Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management)
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Forest Fire Dynamics Over a Decade in Mappi District, South Papua: Hotspot Trends and Burned Areas Estimation Using MODIS Data
Full text linkForest and land fires have become an annual occurrence in South Papua Province over the past decade, with Mappi District identified as a fire-prone hotspot. This study analyzes hotspot trends and dynamics from 2012 to 2021 and estimates burned areas using Terra/Aqua Moderate Resolution Imaging Spectroradiometer (MODIS)satellite data and ArcMap 10.8. The highest number of hotspots was recorded in 2015 (3,879), with 36.5% occurring on peatland and 63.5% on mineral soils. A historical hotspot analysis pinpoints the prevalence of fire incidents between July and October, highlighting the necessity for intensified prevention measures before July. Furthermore, a significant linear regression is established between annual hotspot numbers and rainfall in Mappi District (p-value = 0.006), signifying the impact of climatic factors on fire occurrences. The largest burned area, estimated at 134,051.74 hectares, also occurred in 2015, coinciding with a strong El Niño event. More importantly, these fires occurred not only on mineral soil but also on peatland areas. Hence, this study highlights the critical need to prioritize comprehensive forest and land fire management in Mappi District, South Papua Province. 
Efektivitas Teratai (Nelumbo nucifera G.) dengan Berbagai Media Tanam untuk Fitoremediasi Air Asam Tambang
No full textAcid mine drainage (AMD), characterized by high acidity and concentrations of heavy metals that can damage aquatic ecosystems, poses a serious environmental problem. This research aimed to analyze the effectiveness of Nelumbo nucifera Geartn. grown using a Floating Wetland System (FTW), treated with topsoil or bokashi, in altering pH and reducing heavy metals in coal mine AMD. The experiment was conducted for 14 days in a sedimentation pond of post-mining land at PT Bukit Asam, Palembang, Indonesia. Two FWS units were installed on the pond’s surface: one was enriched with topsoil, while the other was with bokashi. Fifteen N. nucifera plants were grown in each floating reactor, with plants grown directly in the AMD without the FWS used as the control group. Plantgrowth, media pH, and heavy metal contents were monitored during and after treatment. The results indicate that the system was capable of increasing the initial highly acidic AMD pH (pH 2.8) to a range close to neutral (6.5–6.9). The concentrations of Fe and Mn metals were significantly reduced through the absorption mechanism of roots, stems, and leaves, with an efficiency of more than 90%. XRD analysis also revealed the formation of secondary mineral phases that support vegetative growth in both reactors. These findings confirm that the FWS installed with the bokashi ameliorant and N. nucifera has great potential as a sustainable solution for acid mine drainage remediation. Penelitian ini bertujuan untuk menguji efisiensi teratai (Nelumbo nucifera G.) sebagai agen fitoremediasi untuk mengendalikan logam berat di air asam tambang (AMD). Eksperimen dilakukan dengan menggunakan teknik lahan basah terapung dengan dua jenis media tanam, khususnya bokashi dan tanah lapisan atas. Parameter yang diukur terdiri dari perubahan pH dan total padatan tersuspensi (TSS) dalam air, pertumbuhan tanaman, dan konsentrasi logam berat di air dan tanaman. Temuan menunjukkan bahwa N. nucifera G. yang dibudidayakan di bokashi sebagai substrat dapat meningkatkan pH air secara nyata lebih dari di tanah lapisan atas, sementara tanaman yang tumbuh di tanah lapisan atas lebih unggul dalam penyerapan Mn. Efisiensi penyerapan Fe mencapai 80,10% ketika bokashi digunakan. Analisis XRD dari struktur mineral mengungkapkan adanya senyawa yang berbeda seperti etil vanilin dan silika dalam komponen tanaman, yang dapat meningkatkan kemampuan fitoremediasi. Penelitian ini mendukung N. nucifera G. sebagai kandidat alternatif solusi fitoremediasi yang berkelanjutan dan ekonomis untuk mengatasi kontaminasi logam berat di AMD
