Geo-spatial Variability of Physiographic Parameters and Landslide Potentiality - Semi-quantitative Approaches for Landslide Assessment and Prediction - page 80

Fig. 2.13 Spatial distribution of soil depth (in meter)
2.3.3 Water Holding Capacity, Pore Space and Volume
Expansion of the Soil (in %)
The capacity to contain water particles by a certain volume of soil mass is called
Water Holding Capacity. The water holding capacity of soil depends on the pres-
ence of impermeable layer below the permeable layer, pore space and solid space of
the soil, sources of water supply and shape of the underlying structure, and grav-
itational force. Pore space in soil consists of that portion of the soil volume not
occupied by solids. The volume of a given soil occupied by air is designated by air
space, air volume, air space porosity, non-capillary porosity and gaseous phase