(PressDemocrat) - New rules making it tougher to rip up forested hillsides to plant vineyards won qualified approval from the Sonoma County Board of Supervisor Tuesday. The stronger erosion prevention measures were unanimously approved by the five supervisors, but most acknowledged that the process was viewed as frustrating and flawed by many involved. Supervisor Efren Carillo praised the work of staff and the interest groups, but he said the ordinance was “not perfect by any means.”