تقدير كفأه مفهوم المياه الافتراضية و تقنيات الجغرافيا المكانية في تحديد فاتورة الاستهلاك المائي للزراعة المروية في حوض الأزرق

Abstract EN

The study aims to use Geospatial Techniques to estimate water consumption in the irrigated agriculture of Azraq Basin in Water year 2016-2017 Through concept virtual water, based on Satellite data from the Landsat 8 satellite Image for August, 2017 and climate data, through the use of the necessary cartographic standards to correct Satellite data, process it and analyze it to produce Digital maps to express the true reality of irrigated agriculture in Azraq Basin in terms of its spatial distribution, types and areas.

The study concluded that the irrigated areas in the Azraq Basin are concentrated in two main regions: (Safawi - East Mafraq) and (Azraq depression), the accumulation of evapotranspiration ΣETo 1338 mm.

The Accumulated Crop Evapotranspiration ΣETc 3414 mm.

Field crops most in need of water among the classified crops each hectare needs 1244 m3 of water.

The Virtual water for crops was as follows: (olive trees 110 m3 /ton, fruit trees 86 m3 /ton, field crops (clover) 27m3 /ton, and summer vegetables 16 m3 /ton).

The study recommends the necessity of using geospatial techniques in studying the spatial and temporal changes of crops in irrigated areas, and adopting the concept of virtual water as a wiser tool for determining the water consumption bill in irrigated agriculture.