Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management)
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Wetland Fires in Community Perspectives
Get PDFPersepsi di masyarakat sangat mempengaruhi terjadinya kebakaran karena jika masyarakat memiliki niat untuk membakar lahan maka akan menghasilkan perilaku untuk membakar lahan. Niat dalam melakukan suatu tindakan termasuk membakar lahan tidak muncul secara tiba-tiba tetapi harus melalui tahapan-tahapan. Behavior Planned Theory menyatakan bahwa perilaku yang dapat diprediksi oleh sikap terhadap perilaku, norma subjektif, dan persepsi kontrol perilaku akan mengubah niat dan perilaku individu. Metode: Rancangan penelitian yang digunakan dalam penelitian ini adalah kualitatif dengan pendekatan deskriptif, yaitu mengkaji dan menganalisis persepsi masyarakat terhadap kejadian kebakaran di lahan basah Ogan Ilir Sumatera Selatan. Informan penelitian terdiri dari informan ahli dan informan kunci. Informan ahli dalam penelitian ini adalah Badan Penanggulangan Bencana Daerah, Camat, dan Kepala Desa. Informan ahli adalah masyarakat di kecamatan di lokasi penelitian. Hasil: Hasil penelitian menunjukkan bahwa sikap terhadap perilaku, norma subjektif, dan persepsi kontrol berpengaruh positif terhadap niat masyarakat di Ogan Ilir untuk tidak membakar lahan. Kesimpulan: Planned Behavior Theory menjelaskan bahwa niat merupakan fungsi dari tiga determinan. Tiga komponen determinan yang mempengaruhi intensi pada individu dalam masyarakat yaitu masyarakat lebih suka membuka lahan dengan cara meracuni rumput dan menggunakan traktor. Niat tersebut mengakibatkan perilaku masyarakat yang tidak membakar lahan menjadi membuka lahan.Perception in the community greatly affects the occurrence of fire because if the community has the intention to burn land it will produce behavior to burn land. The intention in carrying out an action including burning land does not appear suddenly but must go through stages. Behavior Planned Theory states that behavior can be predicted by attitudes toward behavior, subjective norms, and perceptions of behavior control will change the intentions and behavior of individuals. Methods: The study design used in the study is qualitative with a descriptive approach, which is to review and analyze people\u27s perception of fire events in the Ogan Ilir wetlands of South Sumatra. Study informants consist of expert informants and key informants. The expert informants in this study are the Regional Disaster Management Agency, the Subdistrict Head, and the Village Head. Expert informants are the community in the subdistrict at the study site. Results: The results showed that attitudes towards behavior, subjective norms, and perceptions of control had a positive influence on the intention of the people in Ogan Ilir not to burn land. Conclusion: Planned Behavior Theory explains that intention is a function of three determinants. The three determinant components affect the intentions in individuals in the community, namely the community prefers to open land by poisoning grass and using tractors. The intention resulted in the behavior of people who do not burn land to open land
Ecological footprint and biocapacity analysis of upper Cisadane Watershed
Get PDFEcological footprint/EF (Jejak Ekologi) digunakan sebagai alat mengukur konsumsi manusia terhadap sumberdaya alam jika dibandingkan dengan kemampuan sumberdaya tersebut beregenerasi. EF mengukur seberapa besar bioproduktivitas area (lahan) yang dibutuhkan penduduk untuk aktivitas produksi sumber daya secara berkelanjutan yang digunakan untuk memenuhi kebutuhan dan menyerap limbah yang dihasilkan. Ketika EF melampaui BC maka akan terjad overshoot. Overshoot biasanya terjadi jangka pendek tetapi jika terus menerus bertambah akan menyebabkan degradasi lingkungan. DAS Cisadane menjadi wilayah studi karena merupakan bagian dari program pemerintah untuk meminimalkan kerusakan lingkungan. Tujuan dari penelitian ini adalah untuk mengetahui kondisi hulu DAS Cisadane, apakah secara ekologi surplus atau defisit. Hasil kajian menjelaskan bahwa DAS Cisadane bagian hulu mengalami defisit ekologi dari kurun waktu 2016-2020.
