Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management)
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Development Strategy of Non-Timber Forest Product Multi-Business Forestry In Social Forestry Partnership
Get PDFAbstrak: Luas hutan Indonesia semakin berkurang setiap tahunnya dan tingginya tekanan dari masyarakat menyebabkan akses masyarakat terhadap hutan semakin masif, sehingga perlu adanya solusi untuk mengatasi permasalahan tenurial dan kesejahteraan masyarakat. Salah satu kebijakan yang ditawarkan sebagai solusi adalah perhutanan sosial dengan sistem multiusaha kehutanan. Penelitian ini bertujuan untuk merumuskan strategi pengembangan pemanfaatan HHBK dengan multiusaha. Analisis dilakukan dengan menggunakan kombinasi metode SWOT dan AHP untuk merumuskan strategi pengembangan yang terbaik. Berdasarkan hasil penelitian yang dilakukan, strategi terbaik untuk mengembangkan multiusaha pemanfaatan HHBK adalah strategi yang berorientasi pada pertumbuhan yang berfokus pada strategi SO, yaitu: meningkatkan jumlah kombinasi jenis, diversifikasi usaha, memanfaatkan peran KPH dan pemerintah daerah untuk mendukung diversifikasi pemanfaatan HHBK, terlibat aktif dalam berbagi informasi yang dilakukan baik kepada sesama anggota maupun kepada pihak luar, melakukan promosi produk atau komoditi untuk memperluas pasar dan menarik minat investor, serta pemberdayaan melalui kelembagaan masyarakat dengan pendampingan dan pelatihan. Strategi tersebut diharapkan dapat meningkatkan kualitas hutan dan kesejahteraan masyarakat sehingga fungsi utama hutan tetap terjaga namun tetap memberikan manfaat bagi masyarakat.Indonesia’s forest area is decreasing every year, and the high pressure from the community has caused massive public access to forests, so there is a need for solutions to overcome tenure problems and community welfare. The policies offered as a solution is social forestry with a multibusiness forestry system. The research aims are to formulate multi-business NTFP utilization development strategies. The analysis used the SWOT and AHP combination methods to formulate the best possible development strategy. Based on the research conducted, the best strategy for developing multi-business NTFPs utilization is a growth-oriented strategy that focuses on SO strategy, as follows: increasing the number of species combinations, business diversification, taking advantage of FMUs and local government\u27s role in supporting the diversification of NTFPs utilization, actively involved in sharing information which is carried out both to fellow members and outside parties, promotion of products or commodities to expanding the market and attracting investors,and empowerment through community institutions with assistance and training. The strategies are expected to improve the quality of the forest and community welfare so that the main functions of the forest are maintained but still provide benefits to the community
Analysis of MEP Work Waste Management Efforts in Building Construction Projects in Jakarta Greater Area
Get PDFProyek konstruksi merupakan salah satu sektor yang berkembang pesat di Indonesia dan berdampak pada lingkungan dari limbah konstruksi yang dihasilkan. Tujuan dari penelitian ini adalah menganalisis jenis dan jumlah limbah konstruksi terbanyak yang dihasilkan, mengevaluasi nilai ekonomi, nilai jual limbah dan biaya pembuangan limbah konstruksi. Penelitian ini menggunakan metode deskriptif kuantitatif. Hasil penelitian menunjukkan bahwa jenis limbah konstruksi yang dihasilkan berdasarkan jenisnya, sebagian besar terdiri dari beberapa jenis kabel berbahan dasar tembaga, pipa baja dan plastik, serta saluran polyurethane (PU). Limbah konstruksi terbanyak berasal dari proyek perkantoran yaitu kabel NYA 2×1,5 mm2 (216.515 m). Nilai waste level tertinggi berasal dari proyek perkantoran, kondotel, dan pabrik yang berasal dari beberapa jenis kabel dengan nilai > 94%. Nilai waste cost tertinggi berasal dari proyek kondotel saluran PU (Rp 5.727.267.000,00). Limbah logam yang dihasilkan dijual oleh kontraktor kepada pengepul untuk didaur ulang. Limbah bukan logam dibuang dengan membayar kontraktor sipil yang mengangkut limbah tersebut. Kebijakan pengelolaan limbah konstruksi perlu diterapkan untuk