Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management)
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Disaster Mitigation Strategies Based on Risk Matrix and House of Risk (HoR) Phase 2
Get PDFWonogiri Regency, located in Indonesia, is an area susceptible to various types of natural disasters, such as floods, landslides, and hurricanes, which pose a significant risk to approximately 90% in this area. Therefore, this study aimed to identify the types of potential disasters in Wonogiri and propose effective strategies for disaster mitigation from 2021 to 2025. This study uses a risk matrix to quantify the risks associated with these potential disasters and utilizes House of Risk (HoR) phase 2 methodology to formulate strategies for disaster risk prevention. This comprehensive analysis has shown seven potential disasters for which nine mitigation strategies have been developed. Among these, the top three strategies, considering the effectiveness value and the degree of difficulty (EDRk) value, in order of priority, are “Increasing multi-stakeholder partnerships in disaster management” (EDRk value 176.20); “Strengthening the legal framework for disaster management” (EDRk value 167.40); and “Conducting socialization and education on disaster mitigation” (EDRk value 111.60). Implementing these strategies is expected to strengthen disaster risk reduction (DRR) in regencies, with a focus on prioritizing the most effective measures. 
Calculation of Carbon Emissions and Sequestration to Support the Net Zero Emission Target of Central Java Province (Case Study: Cilacap and Brebes Regencies)
Get PDFIndonesia\u27s net zero emission target is being achieved through greenhouse gas (GHG) inventories using the Intergovernmental Panel on Climate Change (IPCC) method. This study aims to determine the potential contribution of the Brebes and Cilacap Regencies using the net zero target of Central Java Province in terms of carbon sequestration in various types of land cover. Land-cover data were collected from the RBI. Land cover use data were then multiplied by the constant value of carbon stocks to determine the potencies of carbon sequestration and storage. The potential contribution of carbon sequestration in Brebes Regency reaches 3,882,850.81 tons of CO2 eq or 4.60%, while Cilacap Regency has almost two times the potential for carbon sequestration in Brebes, which is 7,191,181.44 tons of CO2 eq, or equivalent to 8.52% of the total carbon emissions of Central Java Province which reached 84,435,352.5 tons of CO2 eq. This difference in carbon sequestration potential was most influenced by the presence of mangrove and terrestrial forests, with the highest value of carbon stock constants compared to other land uses. Overall, these two regencies canabsorb almost 1/3 of the carbon emissions in Central Java Province; therefore, they can be prioritized in efforts to increase carbon sequestration at the provincial level
Microplastic Abundance in The Waters of The Middle Section of The Citarum River, Karawang, West Java
Get PDFMicroplastics in the Central Citarum River, Karawang, West Java, originate from anthropogenic activities of people living around the watershed, which is an industrial, agricultural, and densely populated residential area. Microplastics are degraded plastics < 5 mm in size. This study aims to determine the abundance and size of microplastics in the Middle Citarum River, through observation with a microscope. Sampling was conducted at three locations with three observations: February, March, and April 2022. The types of microplastics found were pellets, films, fibers, and fragments. Microplastic particle size < 0.3 mm was the most common size found. The abundance of microplastics in the water of the Middle section of the Citarum River is different at each sampling location. The total number of microplastic particles in all research locations was 4,413 particles. The highest abundance of microplastics in all sampling locations was in densely populated residential areas at 239.7 ± 326.7 particles/m3 , followed by agricultural areas with an abundance of 72.5 ± 63.8 particles/m3 , then the lowest abundance was in industrial areas at 55.6 ± 57.8 particles/m3. The average abundance of microplastics in the middle Citarum River water was 122.6 ± 209.7 particles/m3. Statistical analysis using Kruskall Wallis with a df value of 2 > 0.05 showed no significant difference in microplastic abundance at each research location. All stations had the same potential for microplastic pollution. This study shows that high anthropogenic activities lead to high microplastic pollution in water. Therefore, proper mitigation and management of waste and plastic waste are needed
The Movement to Maintain Food Security Through Technological Advancements and Local Diversification: Ministry of Agriculture Republic of Indonesia
Get PDFThis study aims to determine the food security movement using a qualitative descriptive research method assisted by NVivo 12 Plus software from the Twitter account data source of the Ministry of Agriculture Republic of Indonesia, supported by previous research. Data coding was obtained from Twitter, social media, and news data, which supported the findings using a crosstab query feature. The analysis found that the government\u27s strategy for maintaining food security was to increase production capacity, diversify local food, strengthen food reserves and logistics systems, and develop modern agriculture. They increased food production by intensifying 85,456 hectares of swamp land and maximizing 85,456 hectares of land. Diversifying local food by massively utilizing local food as an alternative food supply and strengthening food reserves and logistics systems by supporting food reserves that can be used to help other areas affected by disasters as a form of social care, and developing modern agriculture with Smart Farming Developing technology-based clever farming methods, including Agri Drone Sprayer liquid, Surveillance Drones (drones for land mapping), Soil and Weather Sensors, as well as the development of food safety applied to households. Scale with vertical hydroponic growing system training. 
