Long‐term assessment of macro‐ and micronutrients in foliage of European beech (Fagus sylvatica L.) in thinned versus unmanaged old‐growth stands

Author:

Borys Alexander1ORCID,Wieczorek Barbara2ORCID,Nicke Anka3,Walstab Jutta4ORCID

Affiliation:

1. Martin‐Luther‐Universität Halle‐Wittenberg Naturwissenschaftliche Fakultät III ‐ Institut für Agrar‐ und Ernährungswissenschaften Halle (Saale) Germany

2. Ernst‐Abbe‐Hochschule Jena Jena Germany

3. University of Applied Sciences Erfurt Erfurt Germany

4. Theodor‐Hagen‐Weg 16 Weimar Germany

Abstract

AbstractBackgroundScience‐based decisions regarding forest management require the knowledge of the impact of thinning regimens on the forests’ vitality and resilience. There is no systematic study analysing the role of forest management approaches on the nutritional status of forests, serving as a surrogate for their health and growth.AimsWe assessed the impact of ‘heavy thinning from above’ versus ‘no management’ on the foliar chemistry of old‐growth European beech stands on a calcareous site with cambisol/chromic luvisol soil in Thuringia, Germany.MethodsMacro‐ and micronutrients were analysed by serial foliar analysis of six trees per experimental plot over 13 years (2009–2021). To assess potential differences of foliar chemistry between the two plots and over time, a linear mixed‐effects model was applied.ResultsFoliar concentrations of all macro‐ and micronutrients were not significantly different between the two plots (p > 0.05), demonstrating that the management approach had no relevant impact on the nutritional status of beech trees growing at the calcareous site. Furthermore, all foliar concentrations were dynamic over the 13‐year evaluation period. Hence, long‐term forest monitoring is crucial to capture the complex interplay between the trees and environmental conditions.ConclusionsSerial foliar analysis allows for a reliable evaluation of a forest's nutritional status. The results indicate that either regimen, that is, ‘heavy thinning from above’ or ‘no management’, shall not pose any risk in terms of growth and stability. Our results add to the understanding of beech forest dynamics and may provide a further piece for science‐based strategies of sustainable forest management.

Publisher

Wiley

Reference37 articles.

1. From sink to source: changing climate and disturbance regimes could tip the 21st century carbon balance of an unmanaged mountain forest landscape

2. Interactions between forest stands and microclimate: Ecophysiological aspects and consequences for silviculture

3. Carbon storage in beech stands depending on forest management regime and climate change;Borys A.;German Journal of Forest Research,2013

4. The impact of climate change under different thinning regimes on carbon sequestration in a German forest district

5. Nutritional status of old‐growth European beech (Fagus sylvatica L.) stands on calcareous versus acidic sites—Long‐term results of serial foliar analysis from 2009 to 2021;Borys A.;German Journal of Forest Research,2024

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