Water Quality Degradation in the Deli River Watershed, North Sumatra: Impacts of Land Use and Pollution Sources
Full text linkDaerah Aliran Sungai Deli berperan penting dalam siklus hidrologi bagi di wilayah Medan dan sekitarnya. DAS Deli merupakan sumber air bersih untuk kota Medan. penelitian ini dilakukan dengan tujuan untuk mendeskripsikan kondisi kualitas air dan melaporkan statu mutu perairan secara spasial di DAS Deli. Waktu pengambilan sampel air Sungai Deli dilakukan pada bulan Juni-Juli tahun 2023 di Daerah Aliran Sungai Deli, Provinsi Sumatera Utara. Titik lokasi pengamatan dilakukan secara purposive sampling pada 46 titik yang berbeda secara spasial. Lokasi pengamatan tersebut mewakili bagian hilir (5 titik), tengah (16 titik), hulu (10 titik), dan termasuk anak-anak sungainya (15 titik). Penentuan status pencemaran DAS Deli menggunakan metode Indeks Pencemaran, National Sanitation Foundation-Water Quality Index (NSF-WQI), Canadian Council of Minister of The Environment (CCME), dan metode Singscore. Secara umum DAS Deli dicirikan dengan substrat pasir-kerikil dari hilir hingga hulu (Sub DAS Petane, Babura, dan Bekala) dan hanya sedikit yang bersubstrat berbatu di bagian hulu Sungai Sembahe di Sibolangit. Hal inilah yang menyebabkan DAS Deli secara umum terlihat keruh karena substrat mengalami pengadukan sehingga tingkat kekeruhan menjadi lebih tinggi. Kekeruhan di Sungai Deli mencapai 6.6 NTU hingga 78.3 NTU. Perairan yang selalu jernih hanya ditemukan pada substrat berbatu di bagian tengah sub DAS petane dan hulu sungai Sembahe. Berdasarkan hasil perhitungan dari berbagai indeks kualitas air dan metode bioindicator menunjukkan bahwa secara spasial kondisi perairan di DAS Deli bervariasi mulai dari kondisi yang buruk hingga baik/sangat baik. Kondisi sungai paling buruk terdapat pada bagian hilir di sub DAS Sei Sekambing dan Sub DAS Deli dengan status perairan yang tercemar sedang hingga buruk. Status perairan yang baik ditemukan pada bagian hulu sungai SembaheThe Deli Watershed is crucial in Medan\u27s hydrological cycle and the surrounding areas. It serves as a clean water source for Medan, but is also affected by urbanisation and industrial discharge. This study aims to assess water quality using pollution indices and spatial analysis across the Deli Watershed. Water samples were collected from the river in the watershed, North Sumatra Province, between June and July 2023. Observations were made at 46 spatial points through purposive sampling. These points represent the downstream (five points), middle (16 points), upstream (10 points), and tributaries (15 points). The pollution status of the basin was determined using the Pollution Index, the National Sanitation Foundation-Water Quality Index (NSF-WQI), the Canadian Council of Ministers of the Environment (CCME), and the SingScore Method. The spatial water pollution in the Deli Watershed varies from poor to good or excellent. The most severe river conditions are observed in the downstream parts of the Sei Sekambing and Deli sub-watersheds, characterised by moderately to poorly polluted water. Good or unpolluted river water quality was only found in 3 of 42 observation points, especially in the upper reaches of the Sembahe River and the Simai Mai River. Therefore, serious steps are needed from the government to restore and rehabilitate the Deli River Basin area, namely forest areas, plantations, and tourist areas, especially in the upper reaches of the Deli River Basin, namely in the Karo and Deli Serdang Regencies
Evaluation of Visitor Loyalty to Technology-Based Attractions for Sustainable Tourism at Taman Safari Indonesia after COVID-19
