Impervious cover refers to surfaces like pavements and buildings that prevent water from seeping into the ground. It can lead to increased stormwater runoff, which can cause flooding and pollution as it carries debris and chemicals into waterways. Managing impervious cover is important for maintaining healthy water systems and mitigating the impacts of urban development on the environment.
Such soil or rock is 'impervious'.
Factors that affect runoff include the amount and intensity of precipitation, soil type and permeability, slope of the land, land cover (such as impervious surfaces like pavement), and human activities such as urbanization and deforestation. These factors can influence how quickly water flows across the land surface and how much is absorbed into the ground versus becoming runoff.
Slope angle of ground surfaceHydraulic conductivity of soil (higher this value, greater infiltration)Presence of vegetation cover (presence of vegetation reduces infiltration rate)Density of vegetation cover (sometimes referred to as leaf area index - higher this value, lower infiltration)
Erosion can cause significant problems in areas with steep terrain, extensive agricultural activities, deforested land, and inadequate vegetative cover. Coastal regions are also particularly vulnerable to erosion due to wave action and sea level rise. Urban areas with large amounts of impervious surfaces can experience erosion through stormwater runoff.
Subsoil generally contains some water but usually not as much as topsoil. The amount of water in subsoil can vary depending on factors such as soil composition, depth, and the presence of impervious layers.
The lead wall was impervious to radiation. He is impervious to her bad temper.
Impenetrable is a synonym for impervious.
i am impervious to your insults
Wearing her kevlar jacket, Ash was impervious to any bullets fired at her.
The rain poured down, but the impervious roof kept us dry.
I am impervious from bullets and I destroyed the robbers.
Due to his trauma, the man was impervious to pain. The concrete floor was impervious to rain. The center for NORAD is buried under Cheyenne Mountain, and designed to be nearly impervious to nuclear attack.
A garden fish-pond needs an impervious lining.
Not pervious; not admitting of entrance or passage through; as, a substance impervious to water or air.
The book is so well researched it's impervious to criticism.
waterproof
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