Aspen leaves retain chemical signs of past droughts
A three-year experiment suggests aspen trees may retain chemical traces of previous droughts in their leaves, according to University of Utah biologists. The findings appear to challenge the assumption that trees only record droughts in their growth rings.
This could offer new insights into how trees respond to environmental stress, though the study is limited to aspen and requires further testing.
- institution
- University of Utah
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Methodology of the study
The researchers monitored aspen trees over three years, analyzing leaf chemistry during and after periods of drought.
Limitations noted
The study was conducted on a limited number of trees and may not apply to other species or regions.
Common questions
What does this mean for understanding tree resilience?
It may provide a new way to study how trees adapt to environmental stress, though more research is needed to confirm the findings.
Sources
- Aspens 'remember' past drought in their leaves, 3-year experiment finds Phys.org · phys.org
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