How tall tundra shrubs reveal the hidden presence of permanently thawed tundra soil
Shrubs and talik create a positive feedback loop, reinforcing the thaw of permafrost and growth of larger shrubs.
Permafrost, ground that is frozen year-round, has a polar opposite: talik, ground that is thawed year-round. And when talik appears in permafrost landscapes, it is both a sign of thaw that has happened in the past and a precursor of thaw in the future.
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