Agriculture Reference
In-Depth Information
Fig. 9.4 Schematic of solid
and pore space in soil bulk
volume
Pore space
30 - 55 %
(air, water)
Solids
45 - 70 %
(minerals, organic
matter)
Fig. 9.5 Schematic
representation of different
types of water in soil
Dry
Film water
Wilting
point
Plant available water
Field
capacity
Drainable water
Wet
9.2.2 Some Relevant Terminologies
9.2.2.1 Void Ratio ( e )
It is defined as the ratio of the volume of voids or pore spaces ( V p ) to the volume of
solid particles ( V s ). That is, void ratio,
V p
V s
It represents the proportionate amount of pore volume and solid volume.
e
=
 
 
 
Search WWH ::




Custom Search