The Ecological footprint/EF is used as a tool to measure human consumption of the resource when compared they ability to regenerate. EF measures how much bio-productivity (BC) areas are needed by the population for sustainable resource production activities that are used to meet the needs and absorb the resulting waste. If EF over then BC, overshoot will be happened. Overshoot usually occurs short term but if continuously increasing will cause environmental degradation. Cisadane watershed became study area because it was part of government program to minimize environmental degradation. The purpose of this study was determining the condition of the upstream Cisadane watershed, whether the ecology is surplus or deficit. The result of study explained that upstream Cisadane watershed was ecology deficit from 2016-2020
Molecular taxonomy via DNA barcodes for species identification in selected genera of Fabaceae
Get PDFFabaceae is an invaluable plant family with considerable ecological and economic importances for example as food sources, bio-fertilizer, and medicinal plants. However, Fabaceae has been overexploited in Indonesia and several species belong to this family are critically endangered. Due to morphological similarity, rapid and accurate identification of Fabaceae species is essential to support its conservation efforts. Nowadays, species identification through DNA barcoding has become an effective taxonomic classification tool. This study was aimed to evaluate the effectiveness of chloroplast markers, matK and rbcL and the combination (matK+rbcL), as DNA barcodes for the identification of seleted genera in Fabaceae. The result showed that matK+rbcL and matK had the highest level of identification (90% and 82.05%) of the investigated genera, respectively. Additionally, matK had the highest mean of interspesific distance (0.134) and intraspecific distance (0.003). The combined barcode matK+rbcL had the highest correct identification rate when comparing the morphological with molecular identification. Furthermore, the best phylogenetic tree was obtained using Neighbor Joining method. Based on the overall performance, matK and matK+rbcL were the best barcodes for the selected genera in this study.Fabaceae merupakan famili yang penting secara ekologi dan ekonomi karena manfaatnya yang tinggi sebagai sumber makanan, pupuk hijau, serta tanaman obat. Namun, di Indonesia Fabaceae telah dieksploitasi secara berlebihan di Indonesia dan beberapa spesies termasuk dalam kategori terancam punah. Untuk mendukung upaya konservasi dibutuhkan teknik identifikasi yang cepat dan akurat. Saat ini, identifikasi spesies melalui DNA barcode telah menjadi teknik klasifikasi taksonomi yang efektif. Penelitian ini bertujuan untuk mengevaluasi efektivitas penanda matK, rbcL, serta kombinasinya (matK+rbcL), sebagai DNA barcode dalam identifikasi spesies dari famili Fabaceae. Hasil penelitian menunjukkan bahwa matK+rbcL dan matK memiliki tingkat identifikasi tertinggi (90% dan 82,05%) pada tingkat spesies. Selain itu, matK memiliki rata-rata jarak interspesifik tertinggi (0.314) dan jarak intraspesifik (0.0030). Selanjutnya pohon filogenetik terbaik dihasilkan dengan metode Neighbour Joining. Berdasarkan analisis secara keseluruhan matK dan matK+rbcL merupakan barcode terbaik untuk spesies terpilih dalam penelitian ini
Tourist’s Willingness to Pay toward Waste Management in Mount Salak Endah Tourism Area, Bogor District
