Table 2 Table of parameters and their sources. : Parameters Information Sources D Water depth Recent piezométric Maps 2007/2008) ANRH-DRC Soumaa. – R Annual Recharge Hydrogéological Studies : – - Mathématical Modèle of Mitidja plain. Binnie & Partners, 1983. - Study of Hydro-agricultural plain of Mitidja,AGR OCOMPLET- ENERGOPROCT.1978. General pattern of water d evelopment of Mitidja plain -vol.IV. Geological and hydrogeologi cal study Alger. -Sir M.Mc Donnalds & partners ltd, WS Atkins & B Algerie 1992. I Impact of the vadose zone Geological maps Geophysical Studies (CGG, ALGEO) Boring Logs (>180) T Topography Topographic Maps (INCT) – S - Soil Types Pedological Studies- documents ANRH. Profiles and Pedological Study of Hydro-agricultural planning of Mitidja pl ain To determine the index ND, we need to consider the listing consideriing its weight, where ND = weight x listing, and this on each mesh. values are given in the two ta bles below. (3 & 4) Table 3 : Parameters and their weight. 4 : Depth Interval s. DRASTIC General Parameters Weight D Water depth 5 – R Annual Recharge 4 – I - Impact of vadose zone 5 T Topography 1 – S - Type of soil 2 By superposition of the grid, which is the mesh of the Mitidja plain, we obtain values of depth index and from there the depth indexes map ND (fig2)
Table 2 : Table of parameters and their sources. Parameters Information Sources D – Water depth Recent piezométric Maps 2007/2008) ANRH-DRC Soumaa. R – Annual Recharge Hydrogéological Studies : - Mathématical Modèle of Mitidja plain. Binnie & Partners, 1983. - Study of Hydro-agricultural plain of Mitidja,AGR OCOMPLET- ENERGOPROCT.1978. General pattern of water d evelopment of Mitidja plain -vol.IV. Geological and hydrogeologi cal study Alger. -Sir M.Mc Donnalds & partners ltd, WS Atkins & B Algerie 1992. I Impact of the vadose zone Geological maps Geophysical Studies (CGG, ALGEO) Boring Logs (>180) T – Topography Topographic Maps (INCT) S - Soil Types Pedological Studies- documents ANRH. Profiles and Pedological Study of Hydro-agricultural planning of Mitidja pl ain To determine the index ND, we need to consider the listing consideriing its weight, where ND = weight x listing, and this on each mesh. values are given in the two ta bles below. (3 & 4) Table 3 : Parameters and their weight. 4 : Depth Interval s. DRASTIC Parameters General Weight D – Water depth 5 R – Annual Recharge 4 I - Impact of vadose zone 5 T – Topography 1 S - Type of soil 2 By superposition of the grid, which is the mesh of the Mitidja plain, we obtain values of depth index and from there the depth indexes map ND (fig2)
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