Jurnal Manajemen Hutan Tropika
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Interaction of Fertilization and Weed Control Influences on Growth, Biomass, and Carbon in Eucalyptus Hybrid (E. pellita × E. brassiana)
Get PDFFertilization and weed control are regularly conducted as the main silvicultural prescriptions in the eucalyptus plantation forest. However, the interaction effects of both treatments on eucalyptus performance are still not deeply understood, even though these treatments require high investment. This circumstance may potentially inhibit the managers to formulate more efficient maintenance strategy for increasing stand productivity. This study examined the interaction effects of fertilization and weed control on growth, biomass, and carbon storage in eucalyptus hybrid (E. pellita x E. brassiana). Results demonstrated that without both treatments, the average stand volume only reached 37.9 m3 ha -1 with the mean biomass and carbon storage approached 25.4 and 12.7 Mg ha -1, respectively. In contrast, the use of both treatments simultaneously improved the mean volume around 60.4 m3 ha -1 with the average biomass and carbon storage closed to 37.6 and 18.8 Mg ha -1. Furthermore, the development of eucalyptus hybrid using fertilization without weed control only gained the mean wood production approximately 58.7 m3 ha -1 while the practice of weed control without fertilization only resulted the average volume nearly 43.7 m3 ha -1. These facts indicated fertilization exhibited higher influence than weed control on the performance of eucalyptus hybrid
Evaluation of Tree Detection and Segmentation Algorithms in Peat Swamp Forest Based on LiDAR Point Clouds Data
Get PDFApplication of LiDAR for tree detection and tree canopy segmentation has been widely used in conifer plantation forest in temperate countries with high accuracy, however its application on tropical natural forest especially peat swamp forest hardly found. The objective of this study was evaluated algorithms of individual tree detection and canopy segmentation used LiDAR data in peat swamp forest. The algorithms included (a) Local Maxima (LM) with various variable window size combined with growing region, (b) LM with various variable window size combined with Voronoi Tessellation, (c) LM with various fixed window size combined with growing region, (d) LM with various fixed window size combined with Voronoi Tessellation, and (e) Tree Relative Distance algorithm. The results show that algorithm with the best accuracy was the Tree Relative Distance algorithm with the highest overall F-score of 0.63. The tree relative distance algorithm also provides the highest accuracy in determining three tree parameters which are position, height and diameter of tree canopy with a RMSE value 1.08 m, 6.45 m and 1.19 m, respectively
Institutional Capacity of Forest Management Unit in Promoting Sustainable Community-Based Forest Management. Case Study of Forest Management Unit in Central Sulawesi Province, Indonesia
Get PDFThe main issue of forest management policies in Indonesia is strengthening the role of Forest Management Unit (FMU) and community-based forest management. This study describes the performance of FMU and the priority needs for the institutional strengthening of FMU to promote community-based forest management in Central Sulawesi Province. The research applied a case study\u27s descriptive method by exploring, classifying, and understanding the meaning of the problems encountered by the object examined. The study shows that the performance of the FMUs was not yet optimal in promoting community-based forest management. This problem attributed to the weak institutional capacity of FMU. Several aspects of the institution need improvements, including strengthening its capacity at the resort level, fulfilling the needs and capacity building of extension staff, as well as providing a legal mechanism for financial management to facilitate its business activities and cooperation. These priority needs were affected by government bureaucratic issues. It necessary the policy formulation governing the strengthening of community-based forest management in the FMU area that supports the independence goals of FMU
Community Forest Scheme: Measuring Impact in Livelihood Case Study Lombok Tengah Regency, West Nusa Tenggara Province
Get PDFCommunity forest (Hutan Kemasyarakatan/HKm) is one of the social forestry scheme policies stipulated by the Indonesian government to give partial rights to the community to be able to manage the state forest area. This scheme has implemented for more than ten years, and that includes areas in Lombok Tengah Regency. This research aims to analyze the impact of social forestry scheme policies on the economy of communities around forests and conducted in May–August 2019. By the HKm scheme, the community can manage up to 0.5 ha forest area per person and expected to increase livelihood benefits as well as improve conservation outcomes such as decreasing illegal logging and planting more trees. Based on the study conducted, the community has experienced an increase in livelihoods as well as improvements in environmental conditions. Indicator used in measuring community welfare is per capita income, which noted in the study area is IDR3,609,603 annually and inequality (Gini coefficient), which noted less than 0.4 or in the \u27low\u27 category. This study shows that the Gini coefficient in the research location is high (0.530). When compared, the income gap in the group of respondents who got the HKm program was better than the group of respondents who did not. The Gini coefficient data shows that the HKm program quite succeeds in target to increase livelihood benefits. The HKm program expected to improve the level of income inequality (Gini coefficient) from 0.483 (HKm) compared to 0.566 (non-HKm). These findings are important messages to further the HKm scheme policies
Carving The Future of Nature Ecotourism in Indonesia: Case of Taman Wisata Alam Telogo Warno Telogo Pengilon
No full textIndonesia has potential ecotourism spots that are need to be utilized as well as to increase the value of forest benefits from the aspect of environmental services while maintaining the function of the area. However, there are contraints in managing natural tourism in conservation areas according to the concept of sustainable tourism. This study focuses on the performance of sustainable nature tourism management applied in Taman Wisata Alam Telogo Warno Telogo Pengilon (TWA TWTP) that is carried out in the form of a partnership between the Balai Konservasi Sumber Daya Alam Jawa Tengah (Central Java Natural Resources Conservation Office; BKSDA) and PT. Alam Indah Bonbin Lestari (AIBBL) as the holder of Ijin Usaha Penyediaan Sarana Wisata Alam (Business License for the Provision of Nature Tourism Facilities; IUPSWA). The results show positive improvement in the management of TWA TWTP. However, several issues that require immediate improvement still remain. In general, all of the aspects are categorized in to four scopes: (1) management of effective sustainable tourism destination, (2) the optimization of economic benefits for local communities, (3) the optimization of cultural preservation for the communities and visitors, and (4) environmental conservation. 
