Tag

Tree Growth

All articles tagged with #tree growth

climate-change7 days ago•17 min saved

Heat Halts Tree Growth in Summer, Clouding Forests’ Climate Role

A multinational study using point dendrometers and 75 years of data finds that many oaks stop producing woody biomass by mid-summer even as photosynthesis continues, meaning forests may absorb less CO2 than climate models assume. Eastern oaks absorbed 36% of their carbon without growth, California oaks 26%, suggesting a decoupling of growth from photosynthesis under hot, dry conditions. The results could prompt revisions to how forests are represented in climate projections and call for broader testing across species and ecosystems.

via Gizmodo|

#carbon-sequestration #climate-change #drought

science9 months ago•4 min saved

Amazon Trees Grow Larger and More Resilient Amid Rising CO₂ Levels

A new study shows that Amazon rainforest trees are getting fatter due to increased CO2 levels, which enhances their growth and resilience, potentially strengthening their role as a carbon sink despite looming climate threats.

via Live Science|

#amazon-rainforest #carbon-sink #climate-change

environment2 years ago•1 min saved

"Unveiling the Astonishing Survival Strategy of Redwoods"

Ancient redwoods in California have surprised scientists by using stored-up energy to bring damaged buds back to life after the 2020 wildfires. The trees tapped into carbon reserves, using sugars made from sunlight decades earlier, to sustain their growth. This discovery challenges previous knowledge on tree growth and raises hope that redwoods can better survive intense wildfires. However, the extent of their energy depletion remains unknown, which will determine their ability to withstand future wildfires.

via Newser|

#carbon-reserves #environment #redwoods

science2 years ago•3 min saved

Scientists Disprove Leonardo Da Vinci's 'Rule of Trees'

A new study has debunked Leonardo da Vinci's "Rule of Trees," which posited that the thickness of a tree branch or trunk equaled the combined thickness of all the limbs branching off it. Plant scientists have found that this ratio does not hold up on a microscopic level, particularly in relation to the sizing of internal water transport channels. The researchers propose a revised model that suggests vascular channels widen as branches thin towards the tops of trees to maintain water flow, while also economizing carbon usage. The findings could aid in estimating tree biomass and carbon capture, as well as improving our understanding of plant systems and vulnerability to climate change.

via ScienceAlert|

#carbon-capture #leonardo-da-vinci #plant-science