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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 6 Documents
 1 
Search results for , issue "Vol. 24 No. 2 (2018)" : 6 Documents clear
Possibility of Harnessing Social Capital to Support the Development of Payment for Environmental Services in Small-Scale Forests: A Case of Jatigede Catchment Area Nunung Parlinah; Bramasto Nugroho; Muhamad Buce Saleh; Hendrayanto Hendrayanto
Jurnal Manajemen Hutan Tropika Vol. 24 No. 2 (2018)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

The concept of social capital has gained attention as a source of support in implementing Payment for Environmental Services (PES). Environmental services, in the context of better water yields in watersheds, is affected by good land cover conditions of forests including small-scale private owned forests. Although some research results indicate that private owned forests are more economic oriented than environmental functions, but its existing social capital can be harnessed to implement PES in small-scale forests. The aim of this study was to analyze the potential of social capital as a source of support in the implementation of PES. The research was conducted by survey method. This research revealeds that the level of trust in local community leaders is very high. This role models can be an key entry point for realizing the PES scheme by strengthening the common knowledge of environmental benefits of small-scale forests and strengthen community norms related to the protection of water resources. Leadership and networking capabilities of the community institution leader give a real influence in collaboration between groups.
Comparison of Nyamplung Plant Establishment: Direct Seeding, Bare-root, Blocked Media, and Containerized Seedlings Dede J. Sudrajat; Nurhasybi Nurhasybi; Eliya Suita
Jurnal Manajemen Hutan Tropika Vol. 24 No. 2 (2018)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Nyamplung (Calophyllum inophyllum L.), a native multipurpose tree species, produces good general-purpose timber, biodiesel, and medicine. The most widely used method of establishing the species is transplanting nursery-grown containerized seedlings. The research was aimed to compare the success of plant establishment methods, including direct seeding, direct seeding using seed pellet, bare-root seedling, containerized, and blocked media seedlings. Randomized block design with three blocks was set up for evaluation of field performances including seedling survival, height, collar diameter, root development, and biomass at nine months old. The estimated cost based on 1000 target plants in each method was calculated. Seedling grown up on blocked media and containerized media had the highest field performances (survival, growth, and biomass) followed by bare-root seedlings. Direct seeding using seed pellet tended to have better root formation, especially in tap root length, tap root biomass, and bellow-ground biomass. Based on the cost estimation, direct seeding was twice lower compared to transplanting of containerized and blocked media seedlings. However, planting of blocked media and containerized seedlings was more effective in rapidly growth and establishing canopy, but need higher cost. Whereas direct seeding using seed pellet was more cost efficient. Direct seeding using seed pellet was a promising alternative method for plant establishment of nyamplung.
Social Capital in Mangrove Utilization for Silvofishery: Case Study in Kutai National Park, Indonesia Iin Sumbada Sulistyorini; Erny Poedjirahajoe; Lies Rahayu Wijayanti Faida; Ris Hadi Purwanto
Jurnal Manajemen Hutan Tropika Vol. 24 No. 2 (2018)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Social capital has an important role in mangrove management on conservation areas. Utilization of mangrove forest with silvofishery system can be an alternative developed for the community around the conservation areas. The purpose of this research is to know the strength of social capital in supporting the utilization of mangrove for silvofishery. This research adopted Social Capital Assessment Tool method and data analysis with Partial Least Square-Structural Equation Modeling. The results of the study found that there were several elements of social capital in five study villages that have not supported silvofishery in Kutai National Park (KNP), East Kalimantan, Indonesia. The overall analysis of the respondents showed that there were five elements of social capital have significant effect on silvofishery. The other two elements were insignificant and should be of particular concern to be improved, i.e. social networks and social norms. Indicators to be aware of were the increased knowledge of communities on park-related regulations, increased involvement of individuals in the community, and the strengthening of public figures who can be role models for the community. Mangrove forest of KNP should be kept as conservation area, but it should still pay attention to the socio-economic conditions of the surrounding community. The strength of social capital is expected to realize conservation-based economic development.
Early Growth of Acacia mangium × Acacia auriculiformis Hybrid in a Clonal Test at Three Different Sites in Indonesia Sri Sunarti; Budiyansah Budiyansah; Arif Nirsatmanto
Jurnal Manajemen Hutan Tropika Vol. 24 No. 2 (2018)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

