Judul: Zonasi tingkat kerentanan banjir Kabupaten Bandung menggunakan sistim informasi geografis
Abstrak: Penelitian dilatarbelakangi alasan bahwa bencana banjir menelan korban jiwa dan kerugian terbesar (40%) dari selurub kerugian akibat bencana alam (Kingma, 1990 dalam Asriningrum ef ai, 1998), dan di Kabupaten Bandung banjir hampir setiap tahun teIjadi sebagai akibat dari meluapnya Sungai Citarum,. selain itu zonasi tingkat kerentanan banjir dapat dijadikan masakan bagi pemerintah daerah setempat dalam menyusun perencanaan tata ruang Kabupaten Bandung.
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Judul: Pemanfaatan Sistem Informasi Geografis dalam Pemetaan Daerah Rawan Banjir di Daerah Aliran Sungai Citarum Hulu Kabupaten Bandung.
Abstrak: Banjir merupakan salah satu bencana alam yang sering terjadi setiap tahun di Daerah Aliran Sungai (DAS) Citarum Hulu Kabupaten Bandung. Tujuan penelitian ini adalah mengidentifikasi pengaruh parameter kelerengan lahan, ketinggian tempat, tekstur tanah, tutupan lahan, jarak dari sungai, curah hujan dan kepadatan penduduk terhadap banjir dan memetakan daerah rawan banjir di DAS Citarum Hulu Kabupaten Bandung. Metode yang digunakan untuk menduga daerah rawan banjir menggunakan bantuan aplikasi Sistem Informasi Geografis (SIG). Proses indentifikasi daerah rawan banjir menggunakan metode Complete Mapping Analysis (CMA). Hasil analisis menunjukkan bahwa kepadatan penduduk memiliki pengaruh yang besar terhadap terjadinya banjir di DAS Citarum Hulu Kabupaten Bandung sebesar 30.11% dan ketinggian tempat memiliki pengaruh terhadap banjir yang paling rendah sebesar 6.3 %. Hasil analisis tingkat kerawanan banjir di DAS Citarum Hulu Kabupaten Bandung menunjukkan bahwa daerah yang termasuk dalam kelas sangat rawan sebesar 21063.13 ha, kelas rawan 49642.00 ha dan kelas tidak rawan 62059.14 ha dari total luas DAS Citarum Hulu yang berada di Kabupaten Bandung sebesar 132764.27 ha.
Keyword: banjir, DAS Citarum Hulu Kabupaten Bandung, sistem informasi geografis

Judul: Biological Characteristics of Jatropha curcas Trimonoecious
Abstrak: Physic nut (Jatropha curcas L.) is an original plant from tropical America belonging to the family of Euphorbiaceae and an annual plant of monoecious. Commonly J.curcas have male and female flowers on the same plant. There are currently some J. curcas which have hermaphrodite flowers from monoecious plants, but very rarely. J. curcas with hermaphrodite flowers are classified as andromonoecious type (having hermaphrodite and male in the same plant) and trimonoecious type (having male, female, and hermaphrodite flowers in the plant). Trimonoecious plants with hermaphrodite flowers were tend to perform self-pollination (geitonogamy) and produce a homogenous and high-productivity in next generation. J. curcas plants is difficult in differentiating between monoecious and trimonoecious plants when it seedling, and this is a limiting factor to know development of trimonoecious J. curcas. Trimonoecious J.curcas can be identified after six months of planting, and when it have started flowering. Therefore, the trimonoecious J. curcas biological characteristics needs to be an observation. The trimonoecious trait in J. curcas plants can be identified through several analyses, i.e. the analysis of agronomical characteristics, the chromosomes analysis, the isozyme analysis, and the analysis of pollen viability. The study was conducted in December 2011 - February 2013. The experiments were conducted using the Randomized Complete Block Design for one factor, the J. curcas genotype with 5 replicates. Each unit of the experiment consisted of 5 plants. Aagronomics characteristic analyses were conducted using analysis of variance (ANOVA) followed by the Duncan Multiple Range Test (DMRT) at 5% level. The classification of heritability and Genetic Variation Coefficient (GVC) criteria and relative Phenotypic Variation Coefficient (PVC). The analysis of genetic distance clustering was done using the Minitab 1.5 program clustering method. J. curcas stem trimonoecious characters is the primary branches angle, stem diameter, number of primary and secondary branches have a higher size than monoecious plants. Diameter and thickness fruit flesh origins from monoecious plants larger than fruit from plants trimonoecious. Characteristics of the trimonoecious plants in this study were almost the same with their mother plant. Number chromosomes number of J. curcas plant genotypes have 2n = 22 chromosomes The average length of the trimonoecious plant’s chromosome was longer than the average for monoecious plants. The length of chromosomes can differ among one family, even though the numbers of the chromosomes are similar. Isozymes peroxidase (Rf 0.83) and esterase (Rf 0.20) could be used as markers to differentiate between trimonoecious and monoecious plants. Male flower pollen viability of plant origin trimonoecious have a slower rate of decrease than male flowers monoecious plants. The dendrogram from the cluster analysis results could differentiate between trimonoecious and monoecious plants with a variation coefficient of 27.25.
Keyword: Esterase, peroxidase, pollen viability, trimonoecious