bare and stream-scarred limestone and clay hills

bare hill streamscarred limestone clay hills water wind erosion human deforestation opentree formation poor grass stands light forest open woodland thin soil soilerosion outwash wash watererosion ablation scour scouring aeolation deflation arid land retirement windbreak blowing eolian traces clearance devastation destruction subtropics zone dry subtropical region semitropics temperate mountain mount anthropogenic impact influence man disturbed lands meadows