This study reveals transient ecological responses of the treeline ecotone to climate change, suggesting significant implications for landscape transformation.
Key Points
Widespread periglaciation features, including permafrost expansion and canopy dieback, were noted during climate cooling.
Winter temperatures in northern Sweden during the 1980s were 3-4 °C lower than in the 1930s, impacting tree regeneration.
The treeline ecotone displayed quick responses in position and structure due to short-term climatic fluctuations.
Pinus sylvestris likely benefits from ongoing climatic and treeline trends, potentially transforming subalpine landscapes.