Shifts in leaf senescence across the Northern Hemisphere in response to seasonal warming
Chen, L.; Rossi, S.; G. Smith, N.; Liu, J.
Show abstract
Shifts in plant phenology under ongoing warming affect global vegetation dynamics and carbon assimilation of the biomes. The response of leaf senescence to climate is crucial for predicting changes in the physiological processes of trees at ecosystem scale. We used long-term ground observations, phenological metrics derived from PhenoCam, and satellite imagery of the Northern Hemisphere to show that the timings of leaf senescence can advance or delay in case of warming occurring at the beginning (before June) or during (after June) the main growing season, respectively. Flux data demonstrated that net photosynthetic carbon assimilation converted from positive to negative at the end of June. These findings suggest that leaf senescence is driven by carbon assimilation and nutrient resorption at different growth stages of leaves. Our results provide new insights into understanding and modelling autumn phenology and carbon cycling under warming scenarios.
Matching journals
The top 4 journals account for 50% of the predicted probability mass.
Similar papers in this journal
Similar papers in this journal
Similar papers in this journal
- Metabolism is a major driver of hydrogen isotope fractionation recorded in tree-ring glucose of Pinus nigra 92%
- Evidence for efficient non-evaporative leaf-to-air heat dissipation in a pine forest under drought conditions 92%
- The 3D construction of leaves is coordinated with water use efficiency in conifers 92%
"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.