Judul: Analisis Sumberdaya Sosial dalam Pengelolaan Kawasan Taman Nasional (Studi Kasus Kasepuhan Citorek Kecamatan Cibeber Kabupaten Lebak Provinsi Banten)
Abstrak: Kasepuhan Citorek merupakan salah satu kasepuhan yang berada di kawasan Taman Nasional Gunung Halimun Salak (TNGHS). Masyarakat Kasepuhan Citorek telah berinteraksi dan berada di sekitar kawasan taman nasional sejak zaman penjajahan Belanda pada abad ke-18. Daerah Citorek merupakan salah satu daerah pelarian anggota kerajaan Padjadjaran, yang kemudian membentuk komunitas yang disebut kasepuhan (Hanafi et al. 2004). Keberadaan taman nasional menjadi bersinggungan dengan masyarakat karena adanya Surat Keputusan Menteri Kehutanan No. 175/Kpts.-II/2003 dalam hal penggunaan akses sumberdaya alam. Pengelolaan kawasan bersama masyarakat merupakan strategi pengelolaan yang tepat dengan bertujuan agar ekosistem kawasan tetap terjaga tanpa menekan tingkat kesejahteraan masyarakat sekitar kawasan. Penelitian ini dilakukan pada bulan Maret-April 2012 di Kasepuhan Citorek. Data dikumpulkan melalui studi literatur, pengamatan berperanserta, wawancara semi terstruktur dengan 100 orang responden serta narasumber kunci berupa tokoh adat dan pihak pengelola TNGHS. Data dianalisis dengan analisis deskriptif kualitatif.
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Judul: Analisis Perubahan Penutupan Lahan di Hutan Adat Kasepuhan Citorek, Taman Nasional Gunung Halimun-Salak
Abstrak: Land cover in forested area has changed rapidly. Land conversion, illegal logging, land clearing and fire are few factors which caused forest decrease. Indigenous people in Kasepuhan Citorek, who lives in and around the forest, is a community with manners and customs prescription including human – nature relation particularly in forest management. But as population growth rapidly, the forest resources become degraded in those area and therefore needed an observation. Geographic Information System and remote sensing are kind of technology which can help that task. The aims of this study were (1) to examine the boundaries, land classification and management of Citorek customary forest based on society information, (2) to examine land cover in those area in 1990, 1997, 2006 and the alteration and (3) to find out the factors which caused the alteration of the land cover. This study was conducted in January to July 2008 in Kasepuhan Citorek costumary forest area. The collected data consist of spatial data which contains maps, images, ground control point, and attribute data which contains rural data, land altered data and social perception. Spatial data were processedusing Geographic Information System and remote sensing. Meanwhile, the attribute data processed descriptively and then analyzed with qualitative method for identifying its impact on land cover change. Kasepuhan Citorek costumary forest (wewengkon) is bounded by mountain and hill surrounding. The wewengkon divided into three areas which are leuweng titipan, leuweng tutupan, and leuweng garapan. They cultivate the land according to their kasepuhan tradition with shifting cultivation system. During the 1990 to 2006, the number of population density increase. This will make the occurrence of land conversion because increasing land demand. Most of Citorek people (95.04%) work in agricultural area and they are low educated. The people knowledge about the boundaries, regulation and costumary forest classification is getting vanished. Their perception about the national park according to Likert scale is medium. The Citorek wewengkon is classified into nine landscape which are forest, mixed plantation, bushes, field, farm, open area, developed area, body of water and other land cover. The decrease of forest, field, and open area occur in 1990 to 2006. On the other hand, the increment occurs in farm, developed area and body of water. While, mixed plantation and bushes are being fluctuated in it quantity. Custom spatial regulation can be well-suited with the national park zonation by considering the traditional rule and field actual condition in each part of wewengkon. Not all of the Citorek people know about the boundaries, regulation, and classification of the costumary forest. During the 1990 to 2006, land cover change occur in each type of landscape. Factors contributed to land use change are social and economic change (population growth, education rate and occupation), farming tradition of kasepuhan people, and less people knowledge about the custom regulation, particularly in wewengkon classification. Land cover alteration can be controlled by social participation on national park management and continuity on monitoring programme.
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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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