A New Canaan nonprofit organization dedicated to preserving natural open space in the town has hired a Connecticut native and Yale School of Forestry graduate as its new executive director. Aaron Lefland took over the New Canaan Land Trust role on Friday, officials said. As executive director, Lefland will be in charge of the Land Trust’s 70 parcels of land, covering 389 acres. The organization also is seeking accreditation now with the National Land Trust Organization. “I just love being outdoors,” Lefland told NewCanaanite.com.