Water that moves horizontally and vertically in soils by the process of capillary action. This water is available for plant use.

Water in the zone of aeration held to soil particles by surface tension of the water molecules for each other and for the soil particles. carbonate conservation depth The water depth below which the calcium carbonate produced in the ocean is completely dissolved. There is no calcium carbonate deposition below this level.

Water held in the smaller pores of a soil, generally at tensions greater than 60 cm of water.

Water held in the tiny spaces between soil particles or between plant cells.

the water that moves around the soil and is available for plant use.

Water in capillary pores influenced by forces that hold water in soils against a tension usually greater than 60cm. Capillary water can move upwards against gravity.

Water that clings in small pores, cracks, and spaces against the pull of gravity, like water held in a sponge.

Water held in the tiny spaces between soil particles or between plant cells.