grundvandsspejl

Grundvandsspejl refers to the upper surface of the saturated zone in the ground, where the pore spaces in the soil or rock are completely filled with water. This level can fluctuate significantly due to various factors. Natural precipitation is a primary driver, with recharge occurring during wet periods and depletion during dry spells or droughts. Pumping for irrigation, industrial use, or public water supply can also lower the grundvandsspejl, potentially impacting ecosystems and the availability of water for other users. Conversely, periods of heavy rainfall or reduced pumping can lead to a rise in the grundvandsspejl.

The depth of the grundvandsspejl is crucial for understanding groundwater resources and the health of terrestrial ecosystems. When the grundvandsspejl is close to the surface, it can support wetland vegetation and maintain streamflow. A significant drop in the grundvandsspejl can lead to the drying out of soils, wilting of plants, and reduced stream discharge. Monitoring the grundvandsspejl is therefore an important aspect of water management, environmental protection, and agricultural planning in many regions. Changes in the grundvandsspejl can also influence the potential for soil contamination, as a lower water table may allow pollutants to migrate more easily into deeper groundwater reserves. Understanding the dynamics of the grundvandsspejl is essential for sustainable water resource management.