G is the gain factor t is the surface tension of soil water Eosm is the osmotic efficiency coefficient Posm is the osmotic potential
Mw is the molecular weight of water (0.018015 kg mol-1); R is the universal gas constant (8.314 J mol-1 K-1); T is the soil temperature (°K)
The following equation can suggested when reconsidering the salinity effects on the surface tension (Hamdy, A. and Choukr-allah, R. 2002):
Cmoi/kg and Ckg/kg are respectively the concentration in mol kg-1 and Kg Kg-1, Msait is the molecular weight of a soluble salt (=0.05844 kg mol-1 for NaCl)
Was this article helpful?