ground water betydelse and definition

Exempel på ground water

• The powder identified as calcite in a fracture line of the substratum we believe originated from the penetration of calcareous deposits in ground water.

• The alluvial soils of the study plots are fertile and the ground water level is at 70 cm below the surface.

• The majority (58 %) is produced from ground water or by using artificial ground-water recharge technology.

• The saturation of soil with waste-water led to increasing concentrations of harmful metallic and organic substances thereby impairing the quality of ground water.

• According to the mechanism, the particles in an aquifer are moved by an alternating flow of ground water.

• Gullying leads to rapid lowering of ground water tables.

• Irrigators can also get ground water or contingent water rights, which can be used to fill dams or recharge aquifers.

• The evidence from the raw data therefore points overwhelmingly in favour of piped water supplies as being less contaminated than ground water supplies.