mengurangi jumlah dan dampak limbah konstruksi yang dihasilkan.Construction projects are among the sectors that are growing rapidly in Indonesia and have an impact on the environment from the resulting construction waste. The purpose of this study is to analyze the highest type and quantity of construction waste generated from Mechanical Electrical Plumbing (MEP) work from the difference in the amount of material from the BOQ with the amount attached to the as-built drawings, evaluate the economic value by calculating the ratio of the amount of waste generated to the amount of material at BOQ (waste level) × the scope of work percentage (waste cost), selling value of waste (the quantity of waste × the local selling price), and costs of disposal of construction waste based on the agreement of each project management. This study uses a descriptive quantitative method. The results showed that most of the construction waste generated was based on its type, consisting of copper-based cables, steel and plastic pipes, and polyurethane ducts. The highest quantity of construction waste came from the office project, which was 2 × 1.5 mm2 NYA cables (216,515 m). The highest waste level value came from office, condotel, and factory projects using several types of cables (> 94%). The highest waste cost value came fromthe condotel project is polyurethane duct (IDR 5,727,267,000.00). The metal waste produced is sold by contractors to collectors for recycling. Non-metal waste is disposed by paying a civil contractor. Construction waste management policies must be implemented to reduce the amount and impact of construction waste generated. 
Modeling Landslide Hazard Using Machine Learning: A Case Study of Bogor, Indonesia
Get PDFLandslides occur in many parts of the world. Well-known drivers, such as geological activities, are often enhanced by violent precipitation in tropical regions, creating complex multi-hazard phenomena that complicate mitigation strategies. This research investigated the utility of spatial data, especially the digital elevation model of SRTM and Landsat 8 remotely sensed data, for the estimation of landslide distribution using a machine learning approach. Bogor Regency was chosen to demonstrate the approach considering its vast hilly/mountainous terrain and high rainfall. This study aimed to model landslide hazards in Sukajaya District using random forests and analyze the key variables contributing to the isolation of highly probable landslides. The initial model, using the default settings of random forest, demonstrated a notable accuracy of 93%, with an accuracy ranging from 91 to 94%. The three main predictors of landslides are rainfall, elevation, and slope inclination. Landslides were found to occur primarily in areas with high rainfall (2,668–3,228 mm),elevations of 500 to 1,500 m, and steep slopes (25–45%). Approximately 4,536 ha were potentially prone to landslides, while the remaining area (> 12,000 ha) appeared relatively sound
Microsatellite Identification Based on Genome Assembly Reveals Potentials Marker of Macassar Ebony (Diospyros celebica Bakh.)
Get PDFMacassar ebony (Diospyros celebica Bakh.) is an endemic tree species native to Sulawesi. To date, there are limited comprehensive publications regarding its genome assembly. In this study, we employed paired-end libraries of HiSeq 4000 Illumina, generating 141.2 million paired-end reads (42.4 Gigabases). Our analysis revealed the presence of 950,081 Scaffolds, with an N50 value of 6,023. Notably, BUSCO analysis identified 183 (12.7%) complete and single-copy BUSCOs (S), as well as 9 (0.6%) complete and duplicated BUSCOs (D). Furthermore, we identified 12,890 microsatellites within the Macassar Ebony genome. These microsatellites encompass 14 dinucleotide SSR motifs, 12,090 trinucleotide SSRs, 780 tetranucleotide SSR motifs, and 6 pentanucleotide SSRs. This dataset represents a valuable resource for assessing Macassar Ebony genetic makeup in its natural habitats and for subsequent analyses of the Macassar Ebony genome
Analysis of Antimony Removal with Modified Activated Carbon Using Response Surface Methodology
