Judul: Application of Soil conservation Services (SCS) Model to Predict Surface Runoff in Oil Palm Plantation Afdeling III, Business Unit of rejosari, PTPN VII South of Lampung.
Abstrak: Surface runoff or overland flow is the portion of rainfall which is not absorbed by the soil and is not accumulated on soil surface, but runs down-slope and collects in gullies and streams ( Hillel, 1997). Unproportionaly of surface runoff especially in rainy season can cause water loss quickly. Surface runoff volume can be predicted by using Soil Concervation Services (SCS) model. The objectives of this research is to predict surface runoff volume using Soil Conservation Services (SCS) model and to compare it with the measured ones. The research was carried out at Oil Palm Plantation of Afdeling III, Management Unit of Rejosari, PTPN VII South of Lampung. Main activities of the research consist of (a) identifications of hidrology soil grouph (HSG), (b) estimation of land cover and antecedent moisture condition (AMC), (c) delineation of microcatchment, (d) measurement of surface runoff in microcatchment outlet, and (e) predicting of surface runoff using SCS and PCRaster models. Soil Conservation Services (SCS) model can be used to predicted surface runoff. Model performance is quite well, which showed by determination coefficient and Root Mean Square Error (RMS-E) are 0.54 (R2) and 9.37 (RMS- E) respectively. Maximum surface runoff volume both measured (61.45 mm) and predicted (32.82 mm) were obtained on March 10th 2008 with rainfall 101.85 mm. While minimum value on April 4th 2006 with surface runoff volume measured, a predicted and rainfall were 0.08, 0.32 and 17.36 mm
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Judul: Evapotranspiration Modelling for Oil Palm Plantation Using Soil and Water Assesment Tool (SWAT) (Case Study: PTPN VI Batanghari)
Abstrak: Ekspansi perkebunan kelapa sawit di Indonesia meningkat pesat, salah satunya di Kabupaten Batanghari Provinsi Jambi-Indonesia, PT Perkebunanan Nusantara VI Batanghari. Wilayah di sekitar pertanaman kelapa sawit mengalami permasalahan air terutama pada musim kemarau. Hal tersebut dikarenakan perubahan fungsi lahan dari ekosistem alamiah menjadi pertanaman kelapa sawit. Di samping itu, ketersediaan sumberdaya air dimanfaatkan oleh masyarakat baik untuk kebutuhan rumah tangga maupun ekonomi. Oleh karena itu penting untuk mengetahui perpindahan air dari suatu tempat ke tempat lainnya untuk memudahkan pengelolaan air. Penelitian ini bertujuan menganalisis fluks uap air meliputi evapotranspirasi, serta mendapatkan nilai aliran, dan penyimpanan air di pertanaman kelapa sawiit. Penelitian fluks uap air ini menggunakan SWAT (Soil and Water Assesment Tool) dalam permodelannya serta divalidasi dengan teknik EC (Eddy Covariance). Hasil dari permodelan tersebut berupa grafik debit aliran, dan evapotranspirasi (ET)., The expansion of oil palm plantations in Indonesia is increasing rapidly, included in Batanghari Regency, Jambi Province Indonesia. PT Perkebunan Nusantara VI Batanghari as the study area is entirely oil palm plantation. Areas around oil palm plantations experience water problems, especially during the dry season. It is due to landuse changes from natural ecosystems to oil palm plantations. In addition, the availability of water resources is utilized by the community for both household and economic needs. Evapotranspiration plays an important role in determining plant water requirements, climate patterns, and water management. This study aims to analyze water vapor fluxes including evapotranspiration, as well as to obtain discharge flow and water storage in oil palm plantations. The software used to assist the modeling is SWAT (Soil and Water Assessment Tool) in the modeling and validated by the EC (Eddy Covariance) technique. The results of the modeling are in the form of discharge graphs, and evapotranspiration (ET).
Keyword: Water Flux, Water Balance, SWAT, Model Simulation

Judul: Embriogenesis ikan buta (Astyanax fasciatus)
Abstrak: Ikan buta Astyanax fasciatus adalah spesies ikan unik dari famili Characidae yang menempati perairan dalam gua di Wilayah La Cueva Chica-San Luis Potasi-Mexico. Ikan ini memiliki mata yang tereduksi (Blind Cavefish) dan warna kulit merah muda, pucat serta mengkilap.
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