Judul: Analysis of Watershed Hydrological Characteristics Using Soil and Water Assessment Tools Model in Cibitung and Cisembung SubwatershedV
Abstrak: Sub sub DAS Cibitung dan Sub sub DAS Cisembung merupakan bagian dari DAS Citarum Hulu yang pengelolaannya perlu diprioritaskan, seperti melalui kegiatan Rehabilitasi Hutan dan Lahan (RHL). Karakteristik hidrologi pada kedua Sub sub DAS digunakan sebagai pendekatan dalam monitoring dan evalusi lebih lanjut. Penelitian ini bertujuan menganalisis karakteristik hidrologi penggunaan lahan eksisting dan setelah penerapan RHL pada kedua Sub sub DAS tersebut. Model Soil and Water Assessment Tools (SWAT) digunakan sebagai penduga karakteristik hidrologi dengan input data DEM, penggunaan lahan, dan data klimatologi. Tahapan penelitian terdiri dari pengumpulan dan analisis data tanah (primer dan sekunder), delineasi DAS, pembentukan HRU, running SWAT kondisi penggunaan lahan eksisting dan skenario RHL. Aliran lateral menjadi penyumbang terbesar terhadap aliran total pada Sub sub DAS Cibitung, sedangkan aliran permukaan menjadi penyumbang terbesar pada Sub sub DAS Cisembung. Aliran permukaan dan hasil sedimen pada Sub sub DAS Cibitung lebih kecil dibandingkan Sub sub DAS Cisembung. Aliran lateral Sub sub DAS Cibitung bernilai lebih besar dibandingkan Sub sub DAS Cisembung. Rata-rata debit aliran pada kedua wilayah bervariasi. Penerapan skenario RHL mampu menurunkan aliran permukaan, menaikkan aliran lateral, mengurangi besarnya fluktuasi debit aliran, dan menurunkan hasil sedimen. Kata kunci: karakteristik hidrologi, model SWAT, rehabilitasi hutan dan lahan, Cibitung and Cisembung Sub-watersheds are part of Upper Citarum watershed which is its management must be prioritized, such as through the forest and land rehabilitation (RHL) activity. The hydrological characteristics of subwatersheds were used as an approach in further monitoring and evaluation. This study aims was to analyze the hydrological characteristics of existing land use and implementation of RHL in the two Sub-watersheds. The Soil and Water Assessment Tools (SWAT) model was used to analyze the hydrological characteristics. The study consisted of collecting and analyzing soil data (primer and secondary sources), watershed delineation, the establishment of HRUs, running SWAT of the existing land use conditions and the RHL scenarios. Lateral flow is the largest contributor to total flow in the Cibitung Sub-watershed, while surface flow is the largest contributor in the Cisembung Sub-watershed. Surface flow and sediment yields in the Cibitung Sub-watershed are smaller than the Cisembung Sub-watershed. The lateral flow of the Cibitung Sub-watershed is greater than the Cisembung Sub-watershed lateral flow. The average streamflow in the two Sub-watersheds varied. The implementation of the RHL scenarios reduce surface flow, increase lateral flow, reduce the magnitude of streamflow fluctuation, and reduce sediment yield. Keywords: forest and land rehabilitation, hydrological characteristics, SWAT. model
Keyword: forest and land rehabilitation, hydrological characteristics, SWAT model

Judul: Analisis Hidrologi di Sub DAS Ciliwung Hulu Menggunakan Model SWAT
Abstrak: The Ciliwung Watershed is one of the area which has a critical condition. It caused by residential increased in upper area. This condition change of hydrologic characteristics such as run off increased and flood risk. It means Ciliwung Watershed management must be improve. SWAT model can applied for watershed management scenario, such as predict run off and water balance. Model validation used daily data from 2001 to 2010 resulted the NSE 0.53 and R2 0.57, it means SWAT model is satisfy to predict hydrological conditions of the Upper Ciliwung Watershed. SWAT model shows by input annual rainfall 3 790.12 mm results run off 38.45% (1 457.38 mm/year), evapotranspiration 22.06% (836.04 mm/year), lateral flow 20.31% (769.92 mm/year), percolation 15.28% (579.02 mm/year), and ground water 3.90% (147.77 mm/year). Applied recharging well scenario at settlement area with the infiltration function similar with forest predict can reduce run off 46.17% (672.93 mm/year).
Keyword: Upper Ciliwung, SWAT model, run off, hydrologic characteristics

Judul: Trichomonas Gallinae Penyebab Trichomonosis Pada Unggas
Abstrak: Trichomonas gallinae adalah protozoa yang bergerak aktof dengan keempat flagella yang mempunyai layar dan pada salah satu sisinya terdapat membran seperti sirip ikan yang berombak. Spesies dari genus Trichomonas ini mempunyai arti penting pada unggas, karena dapat menyebabkan infeksi pada alat pencernaan bagian atas.
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