What is one environmental concern associated with irrigation?

Water depletion from aquifers is a significant environmental concern associated with irrigation because over-extraction of groundwater can lead to a reduction in water levels in aquifers. This depletion occurs when the rate of water withdrawal exceeds the rate of natural replenishment. As aquifers are vital sources of freshwater for not only agricultural use but also for domestic and industrial needs, their depletion can lead to long-term sustainability issues.

When aquifers are depleted, it can result in a range of negative impacts, such as increased pumping costs, lower water quality, and challenges for surrounding ecosystems that depend on groundwater. Additionally, lower groundwater levels can affect surface water bodies, as they often rely on the consistent flow of groundwater to maintain their levels. Proper management of irrigation practices is crucial to mitigate this concern and promote sustainable water use.