Tree diversity regulates soil respiration through elevated tree growth in a microcosm experiment

Tree diversity regulates soil respiration through elevated tree growth in a microcosm experiment

Soil respiration is an essential component of carbon (C) cycling in terrestrial ecosystems. Despite increasing awareness of the significance of aboveground-belowground interactions, little is known about tree diversity effects on soil respiration and the underlying mechanisms. Here, we conducted a 1...

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Veröffentlicht in:Pedobiologia. - 1999. - 65(2017) vom: 01. Nov., Seite 24-28
1. Verfasser: Liu, Mengyun (VerfasserIn)
Weitere Verfasser: Xia, Hanping, Fu, Shenglei, Eisenhauer, Nico
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Pedobiologia
Schlagworte:Journal Article Aboveground-belowground interactions biodiversity-ecosystem functioning carbon dynamics litter decomposition
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520 |a Soil respiration is an essential component of carbon (C) cycling in terrestrial ecosystems. Despite increasing awareness of the significance of aboveground-belowground interactions, little is known about tree diversity effects on soil respiration and the underlying mechanisms. Here, we conducted a 105-days microcosm experiment in a climate chamber to test the effects of tree diversity (1, 2, and 4 species) on soil respiration. We expected tree diversity to affect soil respiration through changes in tree growth and surface litter decomposition (indicated by the litter mass loss). Our results show that soil respiration varied among the four focal tree species and increased with tree species richness. Path analysis revealed tree growth as the main mechanism driving soil respiration and explaining the tree diversity effect in this short-term experiment. Our results indicate that tree diversity and particular tree traits regulate C dynamics through balancing C storage (plant productivity) and C release (soil respiration) 
650 4 |a Journal Article 
650 4 |a Aboveground-belowground interactions 
650 4 |a biodiversity-ecosystem functioning 
650 4 |a carbon dynamics 
650 4 |a litter decomposition 
700 1 |a Xia, Hanping  |e verfasserin  |4 aut 
700 1 |a Fu, Shenglei  |e verfasserin  |4 aut 
700 1 |a Eisenhauer, Nico  |e verfasserin  |4 aut 
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