Full text linkTaman Safari Indonesia (TSI) merupakan salah satu tempat wisata dan lembaga konservasi yang terkena dampak COVID-19. TSI adalah lembaga yang berdedikasi pada konservasi ex-situ dengan penekanan pada lingkungan. Pandemi tahun 2020 menyebabkan penurunan jumlah wisatawan di TSI sebesar 53% dibandingkan dengan tahun 2019, yang berarti dana sangat dibutuhkan untuk keberlangsungan TSI. Atraksi wisata berbasis teknologi telah dikembangkan, terutama yang menggunakan aplikasi Augmented Reality (AR), sebagai upaya untuk meningkatkan kuantitas dan pengalaman pengunjung. Hal ini dikarenakan adanya kekhawatiran pihak pengelola akan isu zoonosis dan kekhawatiran wisatawan akan kesehatan mereka. Tujuan dari penelitian ini adalah untuk menguji bagaimana pengalaman wisatawan di destinasi pariwisata berbasis teknologi mempengaruhi kepuasan dan loyalitas mereka terhadap TSI. PLS-SEM adalah metodologi yang digunakan, dengan jumlah responden sebanyak 384 orang. Setelah mencoba aplikasi augmented reality pada perangkat yang diberikan, responden mengisi kuesioner yang menyertainya berdasarkan kesan mereka terhadap atraksi AR. Temuan penelitian menunjukkan bahwa pengunjung akan lebih mungkin untuk kembali ke TSI jika mereka lebih puas. Program augmented reality memungkinkan responden untuk mendapatkan pengalaman baru, belajar tentang hewan, dan merasa nyaman saat menggunakannya. Hal ini membuat mereka senang, setia, dan cenderung menggunakan AR di TSI di masa depan.Taman Safari Indonesia (TSI) is an organization dedicated to ex-situ conservation. The pandemic caused a 53% decline in visitor visits to TSI in 2020 compared to 2019, creating an urgent need for funds to ensure the institution\u27s sustainability. In response, various technology-based visitor attractions have been developed, focusing on Augmented Reality (AR) applications to enhance both the quantity and quality of visitor experiences. This study examines how visitors\u27 experiences with technology-driven attractions influence their satisfaction and loyalty to TSI. The SEM-PSL method was used to analyze data using structural equation modeling. After using the AR features, they completed a questionnaire based on their impressions of AR-based visitors\u27 attractions. The results showed that the relationship between satisfaction and loyalty was significant, with a path coefficient of 3.760, greater than the t-table value of 1.96 at a 95% confidence level, indicating statistical significance. The findings suggest that higher satisfaction levels lead to greater visitor loyalty, with satisfied visitors more likely to return to TSI, especially with the enhanced AR experience. Visitors\u27 interactions with AR features improved their overall experience and strengthened their emotional connection to the TSI, suggesting the potential for sustained engagement. These results imply that integrating advanced technologies such as AR can play a key role in fostering visitor loyalty. Future tourism strategies should integrate immersive AR experiences with ecological education and conservation efforts to promote environmental sustainability. 
Dinamika Spatiotemporal Perubahan Tutupan Lahan dan Indeks Keberlanjutan Lokal Kabupaten Cianjur, Jawa Barat
No full textRapid land cover changes, primarily driven by urbanization and deforestation, present critical sustainability challenges for rural landscapes, especially in developing regions such as Cianjur Regency, West Java. These transitions threaten ecological integrity, disrupt water resource systems, and compromise biodiversity, ultimately impacting land productivity and sustainable development goals. This research adopts an integrated spatial analysis framework to quantify land cover transitions and assess their impacts on local sustainability through a multi-dimensional Local Sustainability Index (LSI). The study evaluates economic, social, and environmental sustainability at the village level by utilizing overlay analysis, Local Indicators of Spatial Autocorrelation (LISA), and clustering techniques. Findings indicate a pronounced shift, with rice fields reduced by approximately 29,212.6 ha over a decade (2011-2021), while dry agricultural and residential lands expanded by 43,428.5 ha and 4,889.7 ha, respectively. LSI analysis reveals a decline in high-category environmental sustainability, contrasted by an increase in social and economic LSI scores. Southern development area (WP) exhibits high environmental sustainability, while northern development area (WP) has high social welfare and economic growth (Cianjur, Cipanas, dan