The Department of Conservation recently released their 2008-2010 California Farmland Conversion Report.  While irrigated farmland in California decreased by more than 168,000 acres, land idling and reversion to dry farming were the largest factors contributing to the irrigated land decreases, with Prime Farmland accounting for 61 percent of the loss.  Additionally, urban development totaled 44,504 acres, the lowest recorded in the Farmland Monitoring and Mapping Programs history.  The California Farmland Conversion Report can be accessed here.