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INDONESIA
MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management
Published by Institut Pertanian Bogor
ISSN : 20870469     EISSN : 20892063     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Manajemen Hutan Tropika is a periodic scientific articles and conceptual thinking of tropical forest management covering all aspects of forest planning, forest policy, utilization of forest resources, forest ergonomics, forest ecology, forest inventory, silviculture, and management of regional ecosystems.
Arjuna Subject : -
Articles 547 Documents
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Structure and Dominance of Species in Mangrove Forest on Kutai National Park, East Kalimantan, Indonesia Muli Edwin, Muli; Muli Edwin; Iin Sumbada Sulistyorini; Erny Poedjirahajoe; Lies Rahayu Wijayanti Faida; Ris Hadi Purwanto; Imanuddin
Jurnal Manajemen Hutan Tropika Vol. 27 No. 1 (2021)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.7226/jtfm.27.1.59

Abstract

The Kutai National Park (KNP) which is located in East Kutai Regency on East Kalimantan Province is endowed with numerous pristine of mangrove forest. However, related information to the species composition and diversity of KNP mangrove is still scanty. Twenty-one of mangrove species were recorded using the quadratic transects survey method (total plot area of 1.7 ha). Main species of mangrove communities were Avicennia lanata, A. marina, Bruguiera gymnorrhysa, B sexangular, Ceriops tagal, Rhizophora apiculata, R. mucronata and Sonneratia Alba. Mangrove density was recorded reached as 1,699 trees ha-1, saplings of 4,395 ha-1 and seedlings 25,348 ha-1. Significant tree density was found in Pandan Bay Estuary. While in the Lombok Bay and the Kaba Bay significant for sapling and seedling categories. Importance value index of mangrove species in the three study locations for three growth categories (tree, sapling and seedling) showed significant differences (p-value> α0.05). Mangrove stand at three study locations has almost the same characteristics. The species diversity and evenness index has shown the same distribution pattern. The findings of this study suggest that KNP mangrove forest stand is not heavily damaged even though there is a lot of human activity. This mangrove could be managed and conserved for multi-sectoral purposes such as ecotourism, research, biodiversity and education rather than solely as a Nature Conservation Area.
The Failure Factors of Collective Action in Promoting the Recognition of Customary Forest: Case of Kenegerian Rumbio Customary Forest in Riau Province Fahrul Rozi Sembiring; Leti Sundawati; Bramasto Nugroho
Jurnal Manajemen Hutan Tropika Vol. 27 No. 2 (2021)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.7226/jtfm.27.2.110

Abstract

One of the five schemes in social forestry program in Indonesia is customary forest recognition. Kenegerian Rumbio Customary Forest, a customary forest in Riau Province, is failed in the recognition process. The objectives of this study are to analyze the failure factors of collective action and to formulate strategies to encourage the success of collective action on recognition of Kenegerian Rumbio Customary Forest. This research was built by using both quantitative and qualitative approach where the data were collected by using survey and in-depth interviews. The research results found that improper facilitation caused by communication issues between involved parties, the absence of the symbolic power, the failure in forming the common knowledge are the factors leading to the failure of collective action. To reconstruct the collective action, this study offered four strategies: (1) to frequently communicate with personal approach to the two highest indigenous leaders with whom facilitators have difficulty communicating well, (2) to mediate the two conflicted indigenous leaders for generating their motivation to propose their forest, (3) to conduct socialization to all indigenous leaders (40 jini) and community representatives to increase an understanding regarding the purpose and importance of recognition of customary forest, and (4) to conduct a participatory mapping to reduce area border issues among two sub-tribes.
Allometric Equations for Estimating Aboveground Biomass of Eucalyptus urophylla S.T. Blake in East Nusa Tenggara Ronggo Sadono; Wardhana Wahyu; Pandu Yudha Adi Putra Wirabuana; Fahmi Idris
Jurnal Manajemen Hutan Tropika Vol. 27 No. 1 (2021)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.7226/jtfm.27.1.24

Abstract

Understanding the essential contribution of eucalyptus plantation for industry development and climate change mitigation requires the accurate quantification of aboveground biomass at the individual tree species level. However, the direct measurement of aboveground biomass by destructive method is high cost and time consuming. Therefore, developing allometric equations is necessary to facilitate this effort. This study was designed to construct the specific allometric models for estimating aboveground biomass of Eucalyptus urophylla in East Nusa Tenggara. Forty two sample trees were utilized to develop allometric equations using regression analysis. Several parameters were selected as predictor variables, i.e. diameter at breast height (D), quadrat diameter at breast height combined with tree height (D2H), as well as D and H separately. Results showed that the mean aboveground biomass of E. urophylla was 143.9 ± 19.44 kg tree-1. The highest biomass were noted in stem (80.06%), followed by bark (11.89%), branch (4.69%), and foliage (3.36%). The relative contribution of stem to total aboveground biomass improved with the increasing of diameter class while the opposite trend was recorded in bark, branch, and foliage. The equation lnŶ = lna + b lnD was best and reliable for estimating the aboveground biomass of E. urophylla since it provided the highest accurate estimation (91.3%) and more practical than other models. Referring to these findings, this study concluded the use of allometric equation was reliable to support more efficient forest mensuration in E. urophylla plantation.
The Growth of Lemongrass (Cymbopogon nardus (L.) RENDLE) in Agroforestry and Monoculture System on Post-Coal Mining Revegetation Land Anna Juliarti; Nurheni Wijayanto; Irdika Mansur; Trikoesoemaningtyas
Jurnal Manajemen Hutan Tropika Vol. 27 No. 1 (2021)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.7226/jtfm.27.1.15