Keefektivan Bio-enzim Asal Limbah Buah dan Campuran Limbah Buah dengan Rumen Ayam Sebagai Aktivator Pengkomposan
No full textBio-enzim dapat dihasilkan dari proses fermentasi libah buah. Bio-enzim tersebut dapat bekerja sebagai aktivator pengkomposan bahan organic. Dalam penelitian ini, activator pengkomposan asal limbah buah, limbah buah yang ditambah dengan rumen ayam dan Effective Microorganism-4 (EM-4) dibandingkan dan dievaluasi keefektivannya untuk produksi kompos. Hasil penelitian menunjukkan bahwa puncak suhu dari ketiga activator tersebut terjadi pada hari ke 3 dan bervariasi antara 55-57oC. Suhu menurun pada hari ke 14 dengan suhu yang sama 33oC, yang menunjukkan bahwa kompos telah mencapai tingkat kematangannya pada waktu yang sama.. Berdasarkan hasil analisis statistic, perbedaan penggunaan ketiga activator pengkomposan dijumpai pada C-organik dan kadar air kompos. Walaupun demikian, kompos yang dihasilkan berdasarkan Keputusan Menteri Pertanian Republik Indonesia No. 261/KPTS/SR.310/6.M/4/ 2019 dan SNI 19-7030-2004 kompos yang dihasilkan sama baiknya dan memenuhi standar yang ditentukan. Dengan demikian dapat disimpulkan bahwa activator pengkomposan terbuat dari limbah buah, baik yang tanpa maupun yang ditambahkan dengan rumen ayam sama efektifnya dengan aktivator pengkomposan EM-4.The fermentation of fruit waste can produce bio-enzymes. These bio-enzymes may act as composting activators for composting organic materials. This study compared composting activators made from fruit waste, fruit waste enriched with chicken intestinal content, and Effective Microorganism-4 (EM-4) to evaluate their effectiveness for compost production. It was found that the peaks of temperatures of all activators applied were achieved within 3 days, varied between 55–57°C, and dropped to the lowest point on day 14 at a temperature of 33°C, indicating that the maturity of the compost fell in the same period. Based on statistical analysis, differences among the three activators were found in the C-organic and moisture content of the compost. However, the compost produced using the three activators, based on the quality standard determined by the Decree of Agriculture Minister of Republic Indonesia No. 261/KPTS/SR.310/6.M/4/2019 and SNI 19-7030-2004 were comparable and met these requirements. In conclusion, composting activators made from fruit waste and fruit waste enriched with chicken intestinal content might be used as composting activators for compost production as effective as composting activator EM-4
Analysis of landcover changes and carrying capacity of coastal cities North Java of Central Java Province, Indonesia
Get PDFNorth Coastal Central Java has been a strategic zone from the colonial era to the present because it supports the national socio-economic sector. Urbanization has threatened the development of districts/cities on the northern coast of Central Java. The physiographical conditions of coastal districts/cities along Pantura are formed from alluvial plains, making the environment\u27s carrying capacity more vulnerable to changes in global conditions and pressures from the socio-economic activities of the population. This study aims to identify changes in land cover, its relationship to road infrastructure development, and its implications for environmental carrying capacity. The method used in this study uses GIS to determine changes in land cover and settlement growth patterns and calculates biocapacity and ecological footprint to obtain environmental carrying capacity conditions. The results show that land cover changes mainly occur in agricultural land, plantations, and settlements. In addition, the environment\u27s carrying capacity experienced a deficit/overshoot in 2010, which continued until 2020. The result indicates the problem in the environmental dimension of sustainable development of coastal cities and requires serious intervention to increase environmental quality
Leachate Treatment Using Sub-Surface Flow Constructed Wetland by Hippochaetes lymenalis
Get PDFLeachate, which comes from waste landfills, contains high levels of organic and inorganic matter. Constructed Wetland technology is a suitable alternative for leachate treatment. This technology is easy to apply, relatively cost-effective, and can achieve optimal reduction results for treating and controlling leachate, thereby reducing its environmental impact. The objective of this study was to treat the BOD concentration and COD in leachate using a Constructed Wetland. Data collection was performed by conducting leachate experiments for Constructed Wetland treatment using Hippochaetes lymenalis plants based on variations in residence time and media height. There was a control group (R1) without any media or plants. The variation combination included R2 (containing 10 cm gravel and 10 cm fertile soil) and R3 (containing 5 cm gravel and 15 cm fertile soil). Residence times were set at 0, 7, 14, and 21 d. This research showed that the reactor with growth media consisting of 10 cm gravel and 10 cm fertile soil had 55% and 85% BOD and COD removal efficiencies, with final BOD concentrations and COD values of 273 mg/L and 1,321, respectively. The reactor with growth media consisting of 5 cm gravel and 10 cm fertile soil had 74% and 95% BOD and COD removal efficiency, with the final BOD concentration and COD at 159 mg/L and 432, respectively
A Comparative Study of Social-Ecological Characteristics of Land-based and Island-based Small-Scale Fisheries in Southeast Sulawesi Province
