Judul: Model Persamaan Alometrik Penduga Biomassa dan Masa Karbon Pohon Di Hutan Alam Tropika Basah (Studi Kasus Di ArealIUPHHK-HA PT Suka Jaya Makmur, Kalimantan Barat)
Abstrak: Global warming is one of green house effect phenomena which cause by increasing the concentrations of greenhouse gases (GHG) emissions in the atmosphere, such as carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFC), perfluorocarbons (PFC), and sulfur hexafluoride (SF6). Forests can absorb CO2 from the air and store in the trees. Tropical natural moist forest is one of the forest types, which can absorb CO2 very well so it has quite high potential carbon stock. This studies was conducted in IUPHHK-HA PT Suka Jaya Makmur, West Kalimantan. The main goal of this study is to get tree biomass and carbon allometric equations of tropical natural moist forest in IUPHHK- HA PT Suka Jaya Makmur. Sampling conducted by purposive sampling. Laboratory analysis of sample materials were done in the Laboratory of wood chemistry, Department of Forest Product, Faculty of Forestry to determine the carbon content in each part of the tree. The best equations was selected based on the highest R2(adj) and the smallest standard deviation (s) value. Estimation of biomass and carbon mass were done on roots, stems, branches, twigs, and leaves of the tree. The results of this study indicate that the carbon content of every part of the trees (roots, main stems, branches, twigs and leaves) are very significant difference. Allometric equations for tree biomass was selected Btot=0.2729D2.53Tbc-0.332, and model allometric equations to estimate potential carbon Ctot=0.1503D2.57Tbc-0.357. The potential of biomass and carbon mass location of each study is 68.35 ton/ha and 41.69 ton/ha.
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Judul: Persamaan Alometrik Biomassa dan Massa Karbon Akar Pohon Hutan Alam Tropika di Areal IUPHHK-HA PT. Suka Jaya Makmur, Kabupaten Ketapang, Provinsi Kalimantan Barat.
Abstrak: Main factor which is considered of global warming is increasing concertration of greenhouse gases (GHG) emissions in the atmosphere. Plants have the ability to absorb CO2 from the atmosphere into useful energy through the process of photosynthesis. This process produces the O2 and energy, and some of the energy stored in the form of biomass. Natural tropical forest is one of the forest type that can absorb CO2 well, so its potential to savings carbon. The goal of this research is to get the allometric equation and tree roots of biomass and carbon mass of natural tropical forest in IUPHHK-HA PT Suka Jaya Makmur areas. Selection of sample trees on each class has been done by a purposive sampling and carbon content analysis of sample materials are conducted in the laboratory of wood chemistry in the totally of forestry, IPB. The best equation of allometric was selected based on the highest R2(adj) and the smallest standard deviation (s). Allometric equation model of tree roots biomass allometric relationship with root diameter, trees highest, and biomass of roots of the tree above the ground are as follows : BA = 0,0162 D2,55, BA = 0,0398 D3,39 T-1,24, BA = 0,1510 BB1,14, BA = 0,9397 BC1,10, BA = 2,5351 BD1,11, BA = 0,0691 BT1,14. Allometric equation model of tree roots carbon mass with diameter, tree height and with carbon mass of tree above ground are as follows : CA = 0,0089 D2,58, CA = 0,0229 D3,47 T-1,31, C = 0,1545 CB1,08, CA = 0,9440 CC1,12, CA = 2,5704 CD1,14, CA = 0,0741 CT1,14. T-student test results of tree roots carbon mass equations of tree roots carbon mass with the mass carbon of parts of the tree above the ground, and equations of tree roots carbon mass with diameter and height of the tree, shows that the results are not different.
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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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