Judul: Etnobotani dan potensi tumbuhan berguna di Taman Nasional Gunung Ciremai, Jawa Barat
Abstrak: The people around TNGC have a very close interaction with the surrounding natural resources as can be seen when they deal with the use of plants (ethnobotany). Documenting the people‟s knowledge in TNGC ethnobotany is especially important so that the knowledge of TNGC people in the use of these plants can be preserved. This study aimed to identify the use of plants by the people around TNGC (etnobotany) and to find out the potential of useful plants in the TNGC region. Ethnobotany study was conducted by interviews and the potential of useful plants in the TNGC region was learned through a vegetation analysis. The number of species obtained from the ethnobotany results was 131 species and 62 families. Medicinal plants were among the much used reaching 37 species. The number of spesies obtained from the results of vegetation analysis was 99 plant spesies and 43 families residing in the TNGC area. The most useful plant species were plants producing buildings as many as 14 species. Out of 131 plant that were used by community, many them were not be found in the area of TNGC reached 113 species, whereas plants that were aas many as 18 species. Of all the plants obtained from the ethnobotany results and vegetation analysis, 10 superior species can be develoved by communities around the TNGC area, for example, nilam (Pogostemon cablin) as aromatic material and raw material for the manufacture of perfume and ground orchids with yellow flowers (Phaius flavus ) for ornamental plants. These superior species if well-cultivated are expected to help TNGC community improve their income.
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Judul: Kajian etnobotani masyarakat di sekitar Taman Nasional Gunung Merapi: studi kasus di Desa Umbulharjo, Sidorejo, Wonodoyo dan Ngablak
Abstrak: Mount Merapi National Park (TNGM) has total an area about 6410 ha, with the details: in Central Java Province about 5126.01 ha and in Province of Yogyakarta Special Region about 1283.99 ha. By looking at the potential of plants and community culture in TNGM region (in the terms of plant utilization) allows interaction between community and that region. Therefore, the study of ethnobotany community around TNGM region needs to be done. The purpose of this study are to know and identify the various utilization of plants by community around TNGM and also to know kind of interaction between community and potential plant diversity in TNGM region. The research was conducted in 4 (four) villages in the surround TNGM region included the Village Umbulharjo, Sidorejo, Wonodoyo and Ngablak. This research carried out about 2 months that started from June to August 2010. The method used in this research was a field survey. The activities undertaken in this research included interviews, making of herbarium, data processing and data analysis. The data was collected in the form of primary data (ethnobotany) and secondary data (general conditions of the location). Primary data collection techniques was conducted through interviews with the respondents (people around TNGM) whereas secondary data was done through literature studies. Based on research results, indicate that the characteristics of respondents in the surround TNGM that most livelihood as farmers and low educated (Elementary School), with the largest age rate is 16-40 years. Plants that used by the community about 103 kinds, and can be differentiated into eleven groups of functions, namely medicinal plants (47 kinds), ornamental (11 kinds), aromatic (7 kinds), food (40 kinds), fodder (7 kinds), botanical pesticides (4 kinds), dyes and tannins (2 kinds), firewood (10 kinds), ceremonies (13 kinds), building materials (20 kinds) and also rope materials, wicker and crafts (6 kinds). Community around TNGM has a level of interaction with Merapi volcano which close enough. This can be seen from the social and cultural developing. The suggestion needs to be done from this study results is further development of the useful plants utilization in order to increase the community income around TNGM, especially after Mount Merapi eruption through kinds cultivation based on traditional knowledge of the society.
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Judul: Formulasi Hamilton Untuk Menggambarkan Deformasi Gelombang Soliter Dengan Dasar Tidak Rata Pada Fluida Dua Lapisan
Abstrak: Gelombang internal adalah suatu gelombang yang muncul di bawah permukaan laut sehingga gelombang ini tidak teramati secara kasat mata. Formulasi Hamilton dirumuskan untuk menjelaskan gerak gelombang ini. Dalam hal ini diasumsikan bahwa fluida yang ditinjau terdiri atas dua lapisan dengan masing-masing lapisan memiliki rapat massa yang konstan. Selain itu, diasumsikan pula fluida yang ditinjau berupa fluida tak mampat (incompressible) dan tak kental (invicid). Formulasi Hamilton dilakukan dengan meninjau fluida dua lapisan yang berada pada domain yang dibatasi oleh batas atas yang rata dan batas bawah yang tidak rata. Hamilton (energi total)-nya didefinisikan sebagai penjumlahan antara energi kinetik dan energi potensialnya. Karena energi kinetik tidak secara eksplisit dinyatakan dalam peubah fisis, maka digunakan metode asimtotik untuk menentukan energi totalnya. Dalam hal ini diasumsikan bahwa gelombang interfacial yang ditinjau cukup panjang, dan amplitudo yang cukup kecil. Persamaan Korteweg de- Vries (KdV) diperoleh, jika disumsikan bahwa gelombang interfacial hanya merambat pada satu arah, sedangkan jika gelombang tersebut merambat ke dua arah, diperoleh persamaan Boussinesq.
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