Jurnal Manajemen Hutan Tropika
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Effect of Pandemic COVID-19 on Tropical Forest Cover in Small Island: Case Mansinam Island Papua using Google Earth Imagery
Full text linkCovid-19 became a global pandemic in 2020 and has multiple impacts on the economy, social, culture, food systems, and also the environment, especially on tropical forest cover in small island. This study aims to determine the impact of the Covid-19 pandemic on the forest cover of small populated islands. Using remote sensing and geographic information system technology based on high-resolution satellite imagery from google earth imagery, land cover was observed in 2018, 2020, and 2023. This study found that during the 2020 pandemic, tropical forest cover on small populated islands has decreased. Mansinam\u27s forest cover decreased by 4.3%, bare land increased by 80.6%, agricultural land increased by 75.3%, and shrubs increased by 54.9%. Another important finding is that 78.9% of the total deforestation was due to forest conversion to bare land and agricultural land. Land and forest utilization on small islands will increase when accessibility is limited, especially during the pandemic. Future studies will be on the structure and composition of species in locations that experienced deforestation during the pandemic and detailed studies related to changes in the occupations of Mansinam people due to the pandemic that have a relationship with forests
How do Tourists Perceive Risk and Develop Travel Preparedness? Influence of Destination Attributes and Knowledge
Full text linkThis study explores how destination attributes, such as accessibility, natural attractions, facilities, and disaster knowledge, influence tourists\u27 risk perceptions, ultimately shaping their travel preparedness. Data were collected through questionnaires distributed to 806 tourists visiting a tsunami-prone beach destination in Indonesia. Partial Least Squares Structural Equation Modeling (PLS-SEM) was implemented in the analysis. The findings indicate that accessibility and well-developed tourist facilities tend to lower tourists’ perceived risk, while disaster knowledge heightens it, leading to improved preparedness. Tourists generally feel safer when destinations offer accessible amenities and infrastructure, yet this sense of security may inadvertently decrease their readiness for disasters. This situation creates a paradox: While enhanced accessibility and high-quality amenities contribute to visitor satisfaction, they can unintentionally lower risk perception and preparedness levels. The study challenges the conventional view that accessibility and amenities are inherently beneficial, highlighting the importance of balancing these attributes with proactive risk management strategies. Destination providers, destination management organizations (DMOs), and governments should enhance tourists’ disaster awareness through well-crafted guidelines, educational campaigns, and community engagement programs; these efforts help equip tourists with the necessary knowledge to respond effectively in emergency situations. At the same time, they contribute to the development of safer and more enjoyable tourist destinations.
 
Non-timber Forest Products in Bu Gia Map: Local Use and Sustainable Management
No full textNon-timber forest products (NTFPs) in Bu Gia Map National Park (BGMNP) have played a critical role in local livelihood. Thus, the park resources have been threatened by local harvesting. Yet, the local perspective of the NTFP utilization between indigenous ethnic minorities (IMs) and Kinh peoples (KPs) has been poorly understood. Besides, in order to analyze the resource use between the IMs and the KPs, the “walk-in-the-wood” method and the participatory rural appraisal (PRA) were employed. This paper revealed that the local NTFP utilization gradually shifted from purely self-consumption to more income generation (p-value = 0.000 < 0.05). Besides, the IMs relied much upon the NTFPs, whereas the KPs were less dependent upon these resources. The IMs harvested these resources for more subsistence related to their traditional and basic needs than those KPs. Based on the local findings, the institutional management strategies in BGMNP should emphasize resource utilization patterns, human capital empowerment, and group-based arrangements. Likewise, group-based arrangements in BGMNP would play an important role in the local livelihood improvement and the sustainable park development
Community Support for Forest Conservation Policies in the Komodo Subdistrict
