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Characteristics and community perception on mitigation of Human-Tapanuli Orangutans conflict around Dolok Sipirok natural Reserve, South Tapanuli 2

Characteristics and community perception on mitigation of Hu...

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2nd International Conference on natural resources and Technology, ICONART 2020

作者： Kuswanda, W. Harahap, R.H. Alikodra, H.S. Sibarani, R. Post-Graduate in Program of Environmental and Natural Resources Management Universitas Sumatera Utara Medan Indonesia Faculty of Social and Political Science University of Sumatera Utara Medan Indonesia Faculty of Forestry Bogor Agricultural University Bogor Indonesia Faculty of Cultural Science University of Sumatera Utara Medan Indonesia Environmental and Forestry Research and Development Institute of Aek Nauli Simalungun Indonesia

The frequency of human-tapanuli orangutan (Pongo tapanuliensis) conflict has been increased with the widespread on degradation and fragmentation at Batangtoru Forest, South Tapanuli Regency. Orangutans often come on community lands to look for food, especially while the durian fruit season. This study aims to obtain information on socio-economic characteristics and public perception index to mitigate on human-tapanuli orangutan conflict around the Dolok Sipirok Nature Reserve, South Tapanuli Regency. Data was collected using a questionnaire distribution, interviews and descriptive observations, starting from October 2019 to January 2020. Respondents were selected by purposively sampling method, i.e. people had met and interacted with orangutans as many as 61 respondents from three villages. Data analyzed using frequency tables, likers scale and spearman rank correlation. The results showed that the community is Muslim majority, productive age, education below senior high school, farmers and income below IDR. 4,000,000. The public perception has declared orangutans as animals that consume community plants. They will drive away the orangutans found in processed land. The perception of conflict mitigation has strongly agreed with the program that must be done including providing compensation for losses, increasing patrol programs, developing local wisdom and building corridors in state forests. The characteristics were a significant (a © Published under licence by IOP Publishing Ltd.

关键词： Digital storage

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How different spatial resolutions of digital models affects the geospatial distribution evaluation of the Index of Connectivity

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Journal of South American Earth Sciences 2025年 163卷

作者： Eberval Marchioro Geraldo André Rosseto Barreto Ialy Gomes Ferreira Adelsom Soares Filho Diogo Costa Buarque Department of Geography (DGEO) Graduate Program in Geography (PPGG) Federal University of Espírito Santo/Brazil (UFES) Coordinator of the Laboratory for Monitoring and Modeling Environmental Systems (Lamosa) Brazil Graduate Program in Management and Regulation of Water Resources (ProfÁgua/UFES) Brazil Graduate Program in Geography at UFES Brazil Graduate Program in Civil Engineering at UFV Brazil Department of Geography Graduate Program in Geography Federal University of Grande Dourados (UFGD) Brazil Department of Environmental Engineering Graduate Program in Environmental Engineering (PPGEA) Professional Master's in Water Resources Management and Regulation (ProfÁgua/UFES) Federal University of Espírito Santo/Brazil (UFES) Brazil

Digital Terrain Models (DTM) and Digital Elevation Models (DEM) are important for obtaining the Index of Connectivity, as they provide valuable information to assess the possibility of sediments reaching the riverbed in watershed basins. This is crucial for proactive management, as it allows the adoption of preventive and mitigating measures. Therefore, this study aims to analyze the effect of the spatial resolution of DEMs with resolutions of 5 m and 2 m, and between the DTM and DEM at 2 m, in determining the Index of Connectivity (IC). Additionally, it was investigated whether it is possible to use only one spatial resolution of digital models to assess the geospatial distribution of IC for all hydrogeomorphological landscapes of the Duas Bocas River watershed, located in the Metropolitan Region of Greater Vitória, in the state of Espírito Santo, Southeast Brazil. For this study, the Borselli Index of Connectivity model (et al., 2008) was used, originally developed for rural areas of Italy and widely applied in different regions worldwide. The data used, including Digital Elevation and Terrain Models and land use and cover information, were obtained from the Integrated Geospatial Base System of the State of Espírito Santo (Brazil), which is publicly *** results indicate that a better geospatial representation of IC occurs when changing the spatial resolution of DEMs from a 5 m pixel to a 2 m pixel and when using the 2 m DTM instead of the 2 m DEM. When analyzing the relationship between IC and the hydrogeomorphological landscapes in the basin, it was observed that, in the absence of models with an even finer pixel resolution, the 2 m DTM is the most suitable option, as it presented IC values consistent within and between landscapes in the Escalated Terraces of Southern Espírito Santo, Coastal Hills and Massifs, and Coastal Plateaus sectors. The exception was the fluvio-lagoon plain, which requires an even finer pixel resolution, necessitating further st

