The location and design of buffers shall consider the use of the portion of the property being screened, the distance between the use and the adjoining property line, differences in elevations, the type of buffer (such as dense planting, existing woods, a wall or fence), buffer height, buffer width and other combinations of man-made and natural features. The buffer shall be designed, planted, graded, landscaped and developed with the general guideline that the closer a use or activity is to a property line, or the more intense the use, the more effective the buffer area must be in obscuring light and vision and reducing noise beyond the lot.