标题：Ecosystem responses to recent climate change and fire disturbance at northern high
latitudes: observations and model results contrasting northern Eurasia and North
America
摘要：Vegetation composition at high latitudes plays a critical role in the climate and, in turn, is
strongly affected by the climate. The increased frequency of fires expected as a
result of climate warming at high latitudes will feedback positively to further
warming by releasing carbon to the atmosphere, but will also feedback negatively
by increasing the surface albedo. The net effect is complex because the severity
of fire affects the trajectory of both carbon stocks and albedo change following
a fire, and these are likely to differ between high latitude ecosystems in North
America and northern Eurasia. Here we use growth trajectories, productivity
trends and regional carbon fluxes to characterize these fire- and climate-driven
changes.
