These forests are also prevalent across the region on a wide variety of soils and landforms. Not all areas are expected to be affected equally, and in general, areas that are north-facing, at higher elevations, or are farther north in the region are expected to undergo less change and may continue to support spruce-fir forest in the future. At the same time, spruce-fir forests that are farther south may have a reduced capacity to cope with future conditions, particularly where past land use or management has already impaired the system.