|
|
Interactions between vegetation and. re have the potential to overshadow direct effects of climate change on. re regimes in boreal forests of North America. We develop methods to compare sediment-charcoal records with. re regimes simulated by an ecological model, ALFRESCO (Alaskan Frame-based Ecosystem Code) and apply these methods to evaluate potential causes of a mid-Holocene. re-regime shift in boreal forests of the south-central Brooks Range, Alaska, USA. Fire-return intervals (FRIs, number of years between. res) are estimated over the past 7000 calibrated C-14 years (7-0 kyr BP [before present]) from short-term variations in charcoal accumulation rates (CHARs) at three lakes, and an index of area burned is...
|
|