Judul: The Role of Sacred Natural Sites on the Management Effectiveness of Nusa Gede Panjalu Strict Nature Reserve, Ciamis Regency, Province of West Java.
Abstrak: Pemanfaatan kawasan konservasi yang tidak sesuai dengan peruntukkannya dapat mendukung konservasi kawasan yang efektif. Vegetasi Cagar Alam Nusa Gede Panjalu (CA NGP) yang ditetapkan berdasarkan alasan botanis pada tahun 1919, dikatakan masih memiliki kondisi yang baik walaupun kawasan ini digunakan sebagai lokasi kegiatan wisata ziarah. Penelitian dilaksanakan pada bulan Agustus s/d Oktober 2011 dengan tujuan untuk mengkaji peran Situs Keramat Alami (SKA) dan mengukur efektivitas pengelolaan CA NGP. Data dikumpulkan melalui observasi lapangan, eksplorasi flora, wawancara dan studi pustaka. Keberadaan makam keramat di CA NGP, mampu melestarikan kealamian vegetasi yang diindikasikan dengan masih ditemukannya lumut dan tidak adanya jenis Macaranga sp. maupun Mallotus sp. yang umumnya dijumpai pada kawasan hutan dataran rendah yang terganggu. Melalui upacara Nyangku, masyarakat Desa Panjalu menjaga keutuhan kawasan, hal ini ditunjang pula oleh keinginan para peziarah agar kondisi lingkungan di sekitar makam tetap alami, hanya untuk keperluan berdoa dan tafakur alam. Dampak kegiatan wisata ziarah selain membantu perekonomian masyarakat setempat, juga telah menciptakan sebuah manajemen kolaboratif antara masyarakat Desa Panjalu, pengelola BKSDA, Pemda Kabupaten Ciamis, Pemdes Panjalu dan para peziarah. Nilai kekeramatan CA NGP sebagai SKA terbukti mampu mengakomodasi interaksi kuat antara ekologi, budaya, proses keagamaan serta ekonomi sehingga tercipta pengelolaan kawasan yang efektif. Konservasi kawasan dapat memanfaatkan hasil penelitian ini dengan menjadikan kawasan SKA sebagai sebuah kawasan konservasi atas dasar nilai botanisnya, terutama bagi kawasan SKA yang berada dalam habitat dengan nilai ekologi dan etnobotani yang tinggi.
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Judul: Kajian Potensi dan Daya Dukung Ekowisata di Kawasan Cagar Alam Pulau Sempu Jawa Timur
Abstrak: Pulau Sempu Nature Reserve (PSNR) has become a popular destination for ecotourism in East Java. The ecotourism activities pose management issue related to the status of the area. According to its status as a nature reserve, the tourisme and other activities entering the site is forbidden except for education, research and development of science. Nevertheless, the visitor numbers increase by time and can’t be avoid. The pressure of this tourisme demand will affect the declining of quality and quantity of the PSNR biodiversity resource, soon will threaten its sustainability. Strategic plans need to deal with the problems, to optimize the value and function of the site. The reseach was conducted : (1) To identify and analyze potential objectives of natural tourist attraction in PSNR (2) To analyze its carrying capacity regarding the impacts of tourism activities (3) To formulate a strategic plan of PSNR according to its potency and status. The research was taken for 6 months on October 2012 until March 2013. Field observation and multistakeholder deep-interview was taken to gain data. Potency assessment analysis conducted to assess objectives of natural tourist attraction in PSNR. Carrying capacity analysis based on criteria and indicators of site situation which is ecotourism doesn’t affect physically to the site resources. The SWOT analyse was used to formulate the strategic management plan. The result from analysis of objects assessment of natural tourist attraction (ADO-ODTWA) showed that PSNR is very potential to be developed as ecotourism destination with 85,41% land attraction and 83,33% beach attraction. The main attraction is a uniqe phenomenon lagoon called Segara Anakan, biodiversity and its ecosystem. Those attractions have not supported by some facilities i.e accommodation, institution element, infrastructure, management and service, accessibility, and declining of environmental quality. The carrying capacity limited by factors i.e slope, type of soil against erosion sensitivity, landscape potency, climate, wildlife disturbance index. The recent visit assessed were below the standard carrying capacity especially in “blok rimba” management plan of PSNR. In the future the management authority (BBKSDA Jawa Timur) should notice and hold up management standard based on ecotourism. The SWOT analysis result as the strategic management plan based on ecotourism, 1) Management policy is to divide the “blok inti” and “blok rimba” to prevent the lost of biodiversity and its ecosystem function 2) To evaluate the recent status as basic proposal to change the recent status from of nature reserve to natural park 3) Fully improve coordination to Malang regency as local institution to improve management of PSNR 4) Develop ecotourism based on its potency 5) Develop management collaboration with all stakeholder especially the people of Sempu as local resident.
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Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
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