Аннотация:https://ameridendro.ltrr.arizona.edu/conferenceDisplay.py/abstractBook?confId=0
Changing climatic conditions and volcanic activity on the Kamchatka Peninsula have triggered a large
number of devastating volcanic debris flows (lahars), which have the potential to develop considerable reach
and devastate populated areas. While there are complete records of the past decades for volcano eruptions
around the village of Klyuchi, lahars have only been recorded when infrastructure was damaged. In order to
better understand the spatial and temporal dynamics of lahars, we sampled 60 willows (Salix sp.) and 90
larches (Larix gmelini) growing on the foothills of Klyuchevskoy and Shiveluch volcanoes. All sampled trees
show signs of lahar activity, in the form of injuries, burial, tilting or root exposure. Dendrogeomorphic
analysis was complemented by information from satellite imagery to reconstruct the frequency and spatial
patterns of recorded and unrecorded lahars, which was then set into context with volcanic eruptions and
climate data so as to discriminate hot from cold lahars.