Judul: Sustained small scale unit farm forest management in Cikalong District, Tasikmalaya Recidence, West Java Province
Abstrak: Development of small scale forest management units is now becoming a promising business unit to reduce the imbalance between of supply and demand of raw timber industry. The timber production from big companies is decreasing year by year. This study describes a development of small scale management unit of private forest that may produce timber sustainably as well as economically managable. The objective of this study is to determine how wide the smallest scale of a sustainable forest management unit (Small scale sustainable farm forest management unit) were able to contribute to social economic benefits of rural communities.The study was carried out in District Cikalong, Tasikmalaya Regence, West Java Province. Simple random sampling method and simple statistical analysis were used to estimate the standing stock of sengon farm private forests (volume and tree) and non parametric statistical analysis were use to know how the correlation between forest farmer’s motivation with sustained functions of farm forest management.The result shows that the annual yield fluctuatin of three sample districts relatively can be reached after five years and the yield regulation method based on increament and standing stock is suitable to be implementated on the yield regulaton of farm forest. This is due to its simplicity and practically implementable, even though the farmer have no much knowledge on yield regulation, The various of the scale area were depended on the how each farm forest be managed to qualify financially that showed the NPV-value more than one (NPV > 1). Small scale forest of Cikalong district shows that the minimal scale of unit farm forest management Cikalong district based on dusun is 27,02 ha in Dusun Cikalong (Cikalong village), 10,37 ha in Dusun (Tonjongsari village) and 62,82 ha in Dusun (Singkir village). On the otherhand the management of public forest would able to work properly when have formed organizations forest farmer groups led by the forest manager small scale unit (one or two villages) that similar to a forest farmer cooperation, a rule as well as an institution that work effectively to support develovepment community forest. All of the forest management activities were related to the farmer motivation in understanding the purpose of sustainable forest management. The motivation could be explained by four of twelve of the farmer characteristik factors. The result shows that farm forest have no much knowledge on the principles of sustained forest management benefit.
Keyword: sustainable management, small scale unit, farm forest, Forest Management, Cikalong, Tasikmalaya, West Java

Judul: Modeling System in the Context Establishment of The Community Forest Management Unit of Sengon (Paraserianthes falcataria) (Case Studies in the Cikalong Village, Cikalong District, Tasikmalaya Regency, West Java).
Abstrak: Salah satu alternatif pemecahan masalah untuk mengatasi tekanan terhadap sumber daya hutan dan guna memenuhi kebutuhan masyarakat akan bahan baku kayu adalah dengan pembangunan hutan rakyat. Pola penanaman yang digunakan adalah sistem agroforestry. Pengelolaan hutan rakyat yang ideal memungkinkan pemiliknya menerapkan manajemen yang lebih fleksibel dan efektif dalam pengaturan hasil maupun pengawasannya. Penelitian ini bertujuan mempelajari sistem pengelolaan hutan rakyat, menyusun model unit pengelolaan dan mengidentifikasi kelayakan usaha hutan yang ada di Desa Cikalong. Penelitian ini dilaksanakan pada bulan November 2010 sampai Januari 2011 di Desa Cikalong, Kecamatan Cikalong, Kabupaten Tasikmalaya, Jawa Barat. Penelitian ini dilakukan dengan sistem wawancara dan observasi lapang menggunakan teknik purposive sampling terhadap 90 responden yang memiliki lahan hutan rakyat berdasarkan luasan lahannya. Data yang dicari dalam penelitian ini antara lain, data primer meliputi kegiatan pengelolaan hutan rakyat yang dilakukan oleh para petani. Sedangkan data sekunder berasal dari Dinas Kehutanan dan Perkebunan Kabupaten Tasikmalaya. Dalam membangun suatu model diperlukan 5 (lima) tahap yaitu identifikasi isu, tujuan dan batasan, konseptualisasi model, spesifikasi model, evaluasi model dan penggunaan model. Selanjutnya mengidentifikasi kelayakan usaha berdasarkan kriteria nilai NPV (Net Pressent Value), BCR (Benefit Cost Ratio) dan IRR (Internal Rate of Return). Sengon (Parasienthes falcataria) menjadi tanaman pokok petani hutan rakyat di Desa Cikalong. Pengelolaan hutan rakyat meliputi persiapan lahan, penyediaan bibit, penanaman dan pemeliharaan. Dalam pembentukan unit pengelolaan hutan rakyat menggunakan model yang terdiri dari 5 (lima) sub model. Daur yang digunakan dalam model ini adalah 5 tahun. Hasil simulasi model dapat menyerap tenaga kerja sebanyak 10 orang per Ha dan luasan efektif yang diperoleh sebesar 2.800 Ha. Selanjutnya untuk mengetahui kelayakan usaha hutan rakyat dilakukan perhitungan analisis finansial. Nilai NPV (Net Present Value) sebesar Rp 53.413.225.211. Nilai BCR (Benefit Cost Ratio) sebesar 1,2. Nilai IRR (Internal Rate Ratio) sebesar 32,6%.
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Judul: Hydroxyapatite-Chitosan Composite Coating on Stainless Steel 316 to Improve Corrosion Resistance
Abstrak: Metals that were used in bone implantation should have good corrosion resistance that were not easily corroded when implanted into the body. Metal corrosion resistance of stainless steel 316 can be enhanced through the metal coating by hydroxyapatite-chitosan composite with composition ratio of hydroxyapatite (gram) and chitosan 3% (mL) 0.2:0, 0.2:0.1, 0.2:0.5, 0.2:1.0, and 0.2:1.5. Besides improving the corrosion resistance of metal, the presence of chitosan also maintain the position of hydroxyapatite on metal surfaces. Corrosion resistance increases with increasing amount of chitosan added and the best composition of hydroxyapatite-chitosan composite was 0.2:1.0.
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