Bannister 110

Snapshots of a warmer North from ancient buried wood deposits in subarctic Canada and Alaska

Buried wood in arctic and subarctic North America, preserved in diverse depositional settings, provide glimpses of past landscapes and environmental change. In the Yukon and Alaska, ancient forest remains exposed in mining cuts and river bluffs help us understand how permafrost behaved during persistent warming of the last interglaciation ~125,000 years ago.

Ceci n’est pas un arbre: How to draw a functional tree.

Tree-ring growth is a daily scaled process, where endogenous and environmental components orchestrate wood formation through a series of developmental events that can be monitored studying plant phenology. Recent studies demonstrate that the temporal dynamics of wood formation inferred from phenology monitoring are excellent markers of tree sensitivity to weather and climate fluctuations. Encompassing for acclimation and adaptation components, wood developmental dynamics provide indeed for excellent metrics to predict tree-ring growth and productivity.

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