Get PDFKawasan Wisata Alam Gunung Salak Endah (GSE) merupakan salah satu destinasi wisata di kawasan konservasi Taman Nasional Gunung Halimun Salak (TNGHS), Kabupaten Bogor. GSE mudah dijangkau baik dari Bogor maupun dari Jakarta. GSE memiliki berbagai destinasi alam yang indah seperti Curug Cigamea, Curug Kondang, dan pemandian air panas yang menarik banyak wisatawan. Jumlah wisatawan terus meningkat setiap tahun yang berdampak pada masalah lingkungan, yaitu berupa timbulan sampah. Oleh karena itu, penelitian ini bertujuan untuk: (1) Mengetahui dan mengeksplorasi persepsi wisatawan terhadap rencana kelola sampah kawasan wisata GSE berbasis wisatawan menggunakan mekanisme deposit refund dan (2) Menghitung willingness to pay wisatawan terhadap besaran uang jaminan dari potensi sampah yang dihasilkannya. Metode pengumpulan data skala likert dan Contingent Valuation Method (CVM) telah digunakan pada penelitian ini. Hasil penelitian menunjukkan bahwa wisatawan mendukung dan bersedia membayar uang jaminan, jika kelola sampah sistem deposit refund diberlakukan dengan berbasis wisatawan di kawasan wisata alam GSE.Mount Salak Endah (GSE) Natural Tourism Area is one of the tourism destinations in the conservation area of Mount Halimun Salak National Park, which is located in Bogor District. GSE is easy to reached, whether from Bogor or Jakarta. GSE has various beautiful natural destinations such as Cigamea Waterfalls, Kondang Waterfalls and hot spring attracting many visitors. The numbers of visitors keep increasing every year, but it is impacted to environmental problem, i.e. and in the end, it causes environmental problem: waste generation. The objectives of this study are (1) to identify and explore tourist perceptions regarding current and future waste management in the GSE natural tourism area and (2) Calculating the tourist’s willingness to pay related to the implementation of tourist-based waste management in GSE natural tourism area. This study used a Likert scale data collection method and Contingent Valuation Method (CVM). The tourist’s perception regarding waste management in the GSE natural tourism area shows positive result where tourists are willing to manage their waste with deposit refund
Analisis Spasial Lanskap untuk Keberlangsungan Habitat Bekantan (Nasalis larvatus) di Lahan Basah
No full textKajian spasial lanskap habitat Bekantan (Nasalis larvatus) masih terbatas informasinya untuk memperkirakan keberlangsungan habitatnya di lahan basah. Analisis spasial lanskap habitat Bekantan diperlukan sebagai informasi penting untuk kelestarian habitat Bekantan yang mengalami degradasi akibat adanya alih fungsi lahan. Penelitian ini bertujuan menganalisis karakteristik spasial lanskap habitat Bekantan di lahan basah. Menganalisis karakteristik lanskap habitat Bekantan diperlukan data Worldview-3 untuk memperoleh informasi penggunaan lahan dan tutupan lahan dengan cara klasifikasi berbasis GEOBIA, selanjutnya dianalisis menggunakan Fragstat 4.2 untuk memperoleh nilai Class Area (CA), Number of Patch (NP), Edge Density (ED), Landscape Shape Index (LSI), Mean Patch Size (MPS), dan Mean Shape Index (MSI) sebagai implementasi karakteristik habitat Bekantan. Hasil penelitian menunjukkan bentang lanskap Suaka Margasatwa Kuala Lupak memiliki luas sebesar 4.952,10 hektar yang terdiri dari 3936 pathces dengan ukuran rata-rata area seluas 67.945 hektar/patch dan standar deviasi 409.2696. Total edge memiliki luas sebesar 1191712.536 meter dan kerapatan sebesar 240.648 hektar. Mean Shape Index memiliki nilai sebesar 10.6713. Karakteristik habitat Bekantan di Suaka Margasatwa Kuala Lupak menggambarkan terjadinya fragmentasi habitat Bekantan dan kurang ideal untuk perlindungan satwa Bekantan, karena dapat menimbulkan kantong-kantong habitat yang terisolasi. Hasil Penelitian ini dijadikan informasi dasar untuk tindakan habitat Bekantan di Suaka Margasatwa Kuala Lupak.Spatial studies of the proboscis monkey (Nasalis larvatus) habitat landscape are still limited in information to estimate the sustainability of their habitat in wetlands. Spatial analysis of the proboscis monkey habitat landscape is needed as important information for the preservation of the proboscis monkey habitat which is experiencing degradation due to land conversion. This study aims to analyze the spatial characteristics of the proboscis monkey habitat in the wetlands. Analyzing the characteristics of the proboscis monkey habitat, Worldview-3 data is needed to obtain