Judul: Karakteristik, potensi dan kontribusi hutan rakyat di wilayah Kabupaten Bogor
Abstrak: Private forest is kind of wood agriculture which do in dry land. Private forest bocome the source for wood industry material, especially on Java area. Private forest now was comercially by the peasant and become the alternative for their income. Simply peasants management becomes the threat for forest suistainability. The objective of this study was to identified the characteristic of private forest agriculture, and to calculate the potential of trees proprierity. Furthermore, the private forests income contribution for peasents finance have also been calculated. This study was conducted by description and corellation analysis. Correlation analysis was using between dry land area and trees proprierity and also private forest income variable. The results shows private forest were held by polyculture and agroforestry system by Sengon (Falcataria moluccana (Miq.) Berneby & Grimes) trees own the highest potential with 562 trees/ha. Peasants in Stratum III (dry land area >0.5 ha) has the highest trees proprierity with 1300 trees/person. Private forests contributing until 10 % from peasants total income. Dry land area has positive correlation with the trees proprierity significant at the 0.01 level and has positive correlation with private forests income significant at the 0.05 level.
Keyword: Bogor Agricultural University (IPB), correlation, forest income, trees proprierity, dry land, Private forest

Judul: Kontribusi Pengelolaan Agroforestri Terhadap Pendapatan Rumah Tangga Petani (Studi Kasus Di Desa Sukaluyu, Kecamatan Nanggung, Kabupaten Bogor, Jawa Barat)
Abstrak: Agroforestry is a land use system which combines woody plants with agricultural crops. Various previous researches concluded that agroforestry can improve the household income of farmers. Sukaluyu Village became one of the villages that make agroforestry as a source of their economy. The research was conducted to provide information regarding the contribution of agroforestry management to the farmer households as well as information about the agroforestry system adopted by local farmers. The results of research showed that farmers implement agroforestry system who combined trees with crops and trees with medicinal plants in which land management with agroforestry systems contribute to farmer household income was 68.60%.
Keyword: revenue, contribution, agroforestry, Bogor Agricultural University (IPB)

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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