We are studying treeline, the ecotone between taiga (boreal forest) and tundra. What is the impact of climate change on treeline?


We are researching spruce forests at treeline in Alaska. During the 1998 field season, we visited 3 major areas of the state, shown with green arrows. See below for details.


We are learning how treeline forests respond to changes in climate by coring trees, examining plant parts in soil samples, and planting seedlings under experimental greenhouses in the tundra.

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