information on land use and land cover by means of a GEOBIA-based classification, then analyzed using Fragstat 4.2 to obtain Class Area (CA), Number of Patch (NP), Edge Density (ED) values, Landscape Shape Index (LSI), Mean Patch Size (MPS), and Mean Shape Index (MSI) as the implementation of Proboscis monkey habitat characteristics. The results showed that the landscape of the Kuala Lupak Wildlife Reserve has an area of 4,952.10 hectares consisting of 3936 patches with an average area of 67,945 hectares/patch and a standard deviation of 409,2696. The total edge has an area of 1191712,536 meters and a density of 240,648 hectares. The Mean Shape Index has a value of 10.6713. The characteristics of the proboscis monkey habitat in the Kuala Lupak Wildlife Sanctuary illustrates the occurrence of fragmentation of the proboscis monkey\u27s habitat and is not ideal for the protection of proboscis monkeys, because it can lead to isolated pockets of habitat. The results of this study are used as basic information for proboscis monkey habitat actions in the Kuala Lupak Wildlife Sanctuary
Changes in some soil chemical properties in peatland after two years of fire in Kubu Raya, West Kalimantan: Changes in some soil chemical properties in peatland
No full textKebakaran lahan gambut yang terjadi pada tahun 2018 berada di Kabupaten Kubu Raya, Kalimantan Barat. Kebakaran itu diklaim menyebabkan perubahan yang menyebabkan kerusakan lahan gambut. Studi awal berdasarkan sampel yang dikumpulkan dalam periode kebakaran melaporkan bahwa ada beberapa perubahan sifat kimia yang menyebabkan kerusakan lahan gambut. Penelitian ini bertujuan untuk mengevaluasi efek kebakaran lahan pada perubahan beberapa sifat kimia tanah setelah dua tahun kebakaran. Sampel tanah dari lahan gambut yang terbakar dan tidak terbakar dianalisis. Analisis tanah meliputi pH tanah, karbon organik (C), fosfor (P), kalsium (Ca), magnesium (Mg), kalium (K), besi (Fe), mangan (Mn), tembaga (Cu), seng (Zn), dan bobot isi tanah (BD) . Hasil penelitian menunjukkan bahwa setelah dua tahun kebakaran lahan gambut tidak mempengaruhi perubahan pH tanah gambut, C organik, P, Ca, Mg, K, Cu, Zn, Mn dan BD. Pada lahan gambut yang terbakar menunjukkan bahwa bobot pelepah dan luas area daun kelapa sawit yang ditanam di atasnya tidak berbeda secara statistik dengan lahan gambut yang tidak terbakar. Hasil penelitian ini menunjukkan bahwa beberapa sifat kimia kembali ke kesetimbangan sebelumnya karena kapasitas penyangga tanah gambut yang tinggi.Peatland fire that occurred in 2018 are located in Kubu Raya Regency, West Kalimantan. The fire was claimed to cause the changes leading to peatland damage. The initial study based on samples collected in fire period reported that there were some changes of chemical properties leading to peatland damage. The study aimed to evaluate the effect of land fires on changes in some soil chemical properties after two years of fires. Soil samples of fired and unfired peatland were subjected to soil analyses. Soil analyses covered soil pH, organic carbon (C), phosphorus (P), calcium (Ca), magnesium (Mg), potassium (K), iron (Fe), manganese (Mn), copper (Cu), zinc (Zn), and bulk density (BD). The results showed that after two years of peatland fires did not affect the changes of peat soil pH, organic C, P, Ca, Mg, K, Cu, Zn, Mn and BD. One plot of fired peatland showed that the weight of frond and leaf area of oil palm grown on it was not statistically different from those of unfired peatland. The results suggested some chemical properties return to previous equilibrium due to high buffering capacity of peat soil
Phosphate adsorption characteristics of ‘nanoclay’ separated from Indonesian volcanic tuffs
