摘要
The level of water in aquifers depends mostly on precipitation.However,recent research has shown that greater annual rainfall values do not necessarily trigger off an automatic increase in groundwater recharge.The lowering of the water table may result not only from lower precipitation,but also from intensification in evaporation and a decreased natural infiltration capacity of drieddown soil.Also extreme rainfall conditions(such as torrential rain and storms)that occur in mountainous regions may,owing to a rise in surface runoff and decreased infiltration,lead to a lower groundwater recharge.
基金
supported in part by ING contribution 1209/M/ING/11.