GE CLST M1A Lecture 18: California Water
21 Aug 2017
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Document Summary
Precipitation mostly in the north in the form of winter snow stored in reservoirs in spring and early summer and released throughout the year distributed throughout the state by system of aqueducts. Major impacts of climate change on this supply if less precipitation falls as snow or if the snow melts earlier. To be reduced over the next four years. Ca uses 5. 2 maf (millions of acre-feet) rather than 4. 2 maf. Pressure from other states and federal government to divert agricultural h2o to cities. Historic agreement in oct. 2003 calls for diverting h2o to san diego and reducing total transfer to 4. 2 maf over 14 years. ~ percentage of h2o use in ca for agriculture ~ Urban (industrial and municipal): mostly along coast and in southern. 81% of h2o use (urban and agriculture) Large quantities of h2o evaporated from agricultural land as a result of irrigation practices and choice of rops (rice!)