Get PDFAntimon (Sb) adalah senyawa logam yang dapat menyebabkan masalah kesehatan ketika terakumulasi di dalam rantai makanan dan bersifat toksik bagi ekosistem. Kegiatan industri telah memicu kontaminasi antimon di dalam air, termasuk air permukaan. Beberapa instalasi pengolahan air minum menggunakan air permukaan sebagai air baku untuk diolah. Sebuah teknologi yang murah dan mudah diperlukan negara berkembang seperti Indonesia.Oleh karenanya, studi terhadap modifikasi karbon aktif dengan manganese(II) sulfate dan iron(II) sulfate dilakukan untuk menghasilkan adsorben yang lebih baik. Variabel indepent dari penelitian ini terdiri atas jenis adsorben (GAC, GACFM, dan GACMF), pH, dan dosis. Analisa data dilakukan dengan response surface methodelogy untuk mengetahui kondisi optimum dari tiap jenis adsorben. Hasil eksperimen menunjukkan kondisi optimum untuk adsorben GAC terjadi pada pH 3 dan dosis 0,009 g/L. Sedangkan, modified GACMF memiliki kondisi optimum pada pH 7 dan dosis 0,057 g/L; dan GACFM pada pH 5 dan dosis 0,057 g/L. GACMF merupakan jenis adsorben yang lebih direkomendasikan untuk penerapan pada instalasi pengolahan air minum karena memiliki efektivitas removal pada pH optimum yang netral.Antimony (Sb) is a metal compound that can cause health problems when it accumulates in the food chain and becomes toxic to the ecosystem. Industrial activities have driven Sb contamination of water, including surface water. At the same time, some drinking water treatment plants (DWTP) use surface water as raw water, which requires adequate treatment. An invention of cheap and accessible technology is needed for developing countries such as Indonesia; hence, this study presents research on modified activated carbon with iron sulfate and manganese sulfate to create a better adsorbent from commercial granular activated carbon (GAC). The independent variables in this study included the type of adsorbent (GAC and GACMF), acidity level, and dosage. Response surface methodology was implemented for the analysis. According to the study, it was found that the optimum state of non-modified GAC for Sb removal appears at pH 3 and a dosage of 0.03 g L-1. In contrast, the presence of modified GAC was more effective for Sb removal with an optimum pH of 6 and a dosage of 0.057 g L-1 for GACMF. This research suggests that GACMF is preferable for DWTP because the optimization shows that GACMF is optimized in a neutral state; therefore, additional chemicals are unnecessary to achieve a neutral acidity state
Analysis of Carrying Capacity and Willingness to Pay Conservation Costs for Tourists in the Ciletuh-Palabuhanratu Geopark Area
No full textMeningkatnya jumlah wisatawan ke kawasan Geopark Ciletuh-Palabuhanratu (GCP) pasca diresmikan sebagai bagian dari UNESCO Global Geopark berpotensi menimbulkan kerusakan lingkungan, situs geologi, dan kondisi keanekaragaman hayati di kawasan tersebut. Oleh karena itu, perlu dilakukan antisipasi dengan membatasi pengunjung sesuai daya dukung melalui konservasi kawasan. Penelitian ini bertujuan untuk menganalisis daya dukung Curug Cimarinjung dan Puncak Darma dengan metode Douglass dan kemauan membayar (WTP) biaya konservasi dengan menggunakan Contingent Valuation Method (CVM). Responden penelitian sebanyak 150 wisatawan dan beberapa pengelola wisata. Kawasan Curug Cimarinjung mampu menampung sebanyak 184 orang/hari, dan kawasan Puncak Darma sebanyak 118 orang/hari. Pada tingkat daya dukung tersebut, wisatawan dapat melakukan aktivitas wisata dengan santai dan nyaman. Hasil penelitian menunjukkan jumlah wisatawan baik di Curug Cimarinjung maupun di Puncak Darma sudah melebihi daya dukung kawasan. Wisatawan yang bersedia membayar biaya konservasi sebanyak 78% dari total responden dengan mekanisme pembayaran satu kali melalui tiket masuk. Alasan responden tidak bersedia membayar biaya konservasi adalah karena responden menganggap ini tanggung jawab pemerintah 39,39%, takut uangnya disalahgunakan 27,27%, tanggung jawab pengelola wisata 24,24% dan pihak yang tidak peduli 9,09%. Nilai WTP dana konservasi sebesar Rp. 7.867 untuk Curug Cimarinjung dan Rp. 5.000 untuk Puncak Darma.This study aimed to analyze the carrying capacity of Curug Cimarinjung and Puncak Darma using the Douglass method and the willingness to pay for conservation fees using the Contingent Valuation Method Respondents to the research were 