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Aspens 'remember' past drought in their leaves, 3-year experiment finds
Publication: Phys.org - latest science and technology news stories
Author: Not available in collected metadata
Source published: 09/10/2026, 20:40:06 UTC
Briefing created: 09/10/2026, 21:13:08 UTC
Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 09/10/2026, 20:55:25 UTC.
Briefings
A University of Utah study reveals aspen trees store drought history in leaf chemistry rather than just tree rings. The 3-year experiment showed that leaves from trees surviving past droughts contained higher concentrations of specific compounds compared to those from trees that did not survive. This suggests aspen leaves act as chemical archives of past environmental stress, potentially allowing future generations to assess past conditions. The research was conducted in a controlled setting where researchers monitored leaf chemistry over three years to identify chemical signatures associated with drought survival.
Key points
- University of Utah biologists conducted a 3-year experiment tracking aspen leaf chemistry to identify chemical signatures associated with drought survival.
- Trees that survived past droughts showed higher concentrations of specific compounds in their leaves compared to trees that did not survive.
Context and limitations
The study was conducted in a controlled setting and does not account for natural variations in tree populations or other environmental factors.
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