Get PDFSmall-scale fisheries exhibit unique, diverse, and varied characteristics in each region. These distinctive traits render small-scale fisheries challenging to regulate centrally. This research aims to compare the characteristics of land-based and island-based small-scale fisheries in Southeast Sulawesi Province. Data were collected through structured interviews involving 445 respondents from two distinct areas: North Konawe, representing land-based fisheries, and Konawe Islands, representing island-based fisheries. Both qualitative (questionnaire data) and quantitative analyses were conducted using R software. Proportion data were tested using the R ggstatsplot package, while word cloud analysis utilized the R wordcloud package. The analysis of fishing ground distribution hotspots was performed using QGIS software version 3.30. The research findings demonstrate differences across various aspects, including education levels, boat sizes, fishing frequency, monthly income, and types of captured fish. Furthermore, the study highlights that island-based small-scale fisheries hold a higher income potential compared to their landbased counterparts. These differing characteristics serve as essential considerations in developing policies that support sustainable management of small-scale fisheries based on the needs of local communities
Nature-Based Solutions in Urban Landscapes: Determinants Influencing Willingness to Participate in Composting in Metropolitan Jakarta, Indonesia
Get PDFAmidst the rapid urbanization of Jakarta, the adoption of Nature-based Solutions (NbS) like composting offers a sustainable pathway for waste management and environmental rejuvenation. This research endeavors to discern the critical factors impacting the willingness of Jakarta\u27s metropolitan populace to participate in composting activities. The study identified key determinants through a comprehensive analysis, including the availability of composting facilities, the expertise of trained cadres, the adoption of advanced composting technologies, and routine field monitoring. Furthermore, demographic nuances, specifically marital status, and age, surfaced as influential parameters. Singles and the younger age bracket (20-29 years) exhibited distinct attitudes towards composting, hinting at underlying generational and lifestyle-based disparities. The findings provide a foundation for tailoring policies and interventions that cater to Jakarta\u27s unique urban fabric, promoting a more inclusive and influential composting culture
Potential Floristic Analysis of Peat Swamp Village Forest in Jambi Province to Supports Village Ecotourism Programme
Get PDFHutan Desa Pematang Rahim merupakan salah satu skema perhutanan sosial yang ditawarkan oleh pemerintah. Balai Pengelolaan Hutan Desa Pematang Rahim menjadikan ekowisata sebagai dasar pengelolaannya. Ekowisata di ekosistem gambut di hutan desa menjadikan keanekaragaman hayati di dalamnya, terutama tumbuhan, sebagai dasar ekowisata terencana. Tujuan dari penelitian ini adalah untuk mendapatkan data dan informasi tentang potensi flora dalam mendukung pengelolaan hutan desa berbasis ekowisata. Penelitian ini dilaksanakan selama 8 bulan mulai Maret hingga Oktober 2021 dengan lokasi di Hutan Desa Pematang Rahim Kabupaten Tanjung Jabung Timur dan analisis lebih lanjut di Herbarium dan Laboratorium Manajemen, Jurusan Kehutanan Fakultas Pertanian Universitas Jambi. Hasil penelitian di lapangan menunjukkan bahwa hutan gambut yang dikelola sebagai hutan desa di Pematang rahim secara umum dalam kondisi baik. Ada berbagai jenis pohon dan tanaman lain dalam berbagai bentuk kehidupan. Hasil penelitian ditemukan 26 famili, 58 marga dan 104 spesies dengan total 2.831 individu yang terdiri dari 855 anakan, 880 anakan, 546 tiang dan 550 pohon. Indeks keanekaragaman menunjukkan nilai yang tinggi (>3) untuk setiap tahap pertumbuhan dari semai sampai pohon (3,39; 3,56; 3,65; 3,79). Keberadaan berbagai jenis spesifik gambut dengan kondisi ekosistem yang masih terjaga diharapkan dapat menjadi nilai tambah dalam kegiatan ekowisata di kawasan Hutan Desa Pematang Rahim di masa mendatang.Pematang Rahim Village Forest is one of the social forestry schemes offered by the government. Pematang Rahim Village Forest Management Institute makes ecotourism as the basis for its management. Ecotourism in peat ecosystems in village forests creates biodiversity inside, especially plants, as the basis for planned ecotourism. The purpose of this research is to obtain data and information about the potential flora to support ecotourism-based village forest management. This study was carried out for 8 months from March to October 2021, located in the Village Forest of Pematang Rahim, East Tanjung Jabung Regency, and further analysis was conducted at the Herbarium and Laboratory of Management, Department of Forestry, Faculty of Agriculture, Jambi University. Research results in the field show that peat forests are generally managed as village forests in Pematang rahim in good condition. There are various types of trees and plants in differentlife forms. The study found 26 families, 58 genera, and 104 species, with a total of 2,831 individuals consisting of 855 seedlings, 880 saplings, 546 poles, and 550 trees. The diversity index showed a high value (> 3) for each growth stage from seedlings, sapling, pole to trees (3.39; 3.56; 3.65; 3.79). The existence of various peat-specific species with ecosystem conditions that are still maintained is expected to add value to ecotourism activities in the Pematang Rahim Village Forest area in the future