Judul: Aplikasi penginderaan jauh dan sistem informasi geografis dalam evaluasi potensi lindung dan wisata mangrove di segoro Anak, Taman Nasional Alas Purwo, Kabupaten Banyuwangi
Abstrak: Mangrove merupakan ekosistem unik pada ekosistem estuari daerah tropis dengan keanekaragaman hayati yang tinggi. Mangrove mempunyai peran penting dalam menyangga kehidupan pesisir baik berupa peran ekonomi maupun peran ekologis. Seiring dengan perkembangan waktu, konversi dan eksploitasi mangrove untuk memenuhi kebutuhan manusia mengancam kelestarian ekosistem mangrove. Selain kepentingan diatas, kondisi alam, batas-batas administrasi menyebabkan tekanan pada ekosistem mangrove. Sebagai langkah awal" bagi pengelolaan ekosistem mangrove, evaluasi kesesuaian lahan untuk tujuan tertentu mutlak dilakukan. Salah satu metode yang dapat digunakan untuk mengevaluasi pengelolaan ekosistem mangrove adadalah dengan penginderaan jauh dan Sistem Informasi Geografis (SIG). Dalam penginderaan jauh, sebaran, Iuasan dan kerapatan mangrove dapat dianalisis. Sedangkan Sistem Informasi Geografis menggabungkan hasil analisis penginderaan jauh dengan parameter-parameter yang digunakan dalam analisis kesesuaian lahan untuk kawasan lindung dan wisata mangrove. Ekosistem mangrove Segoro Anak merupakan salah satu ekosistem mangrove dengan kualitas yang masih bagus di Pulau Jawa. Luas hutan mangrove Segoro Anal meliputi 1232,37 ha. Sebagian besar (66,99%) mangrove Segoro Anak merupakan mangrove dengan kerapatan sangat tinggi, 2,70% mangrove sangat jarang, 3,98% mangrove jarang, 12,69 mangrove agak rapat, 5,98% mangrove kerapatan sedang dan 4,55% merupakan mangrove rapat. Untuk melakukan suatu kegiatan konservasi dengan tetap menjaga kelestarian mangrove, maka dilakukan suatu analisis kesesuaian lahan. Dalam hal ini ekosistem mangrove dievaluasi untuk tujuan pemanfaatan mangrove sebagai kawasan lindung dan wisata.
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Judul: Evalusai Pengembangan Ekowisata Mangrove: Studi kasus di Bedul, Resort Grajagan, Taman Nasional Alas Purwo, Banyuwangi, Jawa Timur
Abstrak: Mangrove forest is a very unique tropical forest ecosystem. Alas Purwo National Park (APNP) prossesses some natural mangrove forest. The development of mangrove acotourism in APNP has accoured before 2007 by APNP and Desa Sumbersari. However, it is not easy to establish ecotourism which contibutes to the satisfication of the visitors, well-being of the local people and ecological sustainability. It is worrying when the term "ecotourism' is just used for marketing of certain tourism products with a lack of stakeholder' understanding of ecotourism principlea. Therefore, evaluating mangrove ecotourism development in APNP should beconducted. Tehe objectives of this research are to identify mangrove ecotourism potentials at APNP, evaluate the curent tourism activity at Bedul APNP and its development into mangrove ecotourism by cross checkingh it to principles of ecotourism, and finally, arrange recommendation to APNP regarding mangrove ecotourism implementation.
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Judul: Effects of Particle Shapes on Temperature Distribution under Static Ohmic Heating.
Abstrak: The ohmic heating is defined as a process wherein an alternating electrical current is passed through materials resulting in the heat generation inside the product. The excellence of ohmic heating in comparison with other thermal processing is its energy efficiency and ohmic heating could keeping nutritional as well quality attribute of food via blanching, sterilization, pasteurization, extraction, fermentation, and evaporation. Nevertheless, in ohmic heating process, the electrical conductivity of product is a key parameter. The worst case in the ohmic heating of multiphase product could be occurred when the solid phase has very lower or very high electrical conductivity than the liquid. This study aims to reveal the temperature distribution and the heating rate properties of solid and liquid phase as affected by particle shape and its orientation to the electric field. Experiments were conducted with salt solution 1% and carrot that blanched in salt solution 6%. Blanching process was conducted in order to increase the electrical conductivity of carrot close to the salt solution 1%. Ohmic heating was applied to the sample using static cell (4.90 cm diameter and 6.00 cm in length of sample area) at constant voltage gradient (40 V). Each experiment was conducted in triplicate. It was observed that the different particle shape and orientation provide the different heating rate properties. The slice particle had the fastest heating rate. Moreover the perpendicular orientation was heated faster than parallel orientation. The parallel cylindrical shape provides the slowest heating rate. This shape possibly induced the worst-case condition and could be used as sufficiency heat parameter. The heating pattern of each solid and liquid were simulated using COMSOL modeling software. The predicted temperature values were in good agreement with the experimental data with the maximum prediction error of 3 °C.
Keyword: particle orientation, particle shape, electrical conductivity, ohmic heating