A landscape buffer, consisting of a combination of deciduous trees, conifers, shrubs, berms and, if appropriate, fences or walls in sufficient quantities and sizes to create a year-round screen, shall be provided with a minimum depth of 25 feet between any buildings, parking areas and other public use areas and any commercial or industrial zone district and any public street contiguous with the tract boundary and with a minimum depth of 10 feet between such areas and all other tract boundaries. An enhanced buffer beyond the minimum standard may be required by the Planning Board if it determines that the minimum requirements are not sufficient to provide adequate protection from the adverse impacts of factors external to the development site, including, but not limited to, noise and the visual impact of incompatible land uses.