Fig. 5. Illustration of the three-dimensional water uptake transformed from the two-dimensional cross-sectional uptake, see Fig. 1a and 5. This transformed uptake pattern is attributed to a wetted circular surface area (A₃), r² = 0.5 m², for a radius of r = 0.40 m. This area is one half of the total area (A₁ = 1 m²) averaged transpiration area, which is a product of the emitter spacing (1 m) and row spacing (1 m). The other marked surface area A₂ = 0.15 m x 0.4 m = 0.06 m².

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