Articles | Volume 23, issue 18
https://doi.org/10.5194/bg-23-6465-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-6465-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
How beech ecophysiology shapes temperate forest gross primary productivity – Part 1: A wavelet-based framework for extracting seasonal dynamics
Jonathan Bitton
CORRESPONDING AUTHOR
Biosystems Dynamics and Exchanges, TERRA Teaching and Research Center, Gembloux Agro-Bio Tech, University of Liege, Gembloux, Belgium
Catherine Charles
Biosystems Dynamics and Exchanges, TERRA Teaching and Research Center, Gembloux Agro-Bio Tech, University of Liege, Gembloux, Belgium
Bernard Longdoz
Biosystems Dynamics and Exchanges, TERRA Teaching and Research Center, Gembloux Agro-Bio Tech, University of Liege, Gembloux, Belgium
Bernard Heinesch
Biosystems Dynamics and Exchanges, TERRA Teaching and Research Center, Gembloux Agro-Bio Tech, University of Liege, Gembloux, Belgium
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We studied 24 years of carbon exchange in a beech forest to understand why its productivity rises, peaks and declines each at different times of the year. We mapped climate effects onto short biological windows and found that stored carbon supports early growth, a one‑week bud formation period can set next year’s peak and bursts of dry air drive mid‑summer drops. Hot summers even raised productivity when water was available. These insights help anticipate forest responses to heat and drought.
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This paper reviews the emission and emission processes of biogenic volatile organic compounds (BVOCs) from various crops and soil under different management practices, highlighting challenges in modeling the emissions and proposing a conceptual model for estimation. The aim of this paper is to present agricultural BVOC data and related mechanistic processes to enhance model accuracy and reduce uncertainties in estimating BVOC emissions from agriculture.
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Short summary
Seasonal changes in forest behavior are often hard to detect in carbon data. We developed a wavelet‑based approach to uncover how three beech forests grow and absorb carbon through seasons. The forests showed distinct spring growth, summer slowdowns and long‑term trends. All forests were carbon sinks with managed forests strengthening over time while the old forest weakened. We show how seasonal dynamics explain long‑term changes and offer a new tool for tracking forest responses to climate.
Seasonal changes in forest behavior are often hard to detect in carbon data. We developed a...
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