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"Penelitian ini memiliki beberapa tujuan; untuk mengetahui jumlah populasi dan spesies penyu bersarang, untuk mengetahui karakteristik habitat peneluran penyu mencakup vegetasi dan untuk mengetahui ancaman antropogenik berupa sampah. Tanjung Binerean merupakan bagian dari Kawasan Ekosistem Esensial terutama untuk perlindungan burung maleo. Pantai berpasir putih yang membentang sepanjang 3 km tersebut juga menjadi kawasan peneluran bagi penyu. Terdapat empat spesies penyu yang tercatat pernah bertelur di kawasan tersebut, yaitu penyu lekang, penyu sisik, penyu belimbing dan penyu hijau. Penelitian yang dilakukan selama 3 bulan dari bulan September sampai Desember 2020 menunjukkan hanya 1 penyu yang mendarat yaitu penyu lekang dengan jumlah telur 103 butir dengan karakteristik sarangnya sebagai berikut, yaitu kedalaman 46 cm dan diameter 15 cm, suhu tanah 28,8℃, pH 5,8, kelembapan 98% dan jarak sarang dengan air laut 7,8 m. Rata-rata suhu Tanjung Binerean pada tahun 2020 sebesar (28,4℃ ± 1,71). Analisis vegetasi Tanjung Binerean menghasilkan nilai indeks keanekaragaman (H’) sebesar H’=3,06. Nilai INP untuk jenis vegetasi pohon yang paling tinggi dimiliki oleh Cocos nucifera dengan nilai INP 59. Sedangkan untuk jenis vegetasi lower crop nilai INP terbesar dimiliki oleh Ipomoea pes-caprae yaitu sebesar 30. Total berat sampah yang didapatkan sebanyak 65,2 kg. Jumlah sampah terbanyak adalah jenis sampah plastik sebanyak 1023 dari total 1485 pieces (69%).

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This research has several objectives; to determine the number of nesting populations and species of turtles, to determine the characteristics of turtle nesting habitat including vegetation and to determine anthropogenic threats in the form of marine debris. Tanjung Binerean is part of the Essential Ecosystem Area, especially for the protection of maleo birds. The 3 km long white sandy beach is also a nesting area for turtles. There are four species of sea turtles that have been recorded as having laid their eggs in the area, namely the olive ridley turtle, hawksbill turtle, leatherback turtle and green turtle. Research conducted for 3 months from September to December 2020 showed only 1 turtle landed, namely the olive ridley turtle with 103 eggs with the following nest characteristics, namely 46 cm depth and 15 cm diameter, soil temperature 28.8 ℃, pH 5.8, humidity 98% and the nest distance from sea water is 7.8 m. The average temperature of Tanjung Binerean in 2020 is (28.4 ℃ ± 1.71). Tanjung Binerean vegetation analysis produces a diversity index value (H ') of H' = 3.06. Cocos nucifera had the highest IVI value for tree vegetation with an IVI value of 59. Meanwhile, Ipomoea pes-caprae had the highest IVI value for lower crop vegetation, namely 30. The total weight of waste obtained was 65.2 kg. The highest amount of waste is plastic waste, amounting to 1023 of a total of 1485 pieces (69%)."

"ABSTRAKLanskap sosio-ekologi di wilayah penelitian terbentuk karena aktifitas manusia pada lingkungan fisik yang memiliki struktur adat, kekeluargaan, kolektivitas dan modal untuk sustainability. Terdapat lanskap pertanian agriculture and mosaics berbasis kearifan lokal pada wilayah ketinggian 0-100 mdpl, agroforestri other dominant natural landcover berbasis pengetahuan ekologi tradisional pada wilayah ketinggian 101-600 mdpl, dan hutan forest berbasis hukum adat pada wilayah ketinggian 601-1000 mdpl. Metode kuantitatif dan kualitatif dalam penelitian ini menunjukkan bahwa sistem tenurial yang paling sering terganggu berada pada lanskap agroforestri ketinggian 100-600 mdpl dimana tersedia jalan-jalan kantung produksi sebagai sarana mobilisasi masyarakat dari permukiman ke hutan dan dominasi kebun pribadi di dalam kawasan hutan milik negara.

