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| Hauptseite > Publikationsdatenbank > Relations between tree growth and carbon fluxes in the first decade of ecological forest conversion (Beziehungen zwischen Baumwachstum und Kohlenstoffflüssen im ersten Jahrzehnt eines Waldumbaus) |
| Hauptseite > Publikationsdatenbank > Relations between tree growth and carbon fluxes in the first decade of ecological forest conversion (Beziehungen zwischen Baumwachstum und Kohlenstoffflüssen im ersten Jahrzehnt eines Waldumbaus) |
| Bachelor Thesis | FZJ-2025-01480 |
2024
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Please use a persistent id in citations: doi:10.34734/FZJ-2025-01480
Abstract: Forests play a pivotal role in the global carbon cycle, acting as significant carbon sinks and influencing climate change mitigation strategies. This thesis investigates the relationships between tree growth and carbon fluxes within the ecological forest regeneration site of Eifel National Park over the period from 2016 to 2024. Utilizing eddy covariance measurements and forest inventory data, the study examines the correlations between net ecosystem productivity (NEP) and biomass increments of key forest species, including spruce (Picea abies), rowan (Sorbus aucuparia), and birch (Betula spec.).The findings reveal strong relationships between growing season NEP from April to October and biomass increments for the species studied, indicating that higher NEP rates are consistently associated with greater biomass accumulation. The study demonstrated similar results for annual NEP from September to August and biomass increment. The relationship between biomass increment and NEP also suggests that spruce and rowan have a higher contribution to the NEP footprint than birch trees. Moreover, a higher correlation between the growing season NEP and the biomass increment of the population inside the protected area than for the population outside the protected area was found. Browsing on the trees outside the protected area may have affected the results.It was found that only a small fraction of carbon influx during the growing season - ranging from 2.5 to 3.3 % - was stored in the aboveground biomass of the three studied species. The findings of this work underscore the need for continued investigation. Such research is very important to further improve the understanding of carbon dynamics. Further investigation will help in understanding the complex forest dynamics and carbon allocation patterns in the aboveground biomass formation of the study site.
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