150 tourists and several tourism managers. Curug Cimarinjung can accommodate as many as 184 people day-1 , and the Puncak Darma as many as 118 people day-1. Tourists who were willing to pay for conservation fees comprised 78% of the total respondents with a one-time payment mechanism through an entrance ticket. In total of 39.39% of respondents were not willing to pay as they believed that it was the responsibility of the government. The conservation costs were IDR 10,000 for Curug Cimarinjung and IDR 5,000 for Puncak Darma. The difference in conservation costs was because the attractiveness of the attractions in the two tourist spots varied, thus affecting the number of tourists and the nominal amount that tourists were willing to pay. If the tariff was adjusted according to the average Willingness to Pay, an entry fee at Cimarinjung Waterfall would have been charged, which was initially IDR 5,000 person-1, would have been IDR 15,000 person-1, while at Puncak Darma it would have been IDR 3,000 person-1 to IDR 8,000 person-1 . Determining ticket prices that had been adjusted to the average Willingness to Pay could control the number of visits so that they did not exceed capacity and did not disturb biodiversity conservation. In such conditions, tourists could carry out tourist activities comfortably and safely
Pollution and the abundance of plankton in Rangkui River in Bangka Island
No full textLand use and activity around the Rangkui Watershed affect water quality, and plankton have been studied to help manage the river\u27s water quality. In the 2017 dry season, six station points representing land use functions from upstream to downstream were studied. Surface water sampling was carried out during the day with three replicates. Pollution around the Rangkui Watershed affected plankton abundance. Based on saprobity and physicochemical readings, the pollution level ranged from light upstream to heavy downstream. This study found 15 species from 15 families from six phytoplankton classes, that is, Bacillariophyceae, Chlorophyceae, Euglenophyceae, Cyanophyceae, Cryptophyceae, Dinophyceae, and 2 species of zooplankton Eurotatoria, and Branchiopoda. The highest total abundance of phytoplankton and zooplankton was observed upstream of Station 1 (721 ind/L) and gradually decreased downstream, with the exception of the absence of plankton at Station 3. Nitrate had a positive correlation with phytoplankton at different correlation levels, whereas other abiotic environments responded differently to phytoplankton and zooplankton. The water quality is highest upstream, where there are pepper plantations, and gradually decreases as it flows downstream. The station near tin mining activities was the most polluted
Prediction and Simulation for Land Use and Land Cover Change of Paddy Field Influence by Salinization in Coastal Demak Regency
Get PDFLuas lahan pertanian sawah di pesisir rentan terhadap perubahan penggunaan lahan dan tutupan lahan (LULC) menjadi penggunaan non-pertanian akibat degradasi lahan, salah satunya disebabkan oleh salinitas. Studi ini bertujuan untuk mendeteksi dan memproyeksikan perubahan LULC hingga tahun 2031, terutama di daerah sawah pesisir yang terkena salinitas, dengan membandingkan LULC pada tahun 2017, 2019, dan 2021. Citra Sentinel-2 digunakan untuk klasifikasi LULC, dengan rekaman yang dipilih selama fase generatif pertumbuhan padi untuk memperoleh area sawah yang paling optimal. Terdapat enam klasifikasi LULC: air, lahan basah, area vegetasi, dan area terbangun. Untuk memahami dampak salinitas pada tanaman, beberapa indeks vegetasi (VIs) seperti NDVI, SAVI, EVI, dan ARVI digunakan. Perubahan LULC yang diklasifikasikan menurut VIs dibandingkan dengan plugin MOLUSCE berdasarkan jaringan saraf tiruan-perceptron multilapis (ANN-MLP) dan Automata Seluler (CA). Perbandingan hasil VIs menunjukkan bahwa NDVI lebih baik dalam menggambarkan perubahan LULC akibat pengaruh salinitas, dengan nilai kappa sebesar 0.63 dan Correctness sebesar 72.565. Proyeksi LULC menggunakan CA dalam semua VIs menunjukkan bahwa area lahan basah lebih cenderung berubah menjadi badan air, yang menunjukkan bahwa lahan dengan salinitas tinggi cenderung tidak produktif untuk sawah, sehingga rentan terhadap konversi.
