Judul: Estimasi Cadangan Karbon Hutan Akasia melalui Pendekatan Neraca Energi dengan menggunakan Data Citra Landsat-5 TM
Abstrak: Acacia mangium is a fast-growing plant species with its CO2 absorption rate for photosynthesis is higher than other species. Estimation of biomass and carbon accumulation of this fast growing plants was conducted using Landsat-5 TM year 2000 and 2009 on BKPH Parung Panjang KPH Bogor. Estimation of carbon stock of the surface planted by Acacia mangium was conducted by extracting values of the radiation variables reflected by plant canopy and captured by Landsat-5 TM satellite sensors. It was found that NDVI and LAI has positively correlated with a significant correlation coefficient. Biomass and carbon stored in the forest is estimated through estimating LAI using the radiation Beer-Lambert Law. It was found that potential carbon stock of Acacia mangium are 6.05 to 23.33 (ton/ha) and 5.70 to 26.47 (ton/ha) for 2000 and 2009 with a total amount of carbon reserves 57,388 ton and 57,127 ton respectively. It was concluded that the approach are feasible and can be used for other type of canopy cover.
Keyword: Acacia mangium, carbon stock, energy balance

Judul: Model persamaan alometrik biomassa dan massa karbon pohon Akasia mangium (Acacia mangium Willd.): studi kasus pada HTI Akasia mangium di BKPH Parung Panjang, KPH Bogor, Perum Perhutani Unit III Jawa Barat dan Banten
Abstrak: Increasing concentrations of greenhouse gases like carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFC), perfluorocarbons (PFC) and sulfur hexafluoride (SF6) in the atmosphere already have environmental impacts caused by rising air temperature at the earth. Forests can absorb greenhouse gases by way of transforming CO2 from the air to deposit the carbon stored in trees. Acacia mangium is a fast growing tree species having ability to tolerate wide-range soil conditions, which make this spesies attractive for tree planting in critical lands. This research was conducted in Acacia mangium plantation forest at Parung Panjang Sub-District, Bogor District, Perum Perhutani Unit III, West Java and Banten. The objective of this research are (1) to learning the carbon content of tree biomass component, (2) to learning the allometric equation models for biomass and carbon mass estimation and (3) estimating the carbon stocks of Acacia mangium plantation. Selection of sample trees in each diameter class were conducted by purposive sampling, starting from diameter class 0-5 cm to those of 35-40 cm. Laboratory tests were conducted to determine the carbon content of tree biomass component. Selection of the best equation was conducted by using allometric regression based on the highest R2(adj). The results of the case study on Acacia mangium stands, showed that there is a differences in carbon content of tree biomass component (roots, stems, branches, twigs and leaves). The highest carbon mass is in the main stem of the tree, and the lowest is in the leaves. The model of tree biomass allometric equation of Acacia mangium is W = 0,140928 D2,31 and tree carbon mass allometric equation is C = 0,060255 D2,39. Potency of carbon stocks in Acacia mangium plantation forest at Parung Panjang Sub-District was 25,4183 ton/ha.
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Judul: Trichomonas Gallinae Penyebab Trichomonosis Pada Unggas
Abstrak: Trichomonas gallinae adalah protozoa yang bergerak aktof dengan keempat flagella yang mempunyai layar dan pada salah satu sisinya terdapat membran seperti sirip ikan yang berombak. Spesies dari genus Trichomonas ini mempunyai arti penting pada unggas, karena dapat menyebabkan infeksi pada alat pencernaan bagian atas.
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