assessment of tourists to the 4 main components (attraction, amenities, accessibility, and ancillary service) on the natural attractions of the Liwa Botanical Garden. This research was carried out in the Liwa Botanical Garden located in Kubu Perahu Village, Balik Bukit District, Liwa City, West Lampung Regency. Data was collected for 100 tourists by accidental sampling. Data analysis using a likert scale and data scoring. The results showed that of the 4 components of tourist destinations in the KRL object, only the attraction component had adequate value. The three other components (accessibility, safety and ancillary services) are in the sufficient category so that it would be better if there were improvements to the indicators of the 3 other variables such as: addition of public transportation, control of parking areas, addition of food stalls, procurement of lodging for public, improvement of central services information, the addition of public toilets, provided a special place to buy souvenirs, giving pictures of the types of rubbish in the trash, and need to add a communication network spot so that tourists feel more comfortable and enjoy their visit.
Penilaian Adaptasi dan Strategi Mitigasi Perubahan Iklim pada Masyarakat Agraris di Kordofan Utara Sudan Mohammed Mohammed; Salih Omer Tutu; Hassan Elnour Adam; Alawia Osman Koli; Abdalla Nourain Omer Abdalla
Jurnal Ilmu Kehutanan Vol 15 No 1 (2021): Maret
Publisher : Fakultas Kehutanan Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1891.4 KB) | DOI: 10.22146/jik.v15i1.1516

Abstract

The current study was conducted in Bara Locality- North Kordofan - Sudan to assess climate change adaptation and mitigation strategies among agrarian communities. Qualitative and quantitative data were collected by randomly interviewing 150 respondents from ten villages, using questionnaire. Descriptive statistics in SPSS software package and Microsoft Excel were used for data analysis. Results of study showed that agrarian communities, and due to climate change, have enforced to develop ten adaptation strategies suitable for agriculture in dryland conditions. The most adaptation strategies being used by the agrarian communities, are cultivation in different directions locally Sheraik (77%), sowing before rain locally Ramail (77%) and reducing cultivated area as mentioned by 67% of interviewed respondents. In forests sector, around 65 % of the interviewed respondents have been practiced agro-forestry as an adaptation strategy. The interviewees were also able to figure out 6 possible mitigation strategies to stave off climate change effects. These strategies are for example building capacity of agrarian communities (73%) and provision of early mature, high yielding and drought tolerant crops (63%). The study come out with some suggestions in order to pave the way for policymakers to tailor suitable future interventions to mitigate the impact of climate change among agrarian communities.
Autekologi Begonia di Beberapa Lokasi di Pulau Flores Sutomo Sutomo; Rajif Iryadi
Jurnal Ilmu Kehutanan Vol 15 No 1 (2021): Maret
Publisher : Fakultas Kehutanan Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2716.776 KB) | DOI: 10.22146/jik.v15i1.1517

Abstract

Human activities in forest areas such as over-harvesting of Begonia species without being balanced with their cultivation activities can threaten the existence of Begonia in nature. Autecological studies of species in their natural habitat are the initial activities for the conservation of plant species. The purpose of this study was to study the distribution of Begonia on Flores and environmental/ microclimate characteristics in several locations on Flores Island. The 10x10 m plots were placed with purposive sampling with a minimum interval of 50 m. Multivariate analysis using Canonical Corespondence Analysis (CCA) was employed to determine the effect of microclimatic factors on the composition of vegetation. Begonia kelimutensis is endemic in Kelimutu National Park, Flores lives at an altitude of 1,527 asl, at soil pH 5,8 and soil moisture of 75%, with a slope of 10 ° on the forest floor and light intensity 4,640 klux. In addition, five types of Begonia that we estimate have not been identified and two of them are identified as Begonia sumbawaensis Girm. and Begonia brangbosangensis Girm. Begonia kelimutuensis is distributed at a higher altitude than Begonia brangbosangensis. B. sumbawaensis is influenced by the slope factor while B. longifolia tends to be related to the air humidity factor. B. kelimutuensis is also often found living with Macaranga sp., and Litsea sp. B. brangbosangensis, also found near Homalanthus sp. and Calliandra callothyrsus.