Total water requirements to produce a crop divided by the total quantity of water actually applied to that crop during one growing season.
All water that leaves a hydrologic system. Examples include cultural water demand, phreatophyte use and underflow and baseflow out of the system
A term signifying that more groundwater is being pumped than the amount of water naturally or incidentally recharged to the aquifer.
For a calendar year, an area of land planted with any cool-season grass species that grows over a dormant warm-season grass species during the fall-winter period.
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