| Abstract: | Aquifer hydrodynamical properties, hydrogeological tracing, mapping and piezometric monitoring characterised underground flow in calcareous environments. Surface flow study during low-water season showed water supply spatial heterogeneity due to calcareous aquifer anisotropy. It also underlined the role of structure on water transfer and exchanges between aquifers and rivers. By controlling the hydraulic gradient between the streams network and the saturated zone, structure compartmentalisation moderated considerably the role of fracture on underground flow. Several examples of calcareous basins from eastern France were studied. |