AbstractAcacia mangium × Acacia auriculiformis hybrid is a promising new option for forest plantations that is propagated using clonal technologies. However, its deployment must be supported by an understanding f how clones respond to differing environment conditions. A multi-site test is therefore necessary; in this   study, three sites, one in Central Java, and one each in Riau and Jambi were used. Between 20 and 44 clones were used at each site, and nine were common to each site. Each trial was laid out in a randomized complete block design with between four and 20 replications, and a between-tree spacing of either 3 × 3 m or 3 × 2 m. Height (H), diameter at breast height (D) and volume (V) were measured two years after planting. Growth rates in Riau and Jambi were substantially higher than in Central Java, a difference that can be attributed to soil type and rainfall. Significant differences were found among the clones for all these variables at all the three sites. For the three sites, clone repeatability was high and ranged from 0.91 to 0.97; ramet repeatability was moderate and ranged from 0.49 to 0.59. Clone x site interaction was highly significant in all parameters observed.  For the nine common clones, multi-site clone repeatability was also high (0.93-0.96), but ramet repeatability was low (0.26-0.35). The best performing clones were Clones 4, 6 and 44. However there were differences in ranking, and only Clone 44, in Central Java and Riau, was the best performing. The experiment has shown the importance of these trials for developing strategies for deploying clonal stock. However the results suggest that it will take longer than two years for a clear pattern of differences between clones to emerge.Keywords: new variety, clone, repeatability, multi-site
A Study of Flood Causal Priority in Arui Watershed, Manokwari Regency, Indonesia Mahmud Mahmud; Ambar Kusumandari; Sudarmadji Sudarmadji; Nunuk Supriyatno
Jurnal Manajemen Hutan Tropika Vol. 24 No. 2 (2018)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Papua is the final fortress of forests in Indonesia. However, floods recently occurred in Jayapura, Paniai, and Manokwari. If causal factors are not identified and early anticipated, the flood will become an annual disaster with more severe impacts. This study aims to identify main factors causing floods using scoring analysis. Data collected include: rainfall, river gradient, water discharge, drainage density, watershed shape, slope and land use. The research results show that the main factor of floods are average daily rainfall in wet month by 86.53 mm day-1 (rather high) with a score of 28, land use dominated by forest and plantation (rather low and medium) with a score of 21, watershed slope dominated by 1-<8% (high) with a score of 5, drainage density of 6.4 (medium) with a score of 3, watershed shape (Rc of 0.30 < Re 0.71) with  somewhat/elongated shape with a score of 2, and river gradient of 0.0062 (low) with a score of 2 respectively. High rainfall causes greater flow of water and runoff. Land use dominated by plantations (21.46%) is thought to be one of the main causes of floods in Masni District. Flood mitigation does not mean that rain should be reduced, but regulates/manages such as stopping the conversion of forest into palm oil plantations, reducing surface runoff by applying soil conservation, making bypass from meandering, dredging sediments, and constructing retaining walls.
Habitat Suitability of Release Site for Javan Gibbon (Hylobates moloch) in Mount Malabar Protected Forests, West Java Anton Ario; Agus Priyono Kartono; Lilik Budi Prasetyo; Jatna Supriatna
Jurnal Manajemen Hutan Tropika Vol. 24 No. 2 (2018)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

The javan gibbon reintroduction program requires assessment of suitable habitat within release sites to assure the survival of released gibbons. We studied habitat suitability for javan gibbon beginning in April 2017, extending to June 2017 in the Mount Malabar Protected Forest (MMPF), West Java. The objectives of this study were to analyze the habitat suitability of the release site for javan gibbon in MMPF. Analysis of Geographical Information System (GIS) and Principal Component Analysis (PCA) approach were used to obtain habitat suitability values. Habitat suitability variables measured are elevation, Normalized Differential Vegetation Index (NDVI), Bareness Soil Index (BSI), distance from the road, farming, settlement, and open field. We found suitability valued areas consisting of high suitability covered 2,009.23 ha (22.31%), moderate suitability covered 2,497.46 ha (27.73%), and low suitability covered 4.499,65 ha (49.96%), from a total area ± 8.894,47 ha in MMPF.

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