Total potential |
L²T² |
erg g¹, joule kg¹ |
Osmotic potential |
O |
L²T² |
erg g¹, joule kg¹ |
Gravitational potential |
Z |
L²T² |
erg g¹, joule kg¹ |
Matric potential |
M |
L²T² |
erg g¹, joule kg¹ |
Soil water pressure |
- |
ML¹T² |
dyne cm², bar, cm water, cm Hg |
Osmotic pressure |
- |
ML¹T¹ |
dyne cm², bar, cm water, cm Hg |
Total pressure |
- |
ML¹T² |
dyne cm², bar, cm water, cm Hg |
Hydraulic head |
H |
L |
cm, m |
Hydraulic potential |
Ø |
L²T² |
erg g¹, joule kg¹ |
Water content |
w |
- |
cm³ cm³, g g¹ |
Differential water capacity |
C |
M¹LT² |
cm² dyne¹, bar¹ |
Hydraulic conductivity |
K |
(b) |
(b) |
Permeability |
k |
L² |
cm², Darcy |
Soilwater diffusivity |
D |
L²T¹ |
cm²sec¹ |