Enhancing the Role of the District Government in Decentralized Forest Management
Get PDFFollowing the enactment of Law Number 23 of 2014 on the Regional Government, which superseded Law Number 22 of 1999 and Law Number 32 of 2004, now the local government has no longer holds an authority to manage state forest areas, except “grand forest park” (Taman Hutan Raya) located in their respective administrative areas. The management of production forests and protected forests (located at state forest areas) is the authority and responsibility of the provincial government, while the management of conservation forests is the authority of the central government. The success of forest management and management program activities is determined, among others, by government and local government policies and their implementation at the site level. By considering ntthe complexity of forest management, the context of decentralization, and available resources as well as constrained authority, this study aims to identify the level of importance, priorities, and main roles of district governments in forest management by applying the analytic network process (ANP) method. This study suggests that the district government could play a significant role in building social capital, which serves as a first step in developing collaborative forest management by promoting the optimization of multipurpose forests to preserve forests
Effects of Transfer of Right and Jurisdictional Boundary on Mining Reclamation Performance in East Kalimantan Forest Areas
No full textMining is still considered to be an essential sector to gain national income and to provide energy supply. Forest Leasehold License (FLL) is a mechanism to accommodate the non-forestry sector, including mining development in the forest area. This license is a form of transfer of right given from Minister of Environment and Forestry to a mining license holder. Transfer of right by FLL contractual shaped jurisdictional boundary that is one of the obligations that has to be complied by FLL holder is to conduct mining reclamation. This study aimed to analyze the effects of FLL and its jurisdictional boundary on mining reclamation performance in East Kalimantan forest areas. It is a descriptive qualitative study based implemented the agency theory with the institutional approach. The study found that mining permit and FLL is a temporary transfer of right. The emerging problem in the FLL and its jurisdictional boundary related to asymmetric information and transaction cost caused moral hazards such as adverse risk selection of FLL holders by the principal, reclamation ignorance by the agent, and opportunism both from principal and agent. These agency problems affect FLL reclamation performance that just reached 41.35% over disturbed areas. Institutional challenges are due to the regulation gap creating a conflict of interest, budget and human resource constrain, cost center activity, and lack of economic incentive as well as lack of coordination among the government institutions. The research findings suggested inputs for institutional arrangement in terms of transfer of the right, including FLL reclamation process business, to improve its performance in the East Kalimantan forest area
Mangrove Forest Utilization for Sustainable Livelihood through Community-Based Ecotourism in Kao Village of North Halmahera District
Get PDFThis article aims to describe the mangrove forest utilization for sustainable livelihood through a community-based ecotourism approach. This research conduct in Kao Village, North Halmahera District of Indonesia. This study was done in a qualitative method using a life-history approach. The data was collected through in-depth interviews, observation, and document study. The data were analyzed using a triangulation method to obtain credible information. These research findings show that cultural value, known as Higaro was able to mobilize the capability to access resources such as natural and social capital. In its development, assimilation and acculturation caused changes in livelihood structure. In addition, The mining sector\u27s existence in the Kao community custom area had the potential to limit access to natural and social capital due to ecological loss. However, the mining sector could mobilize human and physical capital through Social Performance programs in the education sector and infrastructure development. The adverse effects of the mining sector to the environment had become such a stimulus for the Kao Village community to adopt an environmentally friendly development approach that had economic value and was able to improve the community welfare. Thus, the Kao Village community managed to maintain and utilize the mangrove forest using a community-based ecotourism approach to endurance livelihood sustainability. These results could be developed into recommendations for regional policymakers, especially in the rural areas, to mobilize the capability of local community access to capitals through the tourism sector to maintain livelihood sustainability
Identifying The Key Variables for Assessing The Reclamation Success on Early Growth Vegetation in Ex-exploration of Oil and Gas Mining Areas
Get PDFThis paper examines the identification of key indicators that could be used to measure the success of reclamation plants in post-exploration oil and gas mining areas. The main objective of this research was to find key indicators or variables for evaluating the level success of reclamation results in the post-mining of oil and gas area. In this study, 44 environmental variables of the physical, biological, soil, water and air indicators were analyzed from 70 field plots of 6 reclamation and 2 natural forest sites. The analysis methods included (1) cluster analysis using the Agglomerative Hierarchical Clustering method with the Ward\u27s method, and (2) quadratic discriminant analysis. The results of the clustering analysis showed that there were some clusters due to variation of biomass, water, soil and air conditions. The three clusters developed based on water and/or air variables provided high cophenetic correlation (0.80) with low within-cluster (14.5%) and high between-cluster variations (85.5%). Based on the multicollinearity analysis, average vector difference test, variance matrix variance test, unidimensional test of each variable and quadratic discriminant function, this study found that there were 3 key indicators determining variations of the quality of the reclamation plantations within the study sites, namely, biological indicator of biomass volume (Bio_B); soil indicator of P content in the soil (Tnh_P), saturation base of soil (Tnh_Kb), Manganese (Mn) content in the soil (Tnh_Mn), Sulfur content in the soil (Tnh_S), percentage of ash in the soil (Tnh_Ab), percentage of clay in the soil (Tnh_Li), and water indicator of chloride content in the surface water (Air_Cl). The examination on four classes of the reclamation quality showed that the classes were successfully classified having excellent cross-validation error matrix with overall accuracy more than 90%