Abstract

Lemongrass (Cymbopogon nardus) as cover crop was suitable planted with agroforestry and monoculture system on post-coal mining revegetation land. The study investigated the influence of planting system, varieties, and plant spacing against the lemongrass growth on post-coal mining land under the agroforestry and monoculture system. Two lemongrass varieties were planted under on both planting systems. The growth variables of lemongrass measured were the tillers number per clump, leaf length, and canopy width. The results showed that the planting system and lemongrass varieties were able to increase the growth of lemongrass. Plant spacing treatment was able to increase the tillers number per clump. The agroforestry system was able to increase leaf length and canopy width of lemongrass. However, monoculture system was able to increase the tillers number per clump. The G2 variety had better growth on all measured variables either in agroforestry and monoculture system compared to Sitrona 2 Agribun variety. The plant spacing of 0.5 m × 0.5 m had greater tillers number per clump of lemongrass compared to plant spacing of 1 m × 1 m.
Canopy Cover Estimation in Lowland Forest in South Sumatera, Using LiDAR and Landsat 8 OLI imagery Muhammad Buce Saleh; Rosima Wati Dewi; Lilik Budi Prasetyo; Nitya Ade Santi
Jurnal Manajemen Hutan Tropika Vol. 27 No. 1 (2021)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.7226/jtfm.27.1.50

Abstract

Canopy cover is one of the most important variables in ecology, hydrology, and forest management, and useful as a basis for defining forests. LiDAR is an active remote sensing method that provides the height information of an object in three-dimensional space. The method allows for the mapping of terrain, canopy height and cover. Its only setback is that it has to be integrated with Landsat to cover a large area. The main objective of this study is to generate the canopy cover estimation model using Landsat 8 OLI and LiDAR. Landsat 8 OLI vegetation indices and LiDAR-derived canopy cover estimation, through First Return Canopy Index (FRCI) method, were used to obtain a regression model. The performance of this model was then assessed using correlation, aggregate deviation, and raster display. Lastly, the best canopy cover estimation was obtained using equation, FRCI = 2.22 + 5.63Ln(NDVI), with R2 at 0.663, standard deviation at 0.161, correlation between actual and predicted value at 0.663, aggregate deviation at -0.182 and error at 56.10%.
Visual Evaluation of Soil Structure (VESS) Method to Assess Soil Properties of Agroforestry System in Pangalengan, West Java Bima Dwi Siswanto Aji; Nurheni Wijayanto; Basuki Wasis
Jurnal Manajemen Hutan Tropika Vol. 27 No. 2 (2021)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.7226/jtfm.27.2.80

Abstract

Agroforestry is an alternative land use that not only provides benefits in economic aspects, but also in ecological aspects including improving soil quality. This research aims to evaluate the physical quality of soil in various types of land use, including agroforestry systems and evaluate the efficiency of the VESS method in determining soil physical quality. This study uses the VESS method to analyze soil quality in six land uses in Pangalengan, West Java (i.e. agroforestry, forest, tea plantations, coffee plantations, agriculture cultivation, and abandoned land). It used The VESS method because it has been widely applied in many countries, but has never been applied in Indonesia. Soil property parameters (BD, soil porosity, soil permeability, and SOC) were measured to correlate with the VESS score. VESS score ranged from 1 (good soil quality) to 5 (poor soil quality). The VESS score for each land type ranged from Sq 1.3–4.33. The soil quality in agroforestry (Sq 1.89–2.04) is not much different from natural forest (Sq 1.3). The VESS score has strong correlation (r) with soil property parameters (BD = 0.97, soil porosity = -0.97, soil permeability = -0.83, SOC = -0.94). A Strong correlation value indicates that the VESS method can be used to analyze soil quality.
A Model of Religious Moral Approach for Peatland Ecosystem Restoration in Indonesia Gugah Praharawati; Fachruddin Majeri Mangunjaya; Hendra Maujana Saragih; Aos Yuli Firdaus; Taufik Mei Mulyana; Fauziah Ilmi; Muhammad Zulham; Haris Gunawan; Suwigya Utama; Ernawati Sinaga
Jurnal Manajemen Hutan Tropika Vol. 27 No. 2 (2021)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.7226/jtfm.27.2.132

