Water potential
Potential energy of water per unit volume relative to pure water in reference conditions; the tendency of water to move from one area to another due to osmosis, gravity, mechanical pressure and matrix effects
Water potential is the potential energy of water per unit volume relative to pure water in reference conditions. Water potential quantifies the tendency of water to move from one area to another due to osmosis, gravity, mechanical pressure and matrix effects such as capillary action (which is caused by surface tension). The concept of water potential has proved useful in understanding and computin... Wikipedia