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ABSTRACTSocio ecological landscape is formed by human activities in the physical environment shows customary, familial, collectivity and capital structure for sustainability. There are 3 types of socio ecological landscape based on altitude local wisdom based agricultural landscapes at altitude 0 100 masl, traditional ecological knowledge based agroforestry landscapes at altitude 101 600 masl, and customary law based forest landscapes at altitude 601 1000 masl. This study documents sacred places protected by indigenous community, customary law relevancies, and the perception of forest tenure. Quantitative and qualitative method result disturbed tenure system often found in agroforestry landscapes altitudes of 100 600 masl where crop production road wage mobilization from settlement to forest area and there is a dominance of private owned garden within state forest areas. "

"Penelitian Indeks Kepekaan Lingkungan (IKL) terhadap potensi tumpahan minyak di pesisir utara Teluk Tolo difokuskan kepada evaluasi model-model IKL yang banyak digunakan oleh berbagai pihak. Model yang dijadikan bahan evaluasi adalah model yang dikembangkan oleh Pusat Kajian Sumberdaya Pesisir dan Lautan Institut Pertanian Bogor (PKSPL-IPB), model dari Det Norske Veritas (DNV), dan model dengan Metode Penjumlahan. Komponen-komponen penyusun IKL diperoleh dari analisis citra ALOS AVNIR dan PRISM tahun 2009 dan 2010. Hasil analisis citra diperoleh 16 komponen penyusun IKL yang kemudian dilakukan skoring untuk dimasukan ke dalam setiap model IKL. Setiap model ternyata memberikan hasil yang bervariasi dalam memberikan informasi wilayah kelas IKL. Variasi tersebut terutama terjadi pada wilayah daratan dengan ketinggian lebih dari 5 meter dan jarak dari garis pantai lebih 1 km ke arah darat. Kondisi ini dijumpai hampir di sepanjang garis pantai. Uji dengan ANOVA dengan tingkat kepercayaan 95 % menunjukkan bahwa terdapat perbedaan antara ketiga model tersebut. Uji lanjutan dilakukan dengan menghitung indeks sensitivitas model untuk menentukan model terbaik dalam memberikan informasi IKL. Berdasarkan indeks tersebut diperoleh hasil bahwa Model Penjumlahan mempunyai nilai rata-rata (mean) terbesar yang berarti model tersebut adalah model terbaik untuk memberikan informasi spasial IKL.

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Study on Environmental Sensitivity Index (ESI) related to potential of oil spill was conducted in the northern coast of the Tolo Bay, Central Sulawesi. This study focused on the comparative evaluation of ESI models widely used by various parties. The models included in this study are those developed by the Centre for Coastal and Marine Resources Studies, Bogor Agricultural University (IPBPKSPL), used by Det Norske Veritas (DNV), and a model using Summation Method. The ESI components are obtained from image analysis done by ALOS AVNIR and PRISM 2009 and 2010. Upon the production of 16 ESI components, scoring is performed into each ESI model. It turns out that spatially each model give various results in providing the information on ESI-class areas. Variations occurred mainly on inland areas with altitude of more than 5 meters and those with distance over 1 km landward from the shoreline. These conditions are found almost along the shoreline of study areas. ANOVA Test (with 95% confidence interval) suggested a difference is occured between the three given models. Further tests were performed by calculating the sensitivity index models to determine the best model. Based on these calculations, the Summation Model produced the highest mean, which suggest it is the best model to provide an ESI spatial information."

"The study area has been subjected to intense fracturing or brittle deformation resulting in five main trends of lineaments and faults, i.e. (1) the Group A (the Perantanaan Fault Group) with a mean of direction N95°E/ N275°E, (2) the Group B (the Gorontalo Fault Group) with a mean of direction N125°E/ N305°E, (3) the Group C (the Paleleh Fault Group) with a mean of direction 165°E /N335°E, (4) the Group D (the Randangan Fault Group) with a mean of direction N25°E/ N205°E and (5) the Group E (the Kuandang Fault Group) having a mean of trend of N55°E/ N235°E. The complexity of structural pattern in the study area has been interpreted to be due to stress system evolution during Neogene - Pleistocene. The changing stress system orientation has reactivated the preexisting faults of the five groups with different sense of movements from the older deformation.The nearly E-W trending lineaments of Group A or the Perantanaan Fault Group coincide with trend of the long axis of ridges and valleys or depression areas which are covered by volcanic rocks, lake deposits, and alluvium of Quaternary age. This group of structures was presumably developed as reverse or thrust faults during Late Neogene which later on to have beem reactivated as normal faults due to extensional tectonics of the North Sulawesi area during Plesitocene."

