Judul: Analisis Kapasitas Simpan Air di Wilayah Kampus IPB Dramaga, Bogor
Abstrak: Bogor Agricultural University (IPB) stage III physical development is being implemented since 2011. Water balance analysis provided an actual description of water storage capacity and its impact on the environmental carrying capacity. The objectives of the study were (1) to analyze status of environmental carrying capacity based on agroclimate zone and to analyze water supply potential, (2) to analyze water storage capacity and (3) land use planning. The research was started since Febuary until June 2012. The research was conducted using climate data and land cover map that processed with Microsoft Excel, CROPWAT 8.0 and ARCGIS 9.3 software. The ratio of water availability and water demand was 0.9 hence the environmental carrying capacity based on water balance was overshoot. IPB Campus agroclimate zone was A1 based on Oldeman classification. The water footprint was 7,9 x 106 m3/year. The region was divided into 14 catchment area (CA). The biggest storage capacity was 235.78 mm/year on CA 11 and the smallest storage capacity was on CA 9a with only 109.51 mm/year. The objectives of land-use planning was to increase water storage capacity. IPB campus as green campus was recommended to improve groundwater recharge and to reach ratio of ground water recharge and surface run-off of 65:35. According to this result it was to recommended to increase vegetation area on CA 4, CA 7, CA 9a, CA 9b, CA 9c and CA 12.
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Judul: Rancangan Hidrolika Bangunan Pengendali Limpasan di Wilayah Kampus IPB Dramaga, Bogor
Abstrak: Bogor Agricultural University (IPB) stage III physical development is being implemented since 2011. Along with those development, the surface run-off was increased. The aim of these research were (1) to determine ECC-based on water balance, (2) to predict run-off (3) to do hydraulics design of runoff control structure. Based on water balance, environmental carrying capacity (ECC) was analysed, while run-off in IPB campus Dramaga was calculated by the rational method. Hydraulics design of run-off control structure was obtained by trial and error. The region can be divided into 14 catchment area (CA). The ratio of water availability and water demand was 0,9 hence the ECC of IPB Campus Dramaga was overshoot. Total discharge runoff to Campus IPB Dramaga was 5.66 m3/s. Discharge run-off in each CA was about 0.05 to 1.45 m3/s. Run-off control structure was needed to collect surfacerun-off hence increase water availability. Considering the topography and landuse, land and water conservation was needed in CA 4 and CA 9. CA 4 was suitable for reservoir which supported with sediment trap and drainage channel. CA 9 needed sediment trap for each inlet of Situ Leutik and bigger drainage holes along the side street.
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Judul: Mitochondrial DNA Gene Organization and Phylogenetic Relationship of Naja siamensis
Abstrak: Naja siamensis is one of Asiatic cobra in the Family of Elapidae, known as a cryptic snake. It has many morphological variations that lead to misidentification. Misidentification can cause the wrong concept in developing antivenom types due to high snakebite cases occur in Thailand. Thus, an accurate species identification using a molecular approach is crucially required. Mitochondrial DNA has been used widely in snake molecular studies. These studies were aimed to determine the arrangement of the N. siamensis partial mitochondrial genes using reptile-oriented primers and to reveal the phylogenetic relationship among other species of Asian cobra. DNA extraction was carried out based on the standard DNA salting-out protocol and was conducted by bioinformatics analysis using BLASTn and MEGA 6 software. Gene annotation was performed against N. kaouthia complete genome. A total of 3121 bp of N. siamensis mtDNA genes were sequenced consisting of partial of six regions: 16S rRNA, ND1, tRNA-Ile, CRII region, tRNA-Leu, tRNA-Gln, and COI genes. The mtDNA gene organization of N. siamensis was predicted to has a similar pattern with the common Elapidae mtDNA gene organization. This study showed that there is a monophyletic form in Naja genus and N. kaouthia is the closest species with N. siamensis based on partial 16S rRNA and ND1 gene.
Keyword: 16S rRNA, Elapidae, ND1, phylogenetic relationship