Get PDFDari material tuf volkan Indonesia yang diambil dari lapisan bahan induk profil Andisols dapat diseparasi fraksi ‘kleinano’ berukuran partikel <200 nm. Fraksi ‘kleinano‘ terseparasi ini memiliki karakteristik muatan bergantung-pH akibat adanya alofan yangterkandung dalam tuf volkan, sehingga dapat dimanfaatkan sebagai adsorben anionik alami karena proses separasinya dikondisikan berlangsung pada pH <4.0. Studi ini bertujuan membandingkan karakteristik adsorpsi fosfat dari ‘kleinano’ bermuatan positf berdasarkan model isotermal Langmuir, Freundlich, Brunauer-Emmett-Teller (BET), dan Dubinin-Radushkevich (D‒R). Fraksi ‘kleinano’ diseparasi menggunakan prosedur US Patent No. US2010/0187474 A1 yang dimodifikasi dengan penambahan tahapan perlakuan HCl. Hasil studi menunjukkan bahwa setelah ekuilibrasi 48 jam, aplikasi model Langmuir dan D‒R masing-masing menghasilkan kapasitas adsorpsi (parameter qe) 460.78 (dua-tapak) dan 439.66 mg.g-1 (tapak heterogen), sedangkan model BET dan Freundlich masing-masing menghasilkan adsorpsi pada lapisan pertama (parameter qmono) 111.11 mg.g-1 (multi-lapisan) dan konstanta adsorpsi (parameter 1/n) 0.28. Nilai parameter 1/n ini mengindikasikan bahwa ‘kleinano’ yang terseparasi merupakan adsorben bermutu tinggi (nilai 1/n 0.1 - 0.5). Kekurangan dan kelebihan aplikasi dari setiap model didiskusikan. Namun, Langmuir menunjukkan performa terbaik dalam hal persamaan linier dengan nilai R2 tertinggi yang diperoleh.From an Indonesian volcanic tuff taken from parent material layer of an Andisols profile, it was separated ‘nanoclay’ fraction of <200 nm particle size. The separated ‘nanoclay’ exhibits pH-dependent charge characteristic due to the presence of allophane in the tuff. Therefore, it can be utilized as a natural anionic adsorbent since its separation process was conditioned to proceed at pH <4.0. This study aims to compare phosphate adsorption characteristics of positively charged ‘nanoclay’ based on Langmuir, Freundlich, Brunauer-Emmett-Teller (BET), and Dubinin-Radushkevich (D‒R) isothermal models. The ‘nanoclay’ was separated using US Patent No. US2010/0187474 A1 procedure that was modified in this study with addition of HCl treatment. The results showed that after 48 h equilibration, application of Langmuir and D‒R model resulted adsorption capacity (qe para-meter) of 460.78 (two-sites) and 439.66 mg.g-1 (heterogeneous sites), respectively, while BET and Freundlich model resulted respectively adsorption at the first adsorptive layer (qmono parameter) of 111.11 mg.g-1 (multilayers) and adsorption constant (1/n parameter) of 0.28. The later indicated that the studied ‘nanoclay’ was a high-quality adsorbent (1/n value 0.1-0.5). Limitations and advantages application of each model were discussed. However, Langmuir showed the best performance in term of linear equations with the highest R2 values obtained
Public and Private Sector to Zero Deforestation Commitmen in South Sumatra
No full textUntuk mengatasi deforestasi, Pemerintah Sumatera Selatan berkomitmen untuk menjadi yang terdepan dalam mencapai Pertumbuhan Hijau 2017. Semua kegiatan ekonomi terkait tata guna lahan harus sesuai dengan regulasi. Sektor swasta mendukung dengan beberapa inisiatif melalui sertifikasi sebagai komitmen mereka terhadap nol deforestasi (ZDC). Namun dari data tutupan lahan, Sumatera Selatan merupakan salah satu provinsi dengan kehilangan tutupan hutan tertinggi di Indonesia yang diikuti dengan peningkatan kegiatan ekonomi. Kajian ini bertujuan untuk menjelaskan komitmen sektor publik dan swasta dalam mewujudkan nol deforestasi. Kami melakukan wawancara dengan instansi terkait dan mengumpulkan data tentang intervensi publik dan inisiatif swasta. Penelitian ini menggunakan teori kepatuhan untuk menganalisis komitmen kedua sektor. Hasil penelitian menunjukkan bahwa sektor publik dan swasta di Sumatera Selatan telah menunjukkan komitmennya terhadap jenis kepatuhan yang diinduksi oleh perjanjian. Kepatuhan tersebut menunjukkan bagaimana komitmen tersebut diintegrasikan ke dalam kebijakan, pengaturan tata kelola publik dan swasta yang selaras, dan perubahan kualitas lingkungan yang baik dengan penurunan laju deforestasi dari 4% menjadi 2%. Hal ini