Abstract

Efforts to conserve peatlands and prevent forest fires are inseparable from human awareness and behavior. This study aims to find a model for a religious, moral approach by the clerics in supporting the implementation of peatland restoration. The study was carried out in designated Muslim locations with trained clerics. The farmers surveyed also have experienced by the Peatland Restoration Agency (BRG) programs: i.e., physical support, such as a canal dam program and demonstration plot of agriculture without burning (PLTB). The methods used combine quantitative surveys with a Likert scale to explore attitudes, subjective norms, perception, intention, and their impact on behavior. The results obtained show that the community religious leaders can be an important trigger in encouraging the movement. In the model, visible subjective norm (SN) variables contribute directly to intention by 23%. Perceived behavior control (PBC) directly has a positive and significant effect on intention 53% (p-value). This means the individual, in making a decision and intention to participate, is a factor that has a broad impact on the community and gives a positive value of 53% (good enough) on the intention. The individuals' decisions to participate in peatland conservation are prompted by perception of having a wide impact on the community.
Space Planting, Competition, and Productivity of a Seven-Year-Old Clonal Teak Plantation in the East Java Monsoon Forest Area Rika Bela Rahmawati; Suryo Hardiwinoto; Widiyatno; Budiadi; Yahya Amin; Hasanusi Hasanusi
Jurnal Manajemen Hutan Tropika Vol. 27 No. 2 (2021)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.7226/jtfm.27.2.123

Abstract

Tree breeding of teak results in selected clones with high growth. Intensive silviculture is required to support a large-scale clonal teak plantation. Appropriate spacing is one of the methods to increase forest plantation productivity. Research of teak clone spacing was conducted on a seven-year-old clonal teak plantation with randomized completely block design. The treatments tested in this study were four plant spacing distances, namely, 3 m × 3 m, 6 m × 2 m, 8 m × 2 m, and 10 m × 2 m. Results show that spacing had significantly different effects on diameter, height, bole height, branch angle, crown area, crown projections, volume, and competition index. However, the height growth did not exhibit any significant differences. The 10 m × 2 m spacing produced the best diameter growth, crown area, and competition index, but has a low volume per hectare and the lowest height of free branch and branch angle. Meanwhile, the 3 m × 3 m spacing will increase bole height and stand volume per hectare. This result suggests that spacing could improve the growth of teak clone but must be followed by intensification of proper maintenance to reduce branch angle and increase bole height.
Abundance of Associated Arbuscular Mycorrhizal Fungi with Pioneer Plants in Affected Area by Mount Merapi Eruption Oktira Roka Aji; Inggita Utami; Cucu Cahyanti
Jurnal Manajemen Hutan Tropika Vol. 27 No. 2 (2021)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.7226/jtfm.27.2.100

Abstract

Arbuscular mycorrhizal fungi (AMF) with mutualism symbiosis with plants are associated with the Fabaceae family's pioneer plants. This study aims to determine the percentage of AMF in the roots and the AMF spore's abundance in the rhizosphere of pioneer plants Calopogonium mucunoides Desv. and Vigna Unguiculata (L.) Walp in Mount Merapi National Park after the 2010 eruption. The methods used for root infection analysis were slide methods and root staining, while spore analysis was wet sieving methods. The results showed the highest percentage of AMF infection in C. mucunoides root was found in an area with moderate damage. The highest percentage of AMF infection in V. unguiculata was found in an area with minor damage. The highest number of spores in the two plants' rhizosphere soil was found in an area with minor damage with an average of 10.4 and 9. The levels of damage by Mount Merapi's eruption did not significantly affect the percentage of AMF infection and the number of spores. Glomus dominates all study sites in both plants. Soil organic carbon is one of the abiotic factors correlated with the number of spores in rhizosphere soil.
Implementation of The Concept of Conservation Area Buffer Zone in Indonesia Salwa Nadhira; Sambas Basuni
Jurnal Manajemen Hutan Tropika Vol. 27 No. 1 (2021)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.7226/jtfm.27.1.32

Abstract

Conservation area buffer zones are recognized to provide ecological, social, and economic benefits in supporting conservation areas' integrity. Nevertheless, little is known hitherto about the development dynamics of conservation area buffer zones in Indonesia. Therefore, a study concerning theory, policy, and management of the conservation area buffer zones in Indonesia is necessary to analyze its performance, identify problems in its implementation, and formulate its evidence-based development policy. This study aims to identify and analyze issues in implementing the concept of conservation area buffer zone as well as recommend policy formulation to accelerate the development of conservation area buffer zones in Indonesia. This study is an exploratory research through a literature review with semi-systematic approach. It finds that there are only nine out of 530 (1.7%) conservation areas in Indonesia with a formally established buffer zone. This condition is mainly due to the absence of buffer zone institutions at the regional government levels. Meanwhile, the management of supposedly buffer zones has been conducted through various projects for strengthening the functions of buffer zones by conservation area managers, either in the form of land-based or non-land-based projects. This study results in recommendations for all interested parties to urge the Ministry of Environment and Forestry and the Ministry of Home Affairs to promulgate and renew the regulations concerning the procedures of establishing and managing conservation area buffer zones. Moreover, regarding the institutional aspect, there is a need for a particular structure in both ministries to address community empowerment issues at the site level.

Page 41 of 55 | Total Record : 547

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