Which consequence results when groundwater withdraws from alluvial aquifers?

💡 Explanation

Subsidence increases due to compaction; effective stress rises in dewatered alluvial deposits due to reduced pore pressure, because total stress remains unaffected, creating greater grain contact. Therefore, subsidence amplifies in these regions after major dewatering, rather than porosity increases or bedrock discharges.

• Which mechanism causes reduced water column mixing within a fjord during spring snowmelt?
• Which outcome increases near coastal freshwater streams during regional saltwater intrusion events?
• Which mechanism causes deep-focus earthquakes within a subducting oceanic plate?
• Which mechanism dictates fjord sill depth controlling deep water renewal in a stratified fjord?
• Which outcome occurs when the Earth's rotation weakens gyre circulation?
• Which mechanism primarily deepens fjords during glacial periods?