discussion session no 1 (group six)

At saturation, matric potential = 0 As the soil dries, large pores will empty 1st, water is held within small pores (by capillary) and on thin water films around soil colloids (by adhesion). The drier the soil, the smaller matric potential (i.e. larger –ve); the tighter the soil water is held (higher tension), the lower freedom of movement. Therefore: the soil with the higher matric potential (smaller –ve) in this example – 0,01 m will have the higher water content.

Thank you Maja that helps a ton!