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Application of edible films from fermented Opuntia cochenillifera mucilage in the preservation of minimally processed fruits

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Food Chemistry 2025年 488卷 144849页

作者： Monteiro, Shênia Santos dos Anjos, Antônia Isabelly Monteiro de Sousa, Anna Clara Batista da Silva, Mikaelly Batista Monteiro, Shirley Santos Moreira, Emmanuel Pereira Almeida, Renata Duarte de Bittencourt Pasquali, Matheus Augusto Federal University of Campina Grande Graduate Program in Engineering and Natural Resources Management Campina Grande58429-900 Brazil Federal University of Campina Grande Graduate Program in Food Engineering Campina Grande58429-900 Brazil Department of Agronomy Federal University of Paraiba Areia58397-000 Brazil Federal University of Paraiba Bananeiras58220-000 Brazil

This study evaluated a coating based on Opuntia cochenillifera mucilage fermented with Lactobacillus gasseri and starch (MOCF-S) to extend the shelf life of minimally processed melons under refrigeration. The films were characterized according to thickness, solubility, water vapor permeability, optical properties, morphology, Fourier transform infrared spectroscopy (FTIR), and thermal and mechanical properties. The MOCF-S film showed high solubility (96.43 %), greater water vapor permeability (6.13 g/kPa h m2), and a smooth and uniform surface, suggesting compatibility between fermented mucilage and starch. It also demonstrated greater tensile strength and the presence of amide I bands in FTIR, indicating structural interactions. Antimicrobial activity was detected in the contact area against Escherichia coli (6.7 to 7.3 mm) and Staphylococcus aureus (6.7 to 7.7 mm). After 12 days at 5 °C, the coated fruits maintained better titratable acidity and antioxidant compounds compared to the control, demonstrating the potential of the MOCF-S film in postharvest conservation. © 2025 Elsevier Ltd

关键词： Fourier transform infrared spectroscopy

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Comparison of Taylor Galerkin and FTCS models for dam-break simulation 5

Comparison of Taylor Galerkin and FTCS models for dam-break ...

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5th International Seminar on Sustainable Urban Development, ISoSUD 2020

作者： Hafiyyan, Q. Adityawan, M.B. Harlan, D. Natakusumah, D.K. Magdalena, I. Graduate School of Civil Engineering Bandung Institute of Technology Jawa Barat Bandung Indonesia Center for Coastal and Marine Development Bandung Institute of Technology Jawa Barat Bandung Indonesia Study Program of Water Resouces Engineering and Management Bandung Institute of Technology Jawa Barat Bandung Indonesia Study Program of Water Resources Engineering Bandung Institute of Technology Jawa Barat Bandung Indonesia Industrial and Financial Mathematics Research Group Bandung Institute of Technology Jawa Barat Bandung Indonesia

The aim of this paper is to compare the ability of two numerical models to simulate two-dimensional dam-break flows. Dam-break modelling is important in reducing the high-risk of dam failure by determining the water flow movement and its effect on buildings downstream. In this study, the Taylor Galerkin and Forward Time Central Space method is presented to simulate 2-D dam-break flow. The Hansen filter is applied to both methods to reduce numerical instability oscillations in the model. The filters were used for each time step at each computing point. The model is verified by comparing the result simulation with numerical results from previous studies. The result show that Taylor Galerkin numerical scheme with Hansen filter is successful to simulate the problem of 2-D dam-break. Also, the Taylor Galerkin model has better results than the FTCS model. Studies like this are needed for mitigation efforts in the event of dam failure. © Published under licence by IOP Publishing Ltd.