Full text linkThis study delves into the critical determinants that influence community support for forest conservation policies within the Komodo District, utilizing a logistic regression analysis to dissect the impact of various socioeconomic and demographic factors on local residents\u27 attitudes toward conservation. A detailed questionnaire was administered to 520 residents to capture perceptions of conservation measures, infrastructure development, and community involvement. Binary logistic regression revealed that the visibility of conservation efforts, including natural landscape protection and eco-friendly infrastructure, significantly influences public support for policies. There was a strong positive correlation between the visibility of conservation actions and community support. This includes visible protection of natural landscapes and eco-friendly infrastructure, which has significantly bolstered public approval. Adaptive business operations and local training initiatives were positively correlated with support for conservation policies, suggesting that economically beneficial conservation strategies are more likely to win public favor. Lower income levels were unexpectedly associated with more significant support for conservation policies, which could indicate a reliance on the benefits derived from conservation efforts. Conversely, younger demographic groups and island residents displayed a lower propensity to support existing policies. By aligning conservation efforts with the community\u27s economic and social priorities, policymakers can ensure broader support and sustainable engagement
Hydrological Responses to Rainfall Across Varying Canopy Densities in a Tropical Peat Swamp Forest
Full text linkPeat swamp forests play a vital role in carbon storage, water regulation, and biodiversity conservation. This study about the hydrological behaviour of three compartments in the Resak Tambahan Forest Reserve with different forest canopy densities categorized as degraded forest and good forest based. Groundwater levels (GWL) and rainfall data were collected and analyzed from April 2023 to June 2024 to evaluate the impact of forest conditions on water retention and hydrological stability. The results show distinct patterns in GWL fluctuations across forest types, with high forest cover density consistently maintaining higher water retention during wet months due to its dense vegetation. A moderate relationship exists between rainfall and GWL variability in all compartments of a healthy forest, with 51% to 65% of the variation in GWL attributed to rainfall amounts. In degraded forest areas, about 52% to 54% of the variation in GWL can also be linked to rainfall effects. Regression analysis revealed a stronger correlation between rainfall and GWL in forests with high canopy density compared to low- and medium-canopy-density forests, suggesting that intact canopy structures enhance predictability in hydrological responses. Conversely, low and medium canopy density forests displayed erratic fluctuations and weaker correlations, highlighting the impact of forest degradation on groundwater dynamics. These findings emphasize the importance of forest canopy density in regulating water cycles and highlight the need for restoration initiatives aimed at improving forest resilience through hydrological studies in degraded peat swamp forests
Production Potentials of Quality Tree Seeds from Orchards and Plantations in Tanzania
Full text linkAvailability of large quantities and high-quality planting materials is essential for sustainability of tree planting and quality forest products. However, there have been no sufficient information on production potential of quality and quantity of tree seeds. We assessed and compared seed production potential and germination capacity of four young (8 -14 years) and matured (15 -48 years) stands of plantations and seed orchards of Tectona grandis and Pinus patula located in different agro-climatic areas of Tanzania. In each seed source, 16 plots, measuring 100 x 100 m, were randomly selected. In each plot, seeds were collected from 30 trees bearing seeds and possessing good characters. Results showed that matured stands of T. grandis and P. patula produced significantly heavier seeds (51.4 kg ha-1) (926.1kg ha-1) than young stands (28.3kg ha-1) (782.6kg ha-1) respectively. The weight of seeds in orchards was significantly lighter (17.2kg/ha) than plantations (62.5kg/ ha) for P. patula whereas for T. grandis, the weight of seeds in orchards was heavier (911.8kg/ha.) than plantations (796.9kg/ha). Seeds from matured sources were significantly heavier than young seed sources (P<0.05). The weight of T. grandis and P. patula seeds were higher in seed orchards than plantations and plantation than seed orchards respectively
Avicennia alba, an Additional Potential Carbon Sequester in Mangrove Ecosystems
Full text linkMangrove forests have exceptional carbon sequestration capacity for mitigating climate change impacts. Increased atmospheric CO2 can accelerate crops growth, improves water-use efficiency, and disrupt soil-plant balance. The performance of Avicennia alba in terms of morphometrics and biomass under environmental stresses such as elevated CO2 was poorly understood. Thus, this study aims to determine the growth response and survivability of A. alba by examining height, leaf number, and growth rate under elevated CO2 from the early stages of development. A number of 120 seed samples of A. alba was divided into two groups; 60 germinated seeds placed in a CO2 incubator and 60 in a shade house as control. The growth rate, plant height, leaf number, and mortality were compared between the two groups and statistical analyses were conducted. Increased concentrations of CO₂ enhance the development and survival of seedlings by promoting greater photosynthesis and more effective water use. The decrease in leaf production is most likely due to a shift in resource allocation, where plants prioritize the accumulation of total biomass over leaf formation. An understanding of this trade-off elucidates the potential response of plants to increasing CO₂ levels in climate change scenarios