Judul: Evaluation Of Flood Vulnerability Areas Based Geographic Information System(Gis) In Kapuas Watershed Kapuas Hulu District
Abstrak: Frekuensi kejadian banjir dalam dasawarsa terakhir telah berdampak pada berbagai bidang terutama pertanian dan transportasi. Kondisi topografi wilayah DAS Kapuas Hulu bervariasi dari datar hingga berbukit, dimana topografi datar masih dominan. Tujuan pada penelitian ini untuk mengevaluasi dan memetakan tingkat kerawanan banjir di DAS Kapuas menggunakan pendekatan Sistem Informasi Geografi (SIG) berdasarkan pada periode ulang curah hujan 5, 10, 20, dan 50 tahun. Secara umum, penelitian ini mengevaluasi kerawanan banjir menggunakan pendekatan Sistem Informasi Geografis (SIG). Pendekatan SIG yang digunakan berupa metode overlay (tumpang susun) menggunakan data curah hujan, penggunaan lahan, kemiringan lereng, jenis tanah, buffer sungai, dan topografi. Pada peta curah hujan wilayah DAS Kapuas didominasi oleh curah hujan sedang hingga sangat lebat. Wilayah kajian didominasi oleh jarak 0-15 meter dari bibir sungai yang menandakan bahwa kerawanannya apabila terjadi luapan sangat besar. Wilayah kajian juga didominasi oleh lahan pertanian yang dibagi menjadi lahan pertanian kering dan lahan pertanian kering bercampur yang diberi skor 3, sama halnya dengan lahan terbuka karena memiliki pengaruh yang tinggi terhadap kerawanan banjir. Hasil penelitian ini menunjukkan bahwa terjadi peningkatan kerawanan banjir seiring dengan peningkatan periode ulangnya, dari periode ulang 5 tahun ke 50 tahun terjadi peningkatan kerawanan banjir kategori tinggi sebesar 15,9%.
Keyword: Rainfall, flood susceptibility, return period, GIS, watershed

Judul: Flood Vulnerability Assessment at Various Rainfall Return Periods in the Jeneberang Watershed, South Sulawesi Province
Abstrak: Daerah Aliran Sungai (DAS) Jeneberang merupakan salah satu DAS kritis prioritas nasional di Sulawesi Selatan. Salah satu faktor yang menyebabkan DAS kritis adalah perubahan tutupan lahan dari kawasan hutan menjadi lahan terbangun. Hal ini menyebabkan fungsi DAS menurun ditunjukkan oleh frekuensi kejadian banjir yang sering terjadi. Upaya meminimalisir dampak bencana banjir adalah penyediaan peta kerawanan banjir yang akurat. Penelitian ini dilakukan untuk mengidentifikasi tingkat kerawanan banjir DAS Jeneberang pada berbagai periode ulang curah hujan. Tingkat kerawanan banjir dihitung berdasarkan parameter Topographic Wetness Index (TWI), tutupan lahan, dan periode ulang curah hujan dengan nilai pembobotan berdasarkan Standar Nasional Indonesia yang dimodifikasi yaitu 35%, 35%, dan 30% untuk TWI, tutupan lahan, dan curah hujan secara berurutan. Hasil analisis menunjukkan bahwa tingkat kerawanan banjir berdasarkan parameter curah hujan dengan kelas daerah tidak rawan terdapat di bagian hulu, daerah rawan terdapat di bagian tengah menuju hilir, dan daerah sangat rawan terdapat di area yang dekat dengan jaringan sungai. Daerah rawan banjir DAS Jeneberang berkorelasi tinggi dengan nilai TWI yang tinggi, tutupan lahan didominasi oleh pemukiman dan persawahan, serta curah hujan > 76 mm/hari. Identifikasi kerawanan banjir menggunakan parameter TWI, tutupan lahan, dan periode ulang curah hujan mampu memetakan tingkat kerawanan banjir di DAS Jeneberang dan berdasarkan hasil analisis bahwa ketiga parameter tersebut dapat digunakan untuk memetakan tingkat kerawanan banjir suatu wilayah, tetapi kajian kerawanan banjir yang lebih akurat memerlukan tambahan parameter sesuai dengan faktor yang mempengaruhi kejadian banjir wilayah tersebut., The Jeneberang watershed is categorized as the critical watershed and has become the national priority for restoration in South Sulawesi. The critical condition of watershed was due to the high rate of land use change that converts forest to other uses. This has led to decreased hydrological watershed functions as indicated by frequent flood events. To minimize the impact of flood, the availability of an accurate flood vulnerability map is required. This research aimed to identify the level of flood vulnerability of the Jeneberang watershed at various return periods of rainfall. The flood mapping required information on the Topographic Wetness Index (TWI), land cover, and return period of rainfall, which were weighted based on modified Indonesian Standard National as follows 35%, 35%, and 30% for TWI, land cover, and rainfall consecutively. The results showed that based on rainfall information, the low level of vulnerability was found in upstream area, whereas the vulnerable class was located in the middle downstream and the very vulnerable class was located at adjacent to river networks. Flood vulnerability areas of the Jeneberang watershed were highly correlated with high TWI values, land cover dominated by building area and rice fields, and rainfall > 76 mm/day. The findings reveal that identification of flood vulnerability based on our approach (with parameters TWI, land cover, and return period of rainfall) is able to characterize the level of flood vulnerability. Further, more robust approach by considering other important parameters that influence flood events will improve the prediction of the map of flood vulnerability.
Keyword: flood vulnerability, land cover, rainfall, return period, TWI

Judul: Kandungan Kolesterol dan Vitamin A Ayam Arab yang Diberi Jamu Ternak Melalui Air Minum
Abstrak: Egg as one source of protein needed by the body contains high amount of essential amino acids, however in reality there is a constraint factor in consuming the eggs which is the high level cholesterol in an egg. Nowadays the cholesterol content of eggs is feared by most of the public in relation to its effect. Excess cholesterol can cause health problems, but on the other hand the yolks contain vitamin A which is good for the body. This research was aimed to study the cholesterol and vitamin A content of Arab chicken egg yolks with addition of herbs through drinking water it is expected to reduce the cholesterol level and increase the amount of vitamin A in egg yolks. This experiment was conducted in poultry house in block C of Animal Science Faculty, Bogor Agricultural Institute, it lasted from June to August 2011. Chicken used in this study was 48 arab hens by age 19 weeks. Research procedures include the preparation of cages and equipment, maintenance and provisions of herbal medicine. The design used in this study was a completely randomized design (CRD). The content of cholesterol during 5 weeks of herbal medicine with level of 5 ml per head and 10 ml per head was 535.28 mg/100 g up to 563.51 mg/ 100 g. The addition of herbal medicine for 3 consecutive days (per week) are mixed in hens drinking. The level differences does not affect the content of cholesterol in egg yolk, but the existence of different herbal medicine addition level provides different amount of vitamin A. The content of vitamin A in egg yolks for a treatment P0 (without herbs) amounted to 596.787 μg/ 100 g, P1 (herbs 5 ml/head/day) : 700.034 μg/ 100 g and P2 (10 ml/head/day) : 800.962 μg/ 100 g.
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