Permeability, Biology

Permeability

Permeability is the ability of a soil to transmit water or air. Permeability or infiltration rate is measured in terms of the rate of water flow through the soil in a given period of time. Sandy soils are highly permeable because water drains rapidly. But soils with relatively small particle sizes are relatively less permeable. For example, water infiltration through a clay soil is extremely slow. This can cause water to accumulate at the surface or within the body of the soil resulting in whter-logging. The amount of moisture capable of percolating completely through the soil is largely dependent upon the permeability of the middle and lower horizons of soil. When either of these is impermeable, the upper layers can quickly become saturated with water, resulting in runoff or lateral movement of water through the soil. Soil erosion is the normal consequence in sloping areas while flat sites may suffer from flooding to various degrees.

Posted Date: 12/11/2012 2:19:39 AM | Location : United States







Related Discussions:- Permeability, Assignment Help, Ask Question on Permeability, Get Answer, Expert's Help, Permeability Discussions

Write discussion on Permeability
Your posts are moderated
Related Questions
Q. Use of Masks as personal protective equipment? Masks are to be worn when procedures that result in aerosol production are performed. Protection from these masks only affords

Fate of the germ layers In cnidarians and ctenophores, all the cell types develop from either ectoderm or endoderm. Similarly all the tissues and organs in the rest of the ani

Hypothetical question. A new biotech company intends to clone the gene encoding the ABA 8-hydroylase enzyme, an important protein regulating plant hormone degradation that control

What are the Elements of Heredity and variations?

How we write assimgment about mycobiology of mycoplasma in detail

What does skin color in man shows?

Q Is the tubular-dorsal nervous system of chordates associated to radial or lateral symmetry? How does that explain the complexity level of the nervous system reached by the verteb

Internal Mammary Artery (1MA) :  This is an excellent graft. When left internal mammary artery (LIMA) is anastomosed to LAD, which has more than 70 per cent block, patency at

why does the removal of the extremity of coleoptile prohibit plant growth?

Rickets Rickets is a complex mineral deficiency disease of young, growing animals. It is characterized by defective mineralization of growing bones, persistence of hypertrophic