Judul: Pemetaan Daerah Resiko Mudah Tercemar dengan Pendekatan Multiatribut dan SIG Di Kawasan Karst Cibodas Sukabumi Selatan
Abstrak: Cibodas Karst Region is a karst area which located in Sukabumi Regency. Geologicaly composed of Cibodas Limestone Formation. In this location, there are karst caves which have many surfaces and underground rivers. Study of soil water potential in karst area was approached by catcment zone studies using localizing the potential groundwater catchment zone. The process of rainwater infiltration into groundwater has a tendency through fracture zones which morphological indication is lineament morphological phenomena such as stream valleys and river flow areas. The lineament delineation can be used to identify and map a karst area based on EPIK factors. The result of lineament pattern identification shows high lineament zone (> 20 /km2) is a dry zone has a function as a catchment area. The result of protective factors calculation shows that Cibodas Karst Area is in highest level of vulnerability (S1) that has area of 17767.6 ha. Highest level vulnerability area in general means is the area of catchment zone karst valley which can be contaminated by the external factors.
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Judul: Water Conservation Planning in the Karst Area of Bukit Cibodas-Bogor and its Surroundings
Abstrak: Kawasan karst memiliki keunikan secara hidrologi sehingga diperlukan upaya konservasi air guna melestarikan kawasan ini. Penelitian ini bertujuan untuk merencanakan upaya konservasi air di kawasan karst baik secara struktural maupun non – struktural. Analisis yang dilakukan meliputi status daya dukung lingkungan, kapasitas simpan air, potensi suplai air, serta perencanaan konservasi air melalui perencanaan tutupan lahan dan bangunan penangkap mata air. Penelitian ini dilakukan di kawasan karst Bukit Cibodas - Bogor. Kawasan karst dan sekitarnya memiliki ketersediaan air dari curah hujan andalan sebesar 14,80 x 10⁶ m³ dengan kapasitas simpan air sebesar 0,98 x 10⁶ m³ (44%). Estimasi jejak ekologi kebutuhan air (water footprint) sebesar 35,38 x 10⁶ m³/tahun. Status daya dukung lingkungan sumberdaya air pada kawasan karst dan sekitarnya yaitu “terlampaui” (overshoot) dengan rasio supply/demand sebesar 0,4. Kapasitas simpan air kawasan karst sebesar 0,98 x 10⁶ m³ dengan potensi debit suplai air sebesar 0,19 m³/detik. Upaya konservasi air pada kawasan karst dan sekitarnya yang dapat dilakukan diantaranya adalah dengan konversi lahan pertambangan dan fasilitasnya menjadi hutan yang berimplikasi terhadap peningkatan kapasitas simpan air sebesar 0,02 x10⁶ m³ (3%) menjadi 1,00 x10⁶ m³. Tipe bangunan penangkap mata air yang disarankan yaitu tipe IA kapasitas 0,02 m3/detik dengan perkiraan biaya sebesar Rp.75.159.000., The karst area is hydrologically unique, so water conservation efforts are needed to preserve this area. This study aims to plan water conservation efforts in karst areas, both structurally and non-structurally. The analysis includes the status of environmental carrying capacity, water storage capacity, water supply potential, and water conservation planning through land cover planning and broncapturing building. This research was conducted in the karst area of Bukit Cibodas - Bogor. The karst area and its surroundings have water availability from reliable rainfall of 14,80 x 10⁶ m with a water storage capacity of 0,98 x 10⁶ m³ (44%). The estimated ecological footprint (water footprint) is 35,38 x 10⁶ m³/year. The status of the environmental carrying capacity in the area is “overshoot” with supply/demand ratio of 0,4. The water storage capacity of the karst area is 0,98 x 10⁶ m³ with a potential discharge of water supply of 0,19 m³/second. Water conservation efforts in the area that can be carried out include converting mining land into forests which has implications for increasing water storage capacity by 0,02 x10⁶ m³ (3%) to 1,00 x10⁶ m³. The recommended type of broncapturing building is IA with capacity 0,02 m3/second an estimated cost Rp. 75.159.000.
Keyword: Conservation, Water, Karst

Judul: Pengaruh Waktu Vaksinasi Avian Influenza Terhadap Performa Ayam Broiler
Abstrak: The study aimed to determine the influence of Avian Influenza (AI) vaccination time in broiler performance. 1500 day old chick (DOC) were divided into five groups which consisted 300 DOC each group. Each group got the same treatment, a thing that distinguished a group to other groups was the AI vaccination’s time program. Each group was treated by AI vaccination on the 1st day, 7th day, 10th day and 14th day, meanwhile the other ones was used as control which was not treated by AI vaccination. The type of vaccine used was inactive vaccine which injected via subcutaneous. Broilers’ body weight, feed consumption and mortality were recorded weekly, collected data were used to calculate the feed conversion ratio (FCR) and index performance (IP) in each treated group. The results of this study showed that broilers’ body weight, mortality rate, FCR and IP in the group which treated by AI vaccination on the 14th days old age had given the better result compared to other groups.
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