Define the following: soil-moisture storage, hygroscopic water, wilting point, capillary water, field capacity, gravitational water, soil-moisture recharge, soil porosity, and soil permeability
What will be an ideal response?
Soil moisture storage is the volume of water in the subsurface soil moisture zone accessible to plant roots.
Hygroscropic water is a molecule thin layer of water tightly bound to soil particles. It is unavailable to plants.
Wilting point is the point at which the remaining water in soil is unavailable to plants.
Capillary water is water held in the soil against the force of gravity because of waters surface tension and hydrogen bonding. It is accessible to plants.
Field capacity is the storage capacity of soils, specific to each soil type. It is dictated by the available pore space (i.e. porosity) of the soil type.
Gravitational water is the water surplus in the soil after the soil becomes saturated. This water is unavailable to plants as it percolates downward.
Soil moisture recharge is the infiltration of water, either through precipitation or irrigation, into the soil.
Permeability is a measure of the ability of water or air to flow through the soil
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