A year of substantial rainfall has brought needed water to California. But the region's long term problems remain.
beginning this winter, which piped rainfall across the state and dropped more moisture in the form of gargantuan snowpacks in the Sierra Nevada mountains. A cool spring, meanwhile, meant that that mountain snowpack melted only a little at a time, allowing the state’s water managers to capture runoff in reservoirs. As for that little patch of drought in interior SoCal? It just got walloped by rain from Tropical Storm Hilary.
Right now, the full reservoirs have left the state with enough water to make it through one dry year . The most recent drought, however, lasted for not one, but three grueling years. The state has been trying to store some of the excess water underground, diverting flows into fields or shallow ponds, from which water can trickle down and soak the state’s parched underground aquifers.
Jay Lund, a professor of civil and environmental engineering at the University of California Davis and vice director of the school’s center for watershed sciences, says that the water storage efforts likely won’t be enough. Even with this year’s moves to recharge California aquifers, the state is still overdrawing from its underground water supply, particularly due to agricultural irrigation, with deeper and deeper wells diminishing limited underground water.
Belgique Dernières Nouvelles, Belgique Actualités
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