Screening and buffering. Landscape buffers between residential and commercial areas shall be used to lessen adverse impacts such as noise, fumes, and privacy concerns. Acceptable screening techniques include combinations of vegetated landscaping, landscaping walls, fencing (excluding chain link), and earth berming. When residential uses are adjacent to commercial uses, additional screening treatments shall be required. Generally, the buffer shall include a variety of local plant species, including a mix of deciduous and evergreen trees. Parking, services, and loading/maneuvering areas should be reasonably landscaped and screened from view of adjacent properties and from within the project site.