menunjukkan bahwa salah satu tujuan ZDC yaitu setidaknya mengurangi separuh laju hilangnya hutan alam pada tahun 2020 telah dilaksanakan oleh kedua sektor. Selain itu, kedua sektor tetap berupaya untuk mengakhiri hilangnya hutan alam pada tahun 2030.To address deforestation, South Sumatra Goverment was committed to be the frontrunner in attaining Green Growth 2017. All economic activities related to land use must comply with the regulations. The private sector supports them with some initiatives by several certifications as their commitment toward zero deforestation (ZDC). However, from the land cover data, South Sumatra Province is one of the highest forest cover loss in Indonesia followed by increasing economic activities. This study aims to explain commitments of the public and private sectors in complying toward zero deforestation. We conducted interviews with relevant agencies and collect the data regarding interventions and initiatives. This study used compliance theory to analyze the commitments of both sectors. The results showed that the public and private sectors in South Sumatra have shown their commitment with the type of treaty-induced compliance. The compliance showed how the commitment is integrated into policies, aligned public and private governance arrangements, and a good environmental quality change by reduced deforestation rate. This showed that one of the ZDC’s objectives is at least halve the rate of loss of natural forests globally by 2020 has been implemented by both. Thus, they strive to end natural forest loss by 2030
Evaluation of the suitability of marine tourism in the Mandeh Archipelago, West Sumatra
Get PDFIndonesia has a huge potential in the development of marine tourism, because it has many islands and very beautiful coastal areas. The Mandeh area has enormous potential in developing marine tourism, due to its beautiful coastal areas and islands. The purpose of this study was to evaluate land suitability and determine constraints for the development of marine tourism in the Mandeh area. To determine the evaluation of land suitability using the Geographical Information System (GIS) method using ten indicators, namely: depth, beach type, beach width, basic material, current velocity, coastal independence, beach brightness, land use, hazardous biota, and availability of fresh water. Furthermore, to determine the constraints using the Interpretative Structural Modeling (ISM) method, the ISM method involves stakeholders from tourism experts, community leaders, tourism businesses, local governments. The results of research on the evaluation of the land suitability of marine tourism in the Mandeh area are mostly or about 35% very suitable (S1) for marine tourism, while the unsuitable area (N) is only 20% of the total area. Based on the analysis of the obstacles to developing marine tourism in the Mandeh area, namely the lack of investment capital and professional personnel in the development of marine tourism
Forest and Peatland Fire Severity Assessment at Siak Regency, Riau Province using Sentinel-2 Imagery
Get PDFSiak Regency, Riau Province is one of the most forest and land fire-prone regencies in Indonesia. Most of the fires occur in peatland areas which contributes to the transboundary haze pollution in the region. Despite limited studies, fire severity assessment is an essential step in post-fire activities to estimate ecological impacts and economic impacts and law enforcement. This study aims to estimate fire severity using Sentinel-2 imagery at Siak Regency, Riau Province. The methods applied Normalized Burn Ratio on Sentinel-2 Imagery as an identification model based on reflectance value for 2019 imagery. The study revealed that burned areas in Siak Regency could be classified into four fire severity classes: low fire severity, moderate-low fire severity, moderate-high fire severity, and high fire severity. High fire severity was found mainly at Sungai Apit and Mempura Districts