Judul: Pendugaan Biomassa dan Karbon Tegakan Pinus (Pinus merkusii) pada Pola Tanam Agroforestri dan Non Agroforestri di KPH Malang.
Abstrak: Ekosistem hutan menjadi peran penting sebagai penyedia jasa ekosistem pengaturan iklim melalui penyerapan dan penyimpanan. Hutan memiliki kemampuan menyerap CO2 dari atmosfer melalui fotosintesis, mengubahnya menjadi biomassa atau menyimpannya menjadi bahan organik tanah yang stabil. Tujuan penelitian mengetahui dan menduga biomassa, cadangan karbon dan serapan CO2 pada berbagai kelas umur di lahan agroforestri dan non agroforestri di RPH Wagir, KPH Malang. Metode yang digunakan dalam pengambilan data, menggunakan stratified sampling dengan plot lingkaran berukuran 0,04 ha untuk KU IV dan plot berukuran 0,1 ha untuk KU V dan KU VI, metode alometrik dengan mempertimbangkan kesamaan kondisi tempat tumbuh tegakan. Hasil pendugaan pada tegakan pinus (Pinus merkusii) non agroforestri didapatkan nilai pedugaan biomassa 337,15 ton/ha dengan selang bagi rata-rata populasi yaitu 312,63 ton/ha sampai 361,67 ton/ha, simpanan karbon sebesar 158,46 ton/ha. Nilai pendugaan nilai tegakan pola Agroforestri didapatkan biomassa 329,24 ton/ha dengan selang bagi rata-rata populasi yaitu 304,45 ton/ha sampai 354,02 ton/ha, simpanan karbon sebesar 154,74 ton/ha.
Keyword: agroforestry, biomass, carbon, Pinus merkusii

Judul: Pendugaan potensi simpanan karbon pada tegakan Pinus (Pinus merkusii Jungh. et de Vriese) di KPH Cianjur, Perum Perhutani Unit III Jawa Barat dan Banten
Abstrak: Global warming is one of the major environmental issues that currently concern to the various parties. Because of global warming, increasing in average temperature of earth's sea and land caused by industrial activity and reduction of forest cover due to deforestation, especially lately. Based on these evolving issues and considering the importance of the role of forests in absorbing carbon from the air and store it in forest biomass, it is necessary a lot of research that could encourage the continued development of carbon in biomass. One important aspect of research is to know the potential of carbon stored in the stands of pine. The experiment was conducted in KPH Cianjur, Perum Perhutani Unit III West Java and Banten in April 2010 to May 2010. Materials used in this research were planting stands of pine in 1994 on square 27A RPH West Hanjawar BKPH South Sukanagara and planted stands of Pine year 1995 on square 48I RPH East Hanjawar BKPH North Sukanagara in KPH Cianjur, Perum Perhutani Unit III West Java and Banten. The tools used in this study include scales, digital scales, ovens, machete, newsprint, chalk, plastic bags, plastic rope, stationery, tally sheets, calculator, tape measure, camera, and software SAS. In the area of stands are made each 5 plots with a size of 20 m x 20 m to measure the trees and also made small plots measuring 2 m x 2 m by 4 pieces located at each corner for analysis and retrieval of vegetation and litter. Results obtained from these data are processed through the approach of biomass which is then converted to carbon savings in ton/ha. To know the factors that influence the use of carbon deposits by using ANOVA analysis and Duncan Multiple Range Test (DMRT). The results showed that the potential of carbon storage on plots planted in 1995 is 77,1580 ton/ha greater than the potential carbon storage on plots planted in 1994 which only amounted to 64,6372 ton/ha. The test results using ANOVA statistical analysis showed the value of R-Sq = 96,01% and significant level 5%, there is a difference between the carbon potential on one of the object variabel (tree, manure, below plant) which is found on the stands of pine planted in 1994 and stands pine planting in 1995, where the variable is a tree. There needs to be further research on the estimation of carbon stock potential using a different method of harvesting method with the same kind of pine stands.
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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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