List of Symbols

Symbol description Units
C concentration kg m-3
Cv soil heat storage capacity J m-3 °C-1
d diameter m or cm
D diffusivity (or diffusion coefficient) m2 s-1
Ds diffusion coefficient, of solutes m2 s-1
f porosity or total porosity m3 m-3   or cm3 cm-3   or %
fa porosity, air-filled m3 m-3   or cm3 cm-3   or %
fw porosity, water-filled m3 m-3   or cm3 cm-3   or %
H soil water potential, total KPa or m of water
hg soil water potential, gravimetric KPa or m of water
hm soil water potential, matric KPa or m of water
ho soil water potential, osmotic KPa or m of water
hp soil water potential, pressure KPa or m of water
J diffusion flux (Fick’s law) mg m-2 s-1
K hydraulic conductivity m s-1
Ks hydraulic conductivity, saturated m s-1
M mass kg or g
Mg mass of gas negligible
Ml mass of liquid kg or g
Ms mass of solid kg or g
Mt mass, total kg or g
q flux density
qs flux, solutes kg m-2 s-1
qw flux density, soil water m s-1
R radius m or cm
T temperature °C
t time s
V volume m3  or cm3
Vt volume, total m3  or cm3
Vs volume of solids m3  or cm3
Vl volume of liquid m3  or cm3
Vg volume of gas m3  or cm3
x distance m or cm
z depth m or cm
ρ density kg m-3
ρb dry bulk density kg m-3  or g cm-3
ρp particle density kg m-3  or g cm-3
ρl density of liquid (soil water) kg m-3  or g cm-3
θ soil water content %
θw gravimetric soil water content kg kg-1  or g g-1
θv volumetric soil water content m3 m-3   or  cm3 cm-3
λ thermal conductivity J m-1 s-1 °C-1

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Digging into Canadian Soils by Canadian Society of Soil Science is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License, except where otherwise noted.

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