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Sustainability of Multilayer Plastics Waste management in Indonesia: A Multi-Aspect Sustainability Analysis (Msa) Approach

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SSRN 2024年

作者： Anwar, Mayrianti Annisa Sasongko, Nugroho Adi Najib, Mukhamad Pranoto, Bono Firmansyah, Irman Suprihatin Prof BJ Habibie Complex Area Banten15314 Indonesia Natural Resources and Environmental Management Graduate Study Program IPB University Jl. Pajajaran IPB Baranangsiang Campus Bogor16144 Indonesia Kampus IPB Darmaga P.O. Box 220 Bogor Indonesia IPSC Sentul Area West Java16810 Indonesia Faculty of Economics and Management Jl. Agatis Kampus IPB Darmaga West Java Bogor16680 Indonesia Research Center for Limnology and Water Resources National Research and Innovation Agency Bogor Indonesia System Dynamics Centre Indonesian System Dynamics Experts Association Indonesia

The sustainability of multilayer plastics waste management in Indonesia is a critical concern, demanding a comprehensive approach. This study employs a Multi-Aspect Sustainability Analysis (MSA) to evaluate and improve the management of multilayer plastic waste. The environmental strategies include developing standards for environmentally friendly technologies, regular monitoring, and in-depth academic studies on waste utilization. Economically, consistent funding, industry-government collaboration, community involvement, and investment policy development are essential. Social strategies emphasize community engagement and capacity building for waste management. Governmental roles involve implementing data-driven plans, enhancing law enforcement, establishing independent organizations, and incentivizing participation. Technological advancements and standardization in recycling technologies are crucial. The study highlights the importance of integrated efforts across environmental, economic, social, and governmental aspects to achieve sustainable waste management, promoting environmental resilience, economic prosperity, and social well-being. The results obtained showed that the sustainability status of waste management of multilayer plastic in Indonesia, special in Surabaya City is sustainable with an index of 53.33%. To increase the sustainability status to be very sustainable, scenario 2 was selected, the optimistic scenario with improvements in 14 sensitive factors to increase the sustainability index to 78.37%. © 2024, The Authors. All rights reserved.

关键词： Sustainable development

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Community-centric importance and performance evaluation of Human-Orangutan Conflict management in Aceh, Indonesia

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Trees, Forests and People 2024年 15卷

作者： Suhardono, Sapta Fitria, Laili Septiariva, Iva Yenis Sari, Mega Mutiara Ulhasanah, Nova Prayogo, Wisnu Arifianingsih, Nur Novilina Buana, Dwinto Martri Aji Suryawan, I Wayan Koko Environmental Sciences Study Program Faculty of Mathematics and Natural Sciences Universitas Sebelas Maret Surakarta 57126 Indonesia Department of Environmental Engineering Faculty of Engineering Universitas Tanjungpura Pontianak 78124 Indonesia Civil Engineering Study Program Faculty of Engineering Universitas Sebelas Maret Jl. Ir Sutami No.36 Surakarta 57126 Indonesia Department of Environmental Engineering Faculty of Infrastructure Planning Universitas Pertamina Jakarta 12220 Indonesia Department of Building Engineering Education Faculty of Engineering Universitas Negeri Medan Medan 20221 Indonesia Department of Environmental Engineering Faculty of Civil and Environmental Engineering Institut Teknologi Bandung Bandung 40116 Indonesia Department of Management Universitas Widyatama Bandung 40125 Indonesia Department of Natural Resources and Environmental Studies College of Environmental Studies and Oceanography National Dong Hwa University Hualien 97401 Taiwan

This study presents an Importance-Performance Analysis (IPA) to evaluate the management strategies for Human-Orangutan Conflict (HOC) in Aceh, Indonesia. Utilizing an IPA Grid, the research categorizes various management strategies into four quadrants, each reflecting different levels of community-perceived importance and performance. Strategies like “Orangutan-Safe Fences” and “Community-Based natural Resource management (CBNRM) for Orangutans” in Quadrant A are both important and performing well, underscoring the effectiveness of current efforts in these areas. Significantly, “Traditional Measures for Orangutan Deterrence,” which include non-harmful, traditional methods such as the use of specific noise deterrents, physical barriers, and community-led patrols to discourage orangutans from entering human areas, alongside “Quick Response program for Orangutan Incidents,” are placed in Quadrant B. In Quadrant C, “Strengthen Law Enforcement and Conservation Policies” are deemed less crucial and underperforming, suggesting a lower priority for immediate resource allocation. Lastly, Quadrant D includes well-performing but less critical strategies like “Early Warning Systems for Orangutan Presence” and “Raise Local Awareness About Orangutans,” pointing to potential over-investment. The study's findings advocate for a strategic reallocation of resources and highlight the importance of aligning conservation efforts with community priorities for effective and sustainable HOC management. © 2024 The Author(s)

关键词： Aceh Community-based conservation Human-Orangutan Conflict Importance-performance analysis Wildlife management

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16-Hydroxybriaranes from the octocoral Briareum stechei

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Phytochemistry Letters 2023年第1期57卷 92-95页

作者： Liu, Chia-Jung Wang, Chien-Chiao Chang, Chun-Feng Zhang, Mingzi M. Tsou, Lun Kelvin Wen, Zhi-Hong Hwang, Tsong-Long Chen, You-Ying Sung, Ping-Jyun Department of Marine Biotechnology and Resources National Sun Yat-sen University Kaohsiung 804201 Taiwan National Museum of Marine Biology and Aquarium Pingtung 944401 Taiwan Graduate Institute of Natural Products College of Medicine Chang Gung University Taoyuan 333323 Taiwan Graduate Institute of Biomedical Sciences College of Medicine Chang Gung University Taoyuan 333323 Taiwan Division of Urology Department of Surgery Kaohsiung Armed Forces General Hospital Kaohsiung 802301 Taiwan Institute of Molecular and Genomic Medicine National Health Research Institutes Miaoli Zhunan 350401 Taiwan Institute of Biotechnology and Pharmaceutical Research National Health Research Institutes Miaoli Zhunan 350401 Taiwan Department of Anesthesiology Chang Gung Memorial Hospital Taoyuan 333008 Taiwan Research Center for Chinese Herbal Medicine Graduate Institute of Healthy Industry Technology College of Human Ecology Chang Gung University of Science and Technology Taoyuan 333324 Taiwan Department of Chemical Engineering Ming Chi University of Technology New Taipei 243303 Taiwan Chinese Medicine Research and Development Center China Medical University Hospital Taichung 404394 Taiwan Graduate Institute of Natural Products Kaohsiung Medical University Kaohsiung 807378 Taiwan Ph.D. Program in Pharmaceutical Biotechnology Fu Jen Catholic University New Taipei City 242062 Taiwan

Two new 16-hydroxybriaranes, 11-dehydroxybriavioid B (1) and 12-epi-briastecholide L (2), have been isolated from an algal-containing octocoral identified as Briareum stechei. The structures of metabolites 1 and 2 were corroborated by extensive 2D-NMR studies and comparison with literature data. Briarane 2 was found to reduce the release of inducible nitric oxide synthase (iNOS) to 87.92 %, at a concentration of 10 μM. © 2023 Phytochemical Society of Europe

关键词： Briarane Briareum stechei Briastecholide Briavioid iNOS

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Effectiveness of Predicting Event-Level Interception Losses Across Diverse Vegetated Sites Using Statistical Models

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Ecohydrology 2025年第3期18卷

作者： Abigail G. Sandquist Stephen P. Good Gabriel Barinas Scott T. Allen Graduate Program of Hydrologic Sciences University of Nevada Reno Reno Nevada USA Department of Natural Resources and Environmental Science University of Nevada Reno Reno Nevada USA Water Resources Graduate Program Oregon State University Corvallis Oregon USA Biological & Ecological Engineering Department Oregon State University Corvallis Oregon USA

Understanding evaporation from wet canopies across ecosystems is challenged by its spatiotemporal variability and associated observational challenges. Precipitation and throughfall were measured at 22 sites of the National Ecological Observatory Network using consistent methodologies across diverse climates and ecosystems, providing a novel opportunity to examine the performance of statistical models in predicting interception loss from meteorological and canopy-structure data. We used those data to quantify event-level interception losses and found wide variation; median interception loss of small storms (< 10 mm) was 37.7% (39% inter-quartile range), and of large storms (> 50 mm) was 19.8% (20% interquartile range). We found storm gross-precipitation depth was the most important variable for predicting the amount of interception loss (predicting ~70% of the variation), followed by mean canopy height and air temperature. Storm gross-precipitation depth was also an important predictor of interception loss as a percent of storm depth, but much less variation was explained ( R 2 = 0.11, RMSE = 24%). Prediction of percent interception loss improved ( R 2 = 0.32 and RMSE = 19%) by including additional meteorological and vegetation structure characteristics in a random forest model. In addition to demonstrating the greater importance of storm traits over vegetation traits in predicting event interception losses, this analysis showed that relationships between storm traits and interception losses differed among sites; these inconsistent relationships across sites limited the ability for any statistical model to perform well in predicting event-level interception losses across sites, which may justify the use of alternative approaches (e.g. process-based models).

关键词： rainfall partitioning remote sensing throughfall vegetation structure

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Multi-Site Assessment of Soil Nitrogen Storage Across Temperate Forests Under Varying Thinning Intensities, Recovery Times, and Site Conditions

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SSRN 2023年

作者： Kim, Seongjun Kim, Choonsig Lee, Sang-Tae Son, Yowhan Center for Endangered Species National Institute of Ecology Gyeongbuk Province Yeongyang36531 Korea Republic of Institute of Life Science and Natural Resources Korea University Seoul02841 Korea Republic of Department of Forest Resources Gyeongsang National University Jinju52725 Korea Republic of Forest Technology and Management Research Center National Institute of Forest Science Pocheon11186 Korea Republic of Department of Environmental Science and Ecological Engineering Graduate School Korea University Seoul02841 Korea Republic of

Thinning is common and effective practice for managing forests worldwide, impacting soil nitrogen (N). Nonetheless, uncertainties remain because thinning experiments have recorded either increased, decreased, or unchanged soil N storage. This study investigated soil N storage across 13 temperate forests, each of which received three thinning intensities (unthinned control and 15–50% basal area removal) under varying pre-treatment conditions (altitude, slope, soil pH, soil moisture, stand age, stand density, diameter at breast height, and tree height). The total N stored in the forest floor and mineral soils (0–10, 10–20, and 20–30 cm) was determined 1, 4, and 7 years after thinning. Given the various site conditions and thinning regimes, a standardized effect size was used to analyze the influences of thinning. The N storage (Mg N ha-1) of the forest floor and at 0–10, 10–20, and 20–30 cm mineral soil depths was 0.02–0.46, 0.32–3.21, 0.29–3.03, and 0.25–2.54 across the 13 forests, respectively. The standardized effect sizes indicated a general decrease in forest floor N storage and increase in mineral soil N storage under thinning. However, the effect sizes varied because of differing site conditions, even more than thinning intensity and recovery time. Soil pH and stand age were the most influential factors for the effect sizes of forest floor and mineral soil N storage, respectively (P © 2023, The Authors. All rights reserved.

关键词： Forestry

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Assessment of catchment water resources allocation under climate change in Luwombwa sub-catchment, Zambia

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Heliyon 2024年第21期10卷 e39962页

作者： Mwelwa, Dickson Mwaanga, Phenny Nguvulu, Alick Tena, Tewodros M. Taye, Gebeyehu School of Graduate Studies Copperbelt University P.O. Box 21692 Kitwe Zambia Department of Environmental Engineering School of Mines and Mineral Sciences Copperbelt University P.O. Box 21692 Kitwe Zambia Department of Geomatics Engineering School of Mines and Mineral Sciences Copperbelt University P.O. Box 21692 Kitwe Zambia Federal Institute for Geosciences and Natural Resources (BGR) Lusaka Zambia Department of Land Resources Management and Environmental Protection Mekelle University P.O.Box 231 Mekelle Ethiopia

The uncertainty in climate change and high water demand pose pressure on the natural water resources supply. Not only does this require better understanding but also a call for immediate interventions, mitigation and adaptive measures. This study evaluates catchment water resources in the Luwombwa sub-catchment in Zambia through statistical analysis in the downscaling of past, present and future climatic variables from the CMIP6 climatic model. These variables are then integrated into WEAP - a semi-distributed hydrological and water evaluation model - to perform water demand and allocation scenario modelling. Mult-site calibration and validation were conducted on five selected micro-catchments within Luwombwa sub-catchment. The model performance was assessed usng the R², NSE and PBIAS as the objective functions. Satisfactory values of 92 % for R², 82 % for NSE and 6.9 % for PBIAS were achieved. This allowed for scenario modelling on water demand and allocation among competing users. Three future scenarios (2022–2050) were developed from the historical to baseline (1988–2022) and included state of water resources availability under climate change, expansion of irrigation area and impact of dam construction in the sub-catchment. The study reveals a decrease of 20 % in sub-catchment's water availability resulting from 9.3 % (equivalent to 4^oC) rise in maximum temperature and 4.5 % reduction in rainfall within the entire sub-catchment. This is especially under the persistence of SSP370 climate variability scenario projections downscaled from four GCM models by the year 2050. The study further revealed that the change point for anticipated future climate extremes is likely to occur between 2027 and 2030. The results are indicative of downward trends in streamflow under climate change and socioeconomic development leading to increase in water value and water scarcity. The insights from the study are critical to inform formulation of effect

关键词： Climate change SSP370 scenario Water demand Water resources allocation

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