Solute transport in the vadose zone and groundwater during flash floods
نویسندگان
چکیده
منابع مشابه
An Improved Dual-Permeability Model of Water Flow and Solute Transport in the Vadose Zone
onstrated under field conditions (e.g., Flury, 1996; Jarvis, 2002). We introduce an improved, one-dimensional, non-steady-state dualIn recent years, our knowledge of the mechanisms that permeability model (MACRO 5.1). The model simulates water flow generate and sustain preferential movement of water and solute transport in the vadose zone of structured soils by coupling and solutes has been inc...
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As geographical information systems (GIS) are increasingly being applied to surface and subsurface flow and transport modeling issues, it becomes important to more clearly define potential advantages and achievable objectives with this technology. This chapter describes an integrated conceptual framework for predicting basin-scale solute loading rates through and from the vadose zone. The appro...
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Numerical simulations of water ̄ow and solute transport were used to investigate the eect of the recharge (rain/irrigation) at the soil surface on solute spreading and breakthrough in a realistic, three-dimensional, heterogeneous, vadose zone±groundwater ̄ow system. Results of the analyses suggest that smaller recharge at the soil surface increases the relative variability in the response of t...
متن کاملVadose Zone Processes and Chemical Transport
soils. A natural obstacle to this practice is the accelerated aging of iron and loss of reactivity resulting from O2 Permeable zerovalent iron (Fe0 ) barriers have become an estabin the soil atmosphere. Despite this apparent limitation, lished technology for remediating contaminated ground water. This same technology may be applicable for treating pesticides amenable situations could arise wher...
متن کاملRisk assessment of industrial hydrocarbon release and transport in the vadose zone as it travels to groundwater table: A case study
In this paper, a modeling tool for risk assessment analysis of the movement of hydrocarbon contaminants in the vadose zone and mass flux of contamination release into the groundwater table was developed. Also, advection-diffusion-reaction equations in combination with a three-phase equilibrium state between trapped air, soil humidity, and solid particles of unsaturated soil matrix were numerica...
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ژورنال
عنوان ژورنال: Water Resources Research
سال: 2011
ISSN: 0043-1397
DOI: 10.1029/2011wr010747