10.5061/DRYAD.86642
Van de Peer, Thomas
Ghent University
Verheyen, Kris
Ghent University
Ponette, Quentin
Université Catholique de Louvain
Setiawan, Nuri Nurlaila
Ghent University
Muys, Bart
KU Leuven
Data from: Overyielding in young tree plantations is driven by local
complementarity and selection effects related to shade tolerance
Dryad
dataset
2018
functional composition
Acer pseudoplatanus
Quercus robur
biodiversity and ecosystem functioning
Pinus sylvestris
biodiversity partitioning
Pseudotsuga menziesii
Tilia cordata
Larix kaempferi
mixed forest
neighