Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management)
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Evaluation of Floods Susceptibility Models Based on Different Pairwise Parameters in the Analytical Hierarchy Process: Case Study Cilemer and Ciliman Watersheds
Full text linkPenelitian ini menginvestigasi kerentanan banjir di daerah aliran Ciliman dan Cilemer, Provinsi Banten, dengan menggunakan pendekatan multi-kriteria parameter dengan fokus pada Analytical Hierarchy Process (AHP). Dua skenario dengan proritas parameter yang berbeda dibandingkan: skenario satu perbandingan parameter berpasangan berdasarkan penilaian ahli (skenario-1) dan yang lainnya berasal dari sejarah kejadian banjir di daerah dengan kerentanan tinggi dan sangat tinggi (skenario-2). Tujuh parameter digunakan, yaitu elevasi/ketinggian permukaan, kemiringan tanah, curah hujan, geologi, jenis tanah, penggunaan lahan, dan jarak ke sungai. Hasilnya menunjukkan pembobotan parameter-parameter di kedua skenario berbeda secara substansial. Penelitian ini juga memvalidasi model kerentanan banjir dengan membandingkannya dengan sejarah kejadian banjir. Skenario-2 menunjukkan kesesuaian lebih baik terhadap titik-titik sejarah kejadian banjir, terutama di daerah kerentanan sangat tinggi, dibandingkan skenario-1. Parameter elevasi dan kemiringan tanah diidentifikasi sebagai faktor-faktor penting yang memengaruhi kerentanan banjir, dengan elevasi rendah dan kemiringan yang landai meningkatkan kerentanan, sedangkan kemiringan yang lebih tinggi mengurangi kerentanan terhadap banjir.This study investigated flood vulnerability in the Ciliman and Cilemer Watersheds, situated in Banten Province, and employs a spatial multi-criteria-integrated approach, with a specific focus on the Analytical Hierarchy Process (AHP). Two distinct scenarios, which have different parameter priority, were compared: one based on expert judgment for pairwise parameter comparisons (scenario-1) and the other derived from historical flood occurrences in high and very high vulnerability areas (scenario-2). Seven parameters, including elevation, slope, precipitation, geologic, soil type, land use, and distance to streams were weighted substantially different between the two scenarios. The study validated the flood vulnerability scenarios by contrasting them with historical flood data. Scenario-2 exhibited a closer agreement with the historical flood points during validation, particularly in very high vulnerability areas. Elevation and slope are identified as pivotal factors influencing flood vulnerability: low elevations and gentle slopes increased vulnerability, while higher slopes decreased flood susceptibility
Pipe Flow Simulation Model on Shrimp Hatching Infrastructure (Hatchery) Through Recirculating Aquaculture System (RAS) Approach
Full text linkThe shrimp nursery infrastructure consists of nursery tanks, mechanical filters, biological filters, and ultraviolet (UV) filters. This study aimed to simulate the water level elevation (head) of shrimp nursery infrastructure, especially nursery tanks. The placement of the nursery greatly affects the elevation of the water table owing to the loss of energy (headloss) that occurs in the flow. The nursery tub used in this study was round and consisted of four tubs made of fiber resin measuring 250 cm in diameter and 120 cm in height. The bottom of the tub was placed at an elevation of +40 cm above the ground. The simulation was conducted for 24 hours. The results of the EPANET 2.2 simulation showed head fluctuations in each nursery with the highest elevation (1.38 m and the lowest (1.20 m, from the data. The head fluctuated constantly after 6 h of the flow. The optimal pipe diameters were 3" (80 mm) PVC and 4" (110 mm) PVC. 
Analysis of Factors Influencing Community Participation in Sustainable Forest Management in BKPH Mojorayung, Madiun
Full text linkThe success of sustainable forest management is inseparable from community participation as the leading actor in the Social Forestry Program. Various factors, including internal factors from the community and external factors, affect the participation of the community. Factors impacting community participation in sustainable forest management were analyzed in this study. The study was conducted at BKPH Mojorayung, KPH Madiun, East Java Regional Division Perum Perhutani, from April to June 2022, using a survey method with 242 randomly selected respondents. Partial Least Squares (PLS) analysis was conducted with the SmartPLS software. Based on the results, it was found that three factors impact the community\u27s participation in forest management: the empowerment process accuracy, the role of community empowerment workers, and the support of group leaders. The characteristics of the communities around the forest did not affect community participation in forest management. Community participation also affects the sustainability of forests
Dynamic Modelling Analysis on The Effectiveness of Coastal Land Resources for Aquaculture Activities Utilization
Full text linkCoastal areas are considered biodiversity zones. This study aimed to analyze the effectiveness of land use on aquaculture productivity rate in coastal areas using a dynamic modeling analysis system. This study was conducted in the Pekalongan Province. Water quality parameters and qualitative research data were obtained from an in-depth survey. Furthermore, the data were analyzed using dynamic modeling analysis. The results of this study indicate that the level of coastal land use has a variable relationship with the productivity rate of aquaculture. Based on the causal loop model, it could be analyzed that the social, environmental conditions in coastal areas were described as continuing to experience quantification of population increase and environmental utilization rates. Overall, the productivity level of aquaculture cultivation in coastal areas tended to decrease along with the increasing value of productive land use accompanied by increased inputs and the number of human resource populations in coastal areas. The optimal inclusion of this study was that the optimal land use level would impact the productivity management level of aquaculture cultivation in coastal areas. Based on the results of this study, it can be concluded that the optimal utilization of coastal land greatly impacted the management of the productivity level of aquaculture cultivation, which was carried out in an integrated manner. Furthermore, the analysis of the dynamic modeling system also illustrated the increasing social-environmental conditions in coastal land utilization
Food diversity of the Tapanuli Orangutan (Pongo tapanuliensis) in the Tapanuli Orangutan Research Station Plan, North Sumatra, Indonesia
Full text linkThe Tapanuli orangutan (Pongo tapanuliensis) is found only in the Tapanuli area. This species includes protected and endangered animals and has a very limited distribution. An important component of animal management is feed availability. This study aims to assess the diversity of food in the Tapanuli orangutan at the Tapanuli Research Station Plan, Batu Satail, Sipirok District. Research was carried out in November 2021 by conducting a vegetation analysis on 3 predetermined paths. The results showed that in this area, there were 91 plant species from 42 families, of which 29 species (31.87%) were orangutan food. However, the highest plant importance index value is dominated by nonfood plants. 
Community-led Initiatives for Water Resource Management in Sumenep Regency, Indonesia
Full text linkKelangkaan air adalah masalah global yang dapat mempengaruhi kesehatan dan kesejahteraan manusia serta lingkungan. Partisipasi masyarakat diakui sebagai aspek penting dalam pengelolaan sumberdaya air, khususnya dalam upaya mengatasi kelangkaan air. Di Indonesia, Jawa Timur merupakan salah satu provinsi yang sering mengalami kekurangan air. Penelitian ini bertujuan untuk mengeksplorasi bagaimana masyarakat lokal berpartisipasi dalam pengelolaan sumberdaya air dan memanfaatkan pengetahuan lokal mereka untuk mengatasi kerentanan krisis air bersih di Desa Parsanga, Sumenep, Jawa Timur. Penelitian ini menggunakan pendekatan kualitatif dan menggunakan wawancara, observasi dan analisis dokumen sebagai metode pengumpulan data. Hasil penelitian menemukan bahwa inisiatif masyarakat lokal ditunjukkan dalam partisipasi untuk pembangunan sumur bor. Partisipasi ini diwadahi dalam organisasi yang dibentuk oleh masyarakat lokal di Desa Parsanga sendiri yaitu HIPPAM (Himpunan Masyarakat Pengguna Air Minum). HIPPAM telah membangun lima sumur bor yang dapat menyuplai air bersih kepada kurang lebih 500 rumah tangga. Inisiatif ini menunjukkan bahwa masyarakat lokal memiliki peran strategis dalam pengelolaan sumberdaya air dan dapat mendorong praktik-praktik keberlanjutan. Penelitian ini memberikan wawasan mengenai potensi masyarakat dan pengetahuan lokal dalam mengatasi permasalahan air global.Water scarcity is a global issue affecting human health, well-being, and the environment. Community participation is vital to managing water resources, particularly in addressing water scarcity. In Indonesia, East Java is one of the provinces that frequently experiences water shortages. This research explores how local communities manage water resources and utilize local knowledge to address the vulnerability to clean water crises in Desa Parsanga, Sumenep, and East Java. This study employed a qualitative approach using interviews, observations, and document analysis as data collection methods. The research findings revealed that the local community\u27s initiative is demonstrated through their participation in the construction of drilled wells. This participation is facilitated through an organization formed by the local community in Desa Parsanga called the Association of Drinking Water Users (HIPPAM). HIPPAM constructed five drilled wells that supply clean water to approximately 500 households. This initiative demonstrates that the local communityplays a strategic role in water resource management and can promote sustainable practices. This research provides insights into the potential of communities and local knowledge in addressing global water issues
Hydrological Modeling in the Capluk Watershed, Rembang Regency for Evaluation of Spatial Patterns
Full text linkRembang Regency has little annual rainfall, ranging from 1,000 to 2,000 mm. The Capluk Watershed in Rembang is the only one with a discharge station. The average rainfall of the watershed in 2011 to 2020 is relatively low (1,877 mm/year). Moors are the dominant land use in the watershed, so the watershed is prone to drought. This study aims to assess the water balance and land use planning to reduce water deficits. The FJ Mock modeling method is used to understand hydrological phenomena, where the results can help manage water resources by regulating land use by utilizing the exposed surface parameters in the model. The results show that the demand for water in the watershed for the 2011 to 2020 period reaches an average of 49,151,012 m3/year, while the availability of water is 132,512,172 m3/year. This condition shows that the total water balance experiences an average surplus of 83,361,160 m3/year but experiences a deficit in the dry season, an average of 3,452,278 m3/year. For land use planning, scenario 5 (a combination of regionalspatial plan maps, forest area maps, general plan for forest and land rehabilitation maps, and land use in 2020) is the best in reducing the water deficit by 20,383,274 m3 or can lower the water deficit to 4,957,173 m3
Analysis of NDVI and Plant Vegetation Diversity in the Traditional Zone, Mount Halimun Salak National Park, Bogor
Full text linkZona tradisional Taman Nasional Gunung Halimun Salak (TNGHS) merupakan zona yang sangat dimanfaatkan oleh masyarakat setempat untuk memenuhi kebutuhan sehari-hari dengan memanfaatkan sumber daya hutan bukan kayu dan menerapkan sistem agroforestri dengan komoditas utama poh-pohan (Pilea melastomoides). Pemantauan hutan di zona tradisional TNGHS sangat penting dilakukan sebagai bagian dari pengelolaan hutan lestari dan realisasi dukungan program Forestry And Other Land Use (FOLU) Net Sink Indonesia 2030. Penelitian ini bertujuan menganalisis kerapatan vegetasi berdasarkan nilai NDVI; menganalisis tingkat keanekaragaman jenis tumbuhan dan struktur tegakan di zona tradisional TNGHS. Selanjutnya dilakukan pendataan keanekaragaman jenis tumbuhan di kawasan tersebut berdasarkan nilai NDVI kerapatan vegetasi. Nilai NDVI diperoleh menjadi tiga kelas yang memiliki kondisi lahan yang berbeda. Nilai kelas 1 berkisar antara 0,147 sampai 0,273 memiliki kerapatan vegetasi yang rendah. Kelas 2 dari 0,273 sampai 0,319 memiliki kerapatan vegetasi sedang. Sedangkan kelas 3 memiliki kerapatan vegetasi tinggi dengan nilai 0,319 hingga 0,433. Keanekaragaman jenis tumbuhan memiliki 60 jenis yang berbeda dari total tiga kelas. Kerapatan semai lebih rendah dari pancang, namun pada tingkat tiang dan pohon semakin menurun yang menandakan struktur tegakan seimbang. Tingkat semai yang rendah disebabkan oleh terhalangnya pertumbuhan semai akibat pembersihan yang dilakukan oleh masyarakat setempat untuk persiapan penanaman tumbuhan bawah karena masyarakat lebih memilih menanam tumbuhan bawah yang lebih cepat panen dibandingkan semai tumbuhan berkayu.Mount Halimun Salak National Park (MHSNP) traditional zone is a zone which is highly utilized by the local community to fulfill their daily needs by utilizing non-timber forest resources and implementing an agroforestry system with the main commodity is poh-pohan (Pilea melastomoides). Forest monitoring in the MHSNP traditional zone is very important to do as part of sustainable forest management and the realization of supporting Indonesia\u27s Forestry And Other Land Use (FOLU) Net Sink 2030 program. This study aims to analyze the density of vegetation based on NDVI values; besides, analyze the level of plant species diversity and stand structure in the traditional zone of MHSNP. Furthermore, the data collection of plant species diversity at the area based on NDVI value of vegetation density. NDVI values are obtained into three classes that have different land conditions. The class 1 value range from 0.147 to 0.273 has a low vegetation density. Class 2 from 0.273 to 0.319 has medium vegetation density. Meanwhile, class 3 has high vegetation density with a value of 0.319 to 0.433. Diversity of plant species has 60 different species from a total of three classes. The density of seedlings is lower than saplings and at the level of poles, trees is decreasing that is indicates a balanced stand structure. The low seedling level is caused by inhibition of seedling growth due to cleaning by the local community in preparation for planting understory since the community prefers to plant understory which harvest faster woody plant seedling
Improving Waste Management Sustainability: The Role of Institutional Capacity and Program Objectives
Full text linkThis research aims to analyze 1) waste management in terms of the institutional capacity aspect involved in waste management, and 2) analyze the objectives of the waste management program to overcome problems that occur in the sustainability of waste management. A qualitative approach was used by conducting a Focus Group Discussion with seven selected respondents and then analyzed using a quantitative approach using Interpretive Structural Modeling. The results show that the key factor from the relevant agencies, or the most crucial in determining the sustainability of waste management in Kambu District, Kendari City, is the Kendari City Cleanliness and Parks Service, which is assisted by government involvement in Kendari City. Therefore, waste management requires good institutional synergy to ensure the sustainability of waste managementby conducting activities based on program objectives in the environmental cleanliness improvement program as the key factor. This can increase community involvement by reducing the volume of waste, utilizing waste recycling, and reusing waste, which can increase people\u27s incomes. Another important element to ensure sustainable waste management is the improvement and maintenance of waste management facilities and infrastructure. 
Carbon Sequestration in the Green Open Spaces along Primary Road of Pontianak City, West Kalimantan, Indonesia`
Full text linkGlobal climate change caused by greenhouse gas (GHG) emissions is currently a focus for various countries worldwide, including Indonesia. Carbon dioxide (CO2) is the main source of emissions, with a significant portion originating in urban areas. This is due to the high levels of air pollution from motor vehicles and rapid industrial growth. Urban green spaces are areas within cities that consist of non-built-up spaces filled with naturally grown or cultivated vegetation. These green spaces exist directly alongside the transportation infrastructure, which helps reduce air pollution, especially CO2, through the vegetation that makes up these areas. One type of urban green space is a green corridor, which forms elongated paths or areas. This study assessed the carbon sequestration of 17 primary road networks in Pontianak City using three allometric models. Plot positions for data collection were determined using purposive sampling, with each side accounting for 5% of the total zigzag plots. This research focused on vegetation at different growth stages, such as saplings, poles, and trees. The results were estimated at 256.86 tons ha-1 (Hardiansyah and Ridwan formula), 269.96 tons ha-1 (Chave formula), and 193 tons ha-1 (Brown formula)