Comparing current and desired ecological conditions at a landscape scale in the Cumberland Plateau and Mountains, USA

Abstract

We applied a landscape conservation approach that quantifies current and desired ecological conditions for 10680 km2 of diverse forests in the Cumberland Plateau and Mountains of Tennessee and Kentucky. In this case study, forest cover was classified using Landsat Enhanced Thematic Mapper (ETM) imagery and evaluated with forest inventory data. Landform forest associations were characterized by combining forest cover, physiographic descriptions of remnant and historical forests, and forest structure and composition from the inventory data. These landform forest associations estimate current forest conditions and, in comparison with a projection of potential natural forest conditions, indicated that upland deciduous forests in the Plateau have the greatest reduction in cover, particularly in small private ownerships. Although of similar species composition, upland deciduous forests in the Plateau also possessed younger stands with smaller trees than observed from potential old-growth conditions. These results provide scientific guidance for transitioning these forests toward desired ecological conditions through regional conservation initiatives.