Judul: Analisis kebutuhan ruang terbuka hijau berdasarkan kebutuhan oksigen dan air di Kota Depok, Propinsi Jawa Barat
Abstrak: Perubahan penggunaan lahan dari kawasan bervegetasi menjadi kawasan terbangun mengakibatkan keseimbangan ekologi kota terganggu, salah satunya terhadap kebutuhan oksigen dan ketersediaan air di Kota Depok. Tujuan penelitian ini adalah menentukan luas ruang terbuka hijau berdasarkan kebutuhan oksigen dan ketersediaan air, serta menilai prefernsi masyarakat terhadap prioritas pengembangan pembangunan di Kota Depok. Penelitian ini menggunakan pendekatan perhitungan Gerarkis dan TIM Fahutan IPB. Metoda Analytic Hierarchy Process (AHP) dipergunakan untuk menentukan faktor-faktor pengembangan pembangunan RTH di Kota Depok. Hasil penelitian menunjukkan bahwa Kota Depok saat ini memiliki ruang terbuka hijau (RTH) seluas 5.125,43 ha, dan berdasarkan perhituangn metoda Gerarkis, RTH untuk tahun 2005 sudah tidak mampu lagi memenuhi kebutuhan oksigen bagi manusia, kendaraan bermotor dan hewan ternak, karena luas RTH di Kota Depok seharusnay 6.155,18 ha.
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Judul: Analisis Ruang Terbuka Hijau dan Kecukupannya di Kota Depok
Abstrak: Greenery open space (GOS) is a vegetated open space in urban areas, which its existence is often sacrificed in city development process. This study aims to determine acreage of GOS changes in Depok, to analyze the adequacy of GOS based on population, to identify level of development of the city, to analyze relationship between GOS changes and level of city development, and to identify factors affecting GOS changes. The results showed that in 2006 the GOS in Depok city was 2359.20 ha and 1729.53 ha in 2011 or it was a decline at about 629,67 ha during the period. Based on population number, Depok required 3.627,23 ha of GOS. Scalogram analysis indicated an increase in hierarchy of some subdistricts to level II and level I, and reducing of level III. The greatest changes of GOS occurred in the lower level of hierarchy (Level-III). This is due to limited land available for construction of facilities that are often sacrificed GOS. Determinants factors of GOS changes consisted of positive determinant, including acreage of vacant land, and negative factors, i.e. area allocated for built up in the regional spatial plan and initial acreage of GOS (2006).
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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