Abiotic and biotic drivers of tree trait effects on soil microbial biomass and soil carbon concentration

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • Rémy Beugnon - , Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig, Universität Leipzig, Université de Montpellier (Autor:in)
  • Wensheng Bu - , Jiangxi Agricultural University (Autor:in)
  • Helge Bruelheide - , Martin-Luther-Universität Halle-Wittenberg, Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig (Autor:in)
  • Andréa Davrinche - , Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig, Martin-Luther-Universität Halle-Wittenberg (Autor:in)
  • Jianqing Du - , University of Chinese Academy of Sciences (Autor:in)
  • Sylvia Haider - , Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig, Martin-Luther-Universität Halle-Wittenberg (Autor:in)
  • Matthias Kunz - , Professur für Biodiversität und Naturschutz (Autor:in)
  • Goddert von Oheimb - , Professur für Biodiversität und Naturschutz (Autor:in)
  • Maria Perles-Garcia - , Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig, Martin-Luther-Universität Halle-Wittenberg (Autor:in)
  • Mariem Saadani - , Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig, Martin-Luther-Universität Halle-Wittenberg (Autor:in)
  • Thomas Scholten - , Eberhard Karls Universität Tübingen (Autor:in)
  • Steffen Seitz - , Eberhard Karls Universität Tübingen (Autor:in)
  • Bala Singavarapu - , Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig, Martin-Luther-Universität Halle-Wittenberg, Helmholtz-Zentrum für Umweltforschung (UFZ) (Autor:in)
  • Stefan Trogisch - , Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig, Martin-Luther-Universität Halle-Wittenberg (Autor:in)
  • Yanfen Wang - , University of Chinese Academy of Sciences (Autor:in)
  • Tesfaye Wubet - , Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig, Helmholtz-Zentrum für Umweltforschung (UFZ) (Autor:in)
  • Kai Xue - , University of Chinese Academy of Sciences (Autor:in)
  • Yang Bo - , Jingdezhen University (Autor:in)
  • Simone Cesarz - , Universität Leipzig, Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig (Autor:in)

Abstract

Forests are ecosystems critical to understanding the global carbon budget, due to their carbon sequestration potential in both aboveground and belowground compartments, especially in species-rich forests. Soil carbon sequestration is strongly linked to soil microbial communities, and this link is mediated by the tree community, likely due to modifications of microenvironmental conditions (i.e., biotic conditions, soil properties, and microclimate). We studied soil carbon concentration and the soil microbial biomass of 180 local neighborhoods along a gradient of tree species richness ranging from 1 to 16 tree species per plot in a Chinese subtropical forest experiment (BEF-China). Tree productivity and different tree functional traits were measured at the neighborhood level. We tested the effects of tree productivity, functional trait identity, and dissimilarity on soil carbon concentrations, and their mediation by the soil microbial biomass and microenvironmental conditions. Our analyses showed a strong positive correlation between soil microbial biomass and soil carbon concentrations. In addition, soil carbon concentration increased with tree productivity and tree root diameter, while it decreased with litterfall C:N content. Moreover, tree productivity and tree functional traits (e.g., fungal root association and litterfall C:N ratio) modulated microenvironmental conditions with substantial consequences for soil microbial biomass. We also showed that soil history and topography should be considered in future experiments and tree plantations, as soil carbon concentrations were higher at sites where historical (i.e., at the beginning of the experiment) carbon concentrations were high, themselves being strongly affected by the topography. Altogether, these results implied that the quantification of the different soil carbon pools is critical for understanding microbial community–soil carbon stock relationships and their dependence on tree diversity and microenvironmental conditions.

Details

OriginalspracheEnglisch
Aufsatznummere1563
Seitenumfang20
FachzeitschriftEcological monographs
Jahrgang93
Ausgabenummer2
PublikationsstatusVeröffentlicht - Mai 2023
Peer-Review-StatusJa

Externe IDs

Scopus 85146767977
ORCID /0000-0001-7408-425X/work/146165278
Mendeley 1f58472e-aff6-319b-9a8d-21e411de617c

Schlagworte

Fächergruppen, Lehr- und Forschungsbereiche, Fachgebiete nach Destatis

Schlagwörter

  • BEF-China, biotic conditions, microbial community, microclimate, microenvironment, productivity, root morphology, soil carbon stock, soil quality, subtropical forest, tree diversity, BEF-China, biotic conditions, microbial community, microclimate, microenvironment, productivity, root morphology, soil carbon stock, soil quality, subtropical forest, tree diversity