The extent of coastal rice paddy agricultural land is vulnerable to land use and land cover (LULC) changes to non-agricultural uses due to land degradation, one of which is caused by salinity. This study aims to detect and project LULC changes up to 2031, particularly in coastal rice paddy areas affected by salinity, by comparing LULC in 2017, 2019, and 2021. Sentinel-2 Imagery is used for LULC classification, with recordings selected during the generative phase of rice growth to obtain the most optimal rice paddy area. There are six LULC classifications: water, wetland, low-medium-high vegetation cover, and built-up area. To understand the impact of salinity on crops, several vegetation indices (VIs) such as NDVI, SAVI, EVI, and ARVI are used. The LULC changes classified according to VIs are compared with the MOLUSCE plugin based on artificial neural networkmultilayer perceptron (ANN-MLP) and Cellular Automata (CA). The comparison of VIs results shows that NDVI is better at describing LULC changes due to the influence of salinity, with a kappa value of 0.63 and a Correctness of 72.565. The LULC projection using CA in all VIs indicates that wetland areas are more likely to convert into water bodies, suggesting that high salinity land tends to be unproductive for rice paddies, making it prone to conversion. 
The effect of altitude on the butterfly diversity in the Gunung Gede Pangrango National Park, West Java, Indonesia
Get PDFAltitude is one of the factors that decrease butterfly diversity due to the different types of habitats. Gunung Gede Pangrango National Park is one of the places at different altitudes, such as Situgunung Resort. This study aimed to investigate butterfly species\u27 diversity, richness, and evenness at three altitude levels. This study was completed in October 2019 at altitudes 750, 850, and 950 meters above sea level (masl). Butterfly inventory (diversity) data were collected using the transect method, and data on habitat characteristics were acquired through direct observation. The richness, diversity, evenness, and community similarity of butterfly species and the biotic and abiotic habitat characteristics were then analyzed. The result showed 51 butterfly species at Situgunung Resort, Gunung Gede Pangrango National Park. The highest diversity index and richness index were found at an altitude of 750 masl (3.22 and 7.91) and the lowest at 950 masl (2.46 and 3.98). The highest evenness index was found at 750 masl, while the highest similarity community index was found at altitudes 750 and 850 masl. The relation between altitude and butterfly diversity is that the higherthe altitude, the lower the butterfly diversity.Altitude is one of the factors that decrease butterfly diversity due to the different types of habitats. Gunung Gede Pangrango National Park is one of the places at different altitudes, such as Situgunung Resort. This study aimed to investigate butterfly species\u27 diversity, richness, and evenness at three altitude levels. This study was completed in October 2019 at altitudes 750, 850, and 950 meters above sea level (masl). Butterfly inventory (diversity) data were collected using the transect method, and data on habitat characteristics were acquired through direct observation. The richness, diversity, evenness, and community similarity of butterfly species and the biotic and abiotic habitat characteristics were then analyzed. The result showed 51 butterfly species at Situgunung Resort, Gunung Gede Pangrango National Park. The highest diversity index and richness index were found at an altitude of 750 masl (3.22 and 7.91) and the lowest at 950 masl (2.46 and 3.98). The highest evenness index was found at 750 masl, while the highest similarity community index was found at altitudes 750 and 850 masl. The relation between altitude and butterfly diversity is that the higherthe altitude, the lower the butterfly diversity
Behavioral Intention of Domestic Organic Waste Segregation in Urban Communities (Case Study: Sukmajaya and Cilodong Districts, Depok City)
No full textWaste management is a significant and widespread issue that challenges many countries, particularly developing countries. Organic waste is a primary contributor to greenhouse gas (GHG) emissions in waste management, making it a crucial problem to address. Proper waste management practices, including decentralized organic waste management, are necessary to address this issue. However, this decentralization requires the support of the community’s waste segregation behavior. Therefore, this study was conducted in Sukmajaya and Cilodong Districts to analyze the intention of organic waste sorting behavior utilizing Theory of Planned Behavior (TPB) analysis. The results showed that only two constructs, attitude and perceived behavioral control, positively impacted the intention to sort organic waste. In this study, norm construction does not serve as a supporting construction for the waste sorting intention. Additionally, knowledge of waste sorting programs and activities significantly affects perceived behavioral control.