Judul: Pendugaan Potensi Simpanan Karbon Tegakan Acacia nilotica L. (Willd) ex. Del. di Taman Nasional Baluran Situbondo Jawa Timur
Abstrak: Measurement of the biomass is needed to find out how large the amount of carbon stock in the forest. Accurate information on the forest carbon stock is needed to describe the condition of forest ecosytems. This study aims to determine allometric model biomass and carbon stock of Acacia nilotica at Baluran National Park. This research was using destructive sampling of tree samples.The biomass of sample trees was measured and weighed, after that the equation was made to estimate the potential biomass in the research area according to trees diameter. Based of a simple regression analysis test, the best model for estimating biomass content the A.nilotica is W = 0.484 D1.832. The results shows that tree carbon stock in each density are different. The density consist of closed density 10.00 ton/ha, medium density 12.74 ton/ha, and spare density 12.57 ton/ha. Each density has a different carbon content as influenced by stand density, stand age, and site quality stands
Keyword: Bogor Agricultural University (IPB), destructive sampling, carbon stock, biomass, Acacia nilotica

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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