"Studi kelayakan pembangunan jalan Tambu-Kasimbar dimaksudkan untuk mendapat nilai manfaat secara ekonomi dari rencanan Pembangunan jalan Tambu-Kasimbar dalam mendukung konektifitas IKN dan Indonesia Timur. Pendekatan dengan proyek (with project) diasumsikan sebagai suatu kondisi, dimana diperlukan suatu investasi/proyek yang besar, yang dilaksanakan untuk meningkatkan kapasitas maupun struktur jalan. Sedangkan untuk pendekatan tanpa proyek (without project) diasumsikan sebagai suatu kondisi, dimana tidak ada investasi/proyek yang dilaksanakan untuk meningkatkan kapasitas maupun struktur jalan, kecuali untuk mempertahankan fungsi pelayanan jalan, yaitu berupa pemeliharaan rutin dan pemeliharaan berkala. Tahapan analisis dimulai dengan formulasi dari 3 (tiga) alternatif ruas terpilih yang selanjutnya dibuat desain pendahuluan pada perencanaan trase jalan dan nilai tebal perkerasan. Komponen biaya manfaat dihitung berdasarkan pendekatan coustemer suprplus yang didasarkan saving Biaya Operasional Kendaraan (BOK), dan saving nilai waktu. proses analisis kelayakan ekonomi ini dilakukan untuk menghitung kelayakan pembangunan dan pengoperasian Ruas Jalan Tambu – Kasimbar CS dengan membandingkan antara jumlah biaya (cost) terhadap manfaat (benefit pada pengguna lalu lintas/consumer surplus berupa penghematan Biaya Operasi Kendaraan dan Nilai Waktu. Hasil studi diperoleh Total biaya manfaat dari customer surplus adalah Rp. 712,458 Milyar pertahun. Nilai EIRR sebesar 16.89% memenuhi kelayakan ekonomi >12%, BCR suku Bungan 12% sebesar 2.38% >1, Nilai Net Present Value (NPV) = Rp. 5.254.783.058,- >0 sehingga dapat disimpulkan pembangunnan jalan Ruas Tambu-Kasimbar layak dilaksanakan dari segi lalulintas maupun ekonomi Implementasi praktik keinsinyurandalam rencana pembangunan jalan ruas tambu – kasimbar anata lain; analisis teknis yang komprehensif, pertimbangan aspek lingkungan dan sosial, konsultasi dengan pemangku kepentingan, analisis risiko dan keselamatan kerja, pemilihan material dan teknologi yang tet diterapkan dalam pelaksanaan studi ini.

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The feasibility study of Tambu-Kasimbar road construction is intended to benefit economically from the Tambu-Kasimbar road development plan in supporting IKN and Eastern Indonesia connectivity. The approach with the project is assumed to be a condition, where a large investment/project is required, which is carried out to improve the capacity and structure of the road. As for the no-project approach, it is assumed as a condition, where no investment/project is carried out to increase the capacity or structure of roads, except to maintain the function of road services, namely in the form of routine maintenance and periodic maintenance. The analysis stage begins with the formulation of 3 (three) alternative selected sections which are then made preliminary designs on road trase planning and pavement thickness values. The cost benefit component is calculated based on the coustemer suprplus approach which is based on saving Vehicle Operating Costs (BOK), and saving time value. This economic feasibility analysis process is carried out to calculate the feasibility of building and operating the Tambu – Kasimbar CS Road Section by comparing the total costs (costs) to benefits (benefits to traffic users / consumer surplus in the form of savings in Vehicle Operating Costs and Time Value. The results of the study obtained The total cost of benefits from customer surplus is Rp. 712,458 billion per year. EIRR value of 16.89% meets economic feasibility of >12%, BCR of Bungan tribe 12% of 2.38% >1, Net Present Value (NPV) = Rp. 5,254,783,058,- >0 so that it can be concluded that the construction of the Tambu-Kasimbar section is feasible in terms of traffic and economy Implementation of engineering practices in the tambu – kasimbar anata road construction plan of other anata sections; Comprehensive technical analysis, consideration of environmental and social aspects, consultation with stakeholders, occupational risk and safety analysis, selection of materials and technologies that have been applied in the implementation of this study."