Vadose Zone Monitoring as a Key to Groundwater Protection
نویسندگان
چکیده
منابع مشابه
Risk 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...
متن کاملNumerical analysis of ̄ow and transport in a combined heterogeneous vadose zone±groundwater system
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 کاملLong-Term Observa ons of Vadose Zone and Groundwater Nitrate Concentra ons under Irrigated Agriculture
290 T demand for higher crop yields and the relatively low cost of N fertilizer per unit of yield increase has resulted in increased NO3–N concentrations in the groundwater, especially in areas with coarse-textured soils and shallow groundwater. An increased level of NO3–N in the groundwater is not a locally confi ned problem, however, as NO3–N from agricultural sources in the Midwest has been ...
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ژورنال
عنوان ژورنال: Frontiers in Water
سال: 2020
ISSN: 2624-9375
DOI: 10.3389/frwa.2020.599569