access areas

access areas

actual crop evapotranspiration ETa active storage areas open for public entry such as golf courses, public and private parks, playgrounds, schoolyards and playing fields, residential landscapes and industrial park landscapes rate of evapotranspiration equal to or smaller than predicted ETcrop as affected by the level of available soil water, salinity, field size or other causes volume of water stored in reservoir between the minimum water level and normal water level rate of evapotranspiration of a disease-free crop growing in a large field (one or more hectares) under optimal soil conditions, including sufficient water and fertilizer and achieving cropping pattern

crop water requirement CWR

full production potential of that crop under the given growing environment; includes water loss through transpiration by the vegetation, and evaporation from the soil surface and wet leaves sequence of different crops grown in regular order on any particular field or fields amount of water used in producing crops which is the sum of evapotranspiration or consumptive use plus seepage and percolation losses