The Legislature further finds and declares that prior to the preparation of the plan by the Santa Monica Mountains Comprehensive Planning Commission, planning for the zone was fragmented and there were ineffective means of determining and resolving conflicting interjurisdictional values, or of evaluating individual projects within the zone as to their effect on the entire region; that in the absence of a governmental mechanism to perform such evaluations, piecemeal development projects were occurring within the zone which resulted in the irreplaceable loss of open space and recreational resources, in the physical and biological deterioration of air, land, and water systems within the zone, and adversely affected regional life-support systems, including fish and wildlife, therefore being harmful to the needs of the present and future population of the region.