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Hillslopes comprise the greater part of the landscape and as an integral part of drainage basins; they provide water and sediment to water courses. Also, hillslopes are frequently used in agriculture. Soil erosion caused by water is a natural phenomenon, but the negative effects are accentuated by human interventions in the landscape. Soil erosion and nutrient loss are detrimental to agricultural products, food security, and the sustainability of ecosystem functioning. In recent decades, the increased using of che...

The Paper present unconfined groundwater flow and solute transport modeling in water catchments area, Nerau village, using the PMWIN applications. Modeling purpose is to constitute extending pollution zone of aquifers in space and time generated of posible industrial pollution. Knowledge of extending of pollution zone is necessary to settle technical measures to using drinking water systems. The companion software Processing Modflow for Windows (PMWIN) offer a totally integrated simulation system for modeling grou...

Soil erosion is a naturally occurring process on all land. The agents causing soil erosion are water (especially on sloping land) and wind (especially on horizontally land), each contributing a significant amount of soil loss each year. These factors are responsible for about 84% of the global extent of degraded land, making excessive erosion one of the most significant environmental problems worldwide. Soil erosion is a slow process that continues relatively unobserved, or it may occur at an alarming rate causing...

River bed processes include the flow and entrainment, transport and deposition of sediment particles on the river bed. The morphology of alluvial river channels is determinate by complex interaction between of constituent physical processes: flow, sediment transport and river bed deformation. Under natural conditions, rivers tend to achieve a relatively stable combination between different variables that characterize them: liquid flow, solid flow, hydraulic slope of river, sedimentological characteristics of the r...

Study case is situated in Caras Severin County. Every sediment transport model application is different both in terms of time and space scale, study objectives, required accuracy, allocated resources, background of the study team etc. For sediment transport modelling, it is necessary to know the characteristics of the sediment in the river bed. Therefore it is recommended to collect a number of bed sediment grap samples. These samples should be analyzed in terms of grain size distribution.To solve theoretical prob...