Fig. 1 - The ancestral dike built downstream of the Ben Isguen palm grove is functional to stop flood waters and recharge the aquifer. Photo: Farah Hamamouche.
Fig. 2 - The surface and groundwater irrigation network. The channel width is proportional to the water flow. Photo: Farah Hamamouche.
Fig. 3 - Differences in agricultural and irrigation practices between modern extensions and ancient oases that apply the principle of circularity. Source: Saidani et al., 2022.
Fig. 4 - Re-adaptation of dykes in the new agricultural lands aims at recharging groundwater and recovering sediments as organic fertilizer. Photo: Farah Hamamouche.