Imagine a root of a cotton plant growing in the upper horizon of an irrigated soil in california's imperial valley. as the root
attempts to draw water molecules from this soil what forces (potentials) must it overcome? if this soil were compacted by a heavy vehicle, which of these forces would be most affected?
A root of a cotton plant must
overcome various potential forces such as gravitational forces that pulls water
downward, matric forces where there is an adhesion of water molecules from a soil and osmotic forces where attracting water in the presence of large amount of soluble salts in the mixture of soil.
If the soil were compacted by
a heavy vehicle, the matric forces would be mostly affected for compaction will
result to increase matric forces due to reduced size of pores of the soil
making it more difficult to draw water from a solid surface.
The transient condition that is being described above is
sports anemia. This occurs when an individual is into aerobic exercise that
will likely cause the individual to have his or her red blood cells to be
diluted in which happens because of the plasma volume of the individual has
been expanded.