Pacet Sub-District). Spatial clustering results highlight four distinct village typologies: urban village (Cluster One), developing village (Cluster Two), good environmental village (Cluster Three), and underdeveloped village (Cluster Four).Perubahan tutupan lahan yang cepat, terutama didorong oleh urbanisasi dan deforestasi, menghadirkan tantangan keberlanjutan yang kritis bagi lanskap pedesaan, terutama di wilayah berkembang seperti Kabupaten Cianjur, Jawa Barat. Transisi ini mengancam integritas ekologis, mengganggu sistem sumber daya air, dan mengorbankan keanekaragaman hayati, yang pada akhirnya berdampak pada produktivitas lahan dan tujuan pembangunan berkelanjutan. Penelitian ini mengadopsi kerangka kerja analisis spasial terpadu untuk mengukur transisi tutupan lahan dan menilai dampaknya terhadap keberlanjutan lokal melalui Indeks Keberlanjutan Lokal (LSI) multidimensi. Studi ini mengevaluasi keberlanjutan ekonomi, sosial, dan lingkungan di tingkat desa dengan memanfaatkan analisis overlay, Indikator Lokal Autokorelasi Spasial (LISA), dan teknik pengelompokan. Temuan menunjukkan adanya pergeseran yang nyata, dengan sawah berkurang sekitar 29.212,6 ha selama satu dekade (2011-2021), sementara lahan pertanian kering dan perumahan bertambah masing-masing sebesar 43.428,5 ha dan 4.889,7 ha. Analisis LSI menunjukkan adanya penurunan keberlanjutan lingkungan kategori tinggi, yang kontras dengan peningkatan skor LSI sosial dan ekonomi. Wilayah pengembangan selatan (WP) menunjukkan keberlanjutan lingkungan yang tinggi, sedangkan wilayah pengembangan utara (WP) memiliki kesejahteraan sosial dan pertumbuhan ekonomi yang tinggi (Kecamatan Cianjur, Cipanas, dan Pacet). Hasil pengelompokan spasial menyoroti empat tipologi desa yang berbeda: desa perkotaan (Klaster Satu), desa berkembang (Klaster Dua), desa lingkungan baik (Klaster Tiga), dan desa terbelakang (Klaster Empat)
Impact of Land Use on Oceanography Parameters and Quality of Seaweed Kappaphycus alvarezii in Coastal Waters of South Sulawesi, Indonesia
Full text linkTulisan ini memberikan informasi mengenai pengaruh penggunaan lahan di Sulawesi Selatan terhadap kandungan unsur hara nitrat dan fosfat di perairan serta kualitas rumput laut Kappaphycus alvarezii yang dipelihara di wilayah pesisir. Pengumpulan data dilakukan di tiga lokasi pantai yaitu Marang di Kabupaten Pangkajene, Sanrobone di Kabupaten Takalar dan Sajoanging di Kabupaten Wajo. Penelitian ini mengukur beban limbah nutrien dari sungai di tiga lokasi dan mengukur pengaruhnya terhadap konsentrasi nitrat dan fosfat di perairan serta klorofil-a, kandungan karagenan, kadar air dan kadar abu pada rumput laut yang dipelihara di perairan pantai. Hasil penelitian menunjukkan bahwa penggunaan lahan berhubungan dengan besarnya beban hara, pada lokasi Sajoanging yang dominan penggunaan lahan pertanian menghasilkan beban nitrat dan fosfat yang tinggi, sedangkan pada lokasi lain relatif lebih rendah. Kandungan unsur hara ini mempengaruhi kondisi oseanografi dan kualitas Kappaphycus alvarezii yang dibudidayakan This paper provides information on the influence of land use in South Sulawesi on the load of nitrate and phosphate nutrients in the water and its impact on the quality of Kappaphycus alvarezii seaweed grown in coastal areas. Data were collected at three coastal locations: Marang in Pangkajene Regency, Sanrobone in Takalar Regency, and Sajoanging in Wajo Regency, for three repetitions of nutrient loads. Oceanographic parameters were measured at nine points at each location, including temperature, salinity, pH, current waters, nitrate, phosphate, and total suspended solid (TSS). The quality of seaweed observed was chlorophyll-a, carrageenan content, water content, and ash content in seaweed reared in coastal waters. The research results show that land use is related to the amount of nutrient load; in the Sajoanging location, where agricultural land use is dominant, it produces high nitrate and phosphate loads, while in other locations, it is relatively lower. This nutrient content influences oceanographic conditions and the quality of cultivated Kappaphycus alvarezii. 
Evaluation of Hazardous and Toxic Waste Management in the Textile Industry in Karawang, West Java, Indonesia
Full text linkThe manufacturing industry in this research was a polyester-producing manufacturing industry generating polyester chips and polyester staple fiber. The production process used raw materials and ancillary materials. Every raw material that was processed would produce products and byproducts in the hazardous and toxic waste (HTW) category; in the form of Wastewater Treatment Plant sludge, diethylene glycol, residue from the laboratory test, incinerator ash, spin finish oil, bottles of chemical solutions, and contaminated rags. This research aimed to evaluate the implementation of the HTW management for the key activities based on the relevant regulations to prevent harm to human health and the environment. The implementation of the HTWs management activities was observed on site. The observations were then compared with the regulations, and their conformity was scored using a Likert Scale. The results of the evaluations, covering 5 key activities of the packaging and containment, collection, storing, transportation, and symbolling and labelling, gave the percentage of 90%, 91.70%, 96%, 100%, and 85.20%, respectively. The average conformity of the HTWs management with the regulations was 93% and included in the very good category. Improvements have still to be done by this industry to ensure their HTW management operates properly by reducing their wastes using the suitable methods, such as through raw material substitution, process modification to a more efficient process, and the use of environmentally friendly technology
Optimizing Waste Management for Circular Economy and Low-Carbon Development: A Case Study of Depok City, Indonesia
Full text linkIn Depok, Indonesia, rapid urbanization and economic growth have significantly increased waste production, exposing inefficiencies in existing management systems that contribute to environmental, health, and socio-economic problems, including pollution and rising greenhouse gas (GHG) emissions. This study evaluates the investment and operational requirements for optimal waste management, estimates potential GHG reductions compared to a Business as Usual (BAU) baseline in 2030, and examines policy implications that support a circular economy and low-carbon development. A mixed-method approach was employed by integrating field surveys, stakeholder interviews, and secondary data from local government and environmental agencies. Emissions were calculated for 2025 to 2030 using Intergovernmental Panel on Climate Change (IPCC) 2006 Tier 1 methods, while descriptive analysis was applied to interpret institutional and policy readiness. The results demonstrate that an optimized scenario, which emphasizes decentralized composting, recycling infrastructure, and improved governance, could achieve a 65% reduction in GHG emissions by 2030 relative to the BAU baseline. Beyond quantifying emissions, the novelty of this study lies in integrating financial, environmental, and governance dimensions within a city-level framework, which remains underexplored in Indonesian and Southeast Asian waste management research. Strategic recommendations include upgrading community-based facilities, implementing fair waste tariffs consistent with the polluter pays principle, and fostering greater citizen participation. By linking emission mitigation with financial feasibility and institutional mechanisms, this study highlights how secondary cities such as Depok can serve as models for advancing circular economy and low-carbon urban transitions in Indonesia
Analysis of Land Use/Land Cover Changes 2005–2020 Jagorawi Highway Corridor
Full text linkInfrastructure development has both negative and positive impacts on the surrounding area. Economics growth, improved living standards, education levels, and easy access are the positive impacts of infrastructure development, meanwhile, it also has the consequences on the naturalresource use and environmental impacts from unsustainable consumption and socio-economic consequences for people around the developed areas. With the currently limited land, management needs to be addressed wisely in areas with high demand for land. Infrastructure can be a catalyst for land use change. This study aims to determine land use changes that occurred in 2005, 2010, & 2020 and analyze its driving factors. We used time series data from Landsat imagery taken from Landsat 5 TM (2005 & 2010) and Landsat 8 OLI/TIRS (2020). Visual analysis method was used to identify and classify the eight land use types per each period of Landsat image series. A simple overlay method was applied to determine the effect of the factors of distance from JT Jagorawi, from arterial collector roads, from GT Jagorawi, and from the government center; and population density. The results show that the built-up area increased from 29.72% in 2005, 32.03% in 2010 and 35.82% in 2020. The range distance that has a potential change in land cover is 4 km from JT Jagorawi & GT Jagorawi; 1 km distance from arterial and collector roads; 7.5 km distance from the government center with a population density of < 5,000 to 10,000 people km2. 
Spatio-Temporal Detection of Vegetation Change and Recovery in Fire-Affected Peatlands of Sumatra, Indonesia
No full textTropical peatlands are among the most fire-prone ecosystems in Southeast Asia, where recurrent burning causes long-term degradation, carbon loss, and biodiversity decline. Assessing spatio-temporal patterns of recovery is therefore essential for guiding effective peatland restoration and fire prevention strategies. This study investigated vegetation recovery dynamics in a fire-affected peatland in Sumatra, Indonesia. Multi-temporal satellite imagery was processed to extract the Enhanced Vegetation Index (EVI) and Normalized Burn Ratio (NBR). Fire frequency and severity were further analyzed through hotspot distributions and fire history. The results revealed that NBR and dNBR were highly effective in detecting burned areas and assessing severity, while EVI provided complementary perspectives on recovery trajectories. Vegetation in once-burned areas showed relatively steady regrowth, with EVI values approaching pre-fire levels after several years. In contrast, repeatedly burned areas exhibited slower and more heterogeneous recovery, with fluctuating EVI pattern reflecting vegetation growth succession. Field vegetation surveys confirmed that repeated fires drastically simplified forest structure, reducing tree and pole density and favoring shrubs and ferns such as Stenochlaena palustris and Melastoma malabathricum. Overall, the study demonstrates that fire frequency and severity are critical determinants of peatland recovery. The EVI offers valuable insights into vegetation dynamics, while NBR provides reliable fire history mapping. These findings underscore the importance of combining spectral indicators with ground-based vegetation data for long-term monitoring and highlight the need for targeted restoration strategies, including hydrological rewetting and assisted natural regeneration, in repeatedly burned peatlands