Judul: Impact of private land rehabilitation fund on income and regional economy in garut district
Abstrak: The District of Garut, West Java Province, had 69 115 hectares of unproductive and critical private lands in the year of 2006. The private land rehabilitation activitiy has been implemented every year eventhough its rehabilitation rate is even lower compared to the rate of such critical land formation. During the period of 1995-2004, about 4 200 hectares of critical lands had been formed every year. On the other side, the average of land rehabilitation financed by the government were only 2 500 to 3 500 hectares. Improvements on the process of provision and chanelling of government funds have been done in order to have an effective private land rehabilitation in accordance with the objectives.The farmer productivity improvements, provision of economic benefit to the owner of lands, and regional economy support are the private land rehabilitation objectives. This study was intended to answer the question: How to improve knowledg e and perception on private land rehabilitation program assisted by the government funds in order to have a change towards land productivity improvement a nd provide an optimal economic benefit to the owner of lands. The analysis tools for this study were Social Accounting Matrix, Structural Equation Model, and Benefit Cost Analysis.
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Judul: Analisis Ekonomi Sumberdaya Lahan Usahatani Padi Sawah untuk Mendukung Pertanian Pangan Berkelanjutan di Kabupaten Garut
Abstrak: The main objective of this research is to develop sustainable rice farming systems in Kabupaten Garut based on land capability. Each farming system has different input-output structures. The study showed that 57,91% of total paddy area was conducted on unsuitable land. Such a system needs higher inputs and influences the farmers’ income. The efficiency report showed different results based on the applied approach, either constant return to scale (CRS) or variable return to scale (VRS). The average efficiency score of rice farming systems using VRS approach was higher than using CRS approach for both land capabilities, i.e. 72-83%. This score range means that technically those farming systems had excess capacity between 17-28%. Land productivity change of rice farming system estimated by monetary valuation showed that on suitable land occurred appreciation, while on unsuitable one occurred depreciation. The result of feasibility analysis showed that the rice farming system on suitable land was feasible to be conducted, while on unsuitable one was unfeasible. The value of producer surplus of rice farming system on suitable land was higher than on unsuitable one. The result of optimization analysis showed that there were some areas in 7 sub-districts better not to produce rice since inefficient to be carried out, i.e. Kecamatan Kadungora, Pameungpeuk, Samarang, Banjarwangi, Cisewu, Talegong and Cikelet.
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Judul: Pembuatan Film Tipis Lithium Niobat (LiNbO3) Menggunakan Metode Chemical Solution Deposition (CSD) dengan Variasi Kecepatan Putar (Rpm).
Abstrak: Film tipis merupakan salah satu aspek yang mendapat perhatian sangat besar dalam bidang material, karena film tipis merupakan material menarik yang memiliki sifat optik yang sangat tergantung pada konstanta dielektrik, indeks bias, dan energi gap. Lithium Niobat (LiNbO3 ) dapat digunakan sebagai pelapis pada film tipis karena memiliki sifat piezoelektrik, electrooptical, pyroelectrical dan photorefractive yang sangat baik. Film tipis Lithium Niobat (LiNbO3 ) ditumbuhkan menggunakan metode Chemical Solution Deposition (CSD) dengan variasi kecepatan 3500 rpm, 5000 rpm, 6500 rpm, dan 8000 rpm. Metode ini memiliki keunggulan dapat mengontrol stokiometri film tipis dengan kualitas yang baik, prosedur yang mudah dan membutukan biaya yang relatif murah. Energi band gap yang dihasilkan dari film tipis Lithium Niobat (LiNbO3) berkisar antara rentang 2.1 eV – 2.8 eV dengan indeks bias berada pada rentang 2.18-3.2. Film tipis LiNbO3 memiliki parameter kisi a=b=5.54Ǻ dan c = 16.35 Ǻ. Struktur morfologi film tipis adalah permukaan yang homogen dan ukuran kristal berada pada rentang 0.417 μm – 0.680 μm.
Keyword: film tipis, sifat optik, litium niobat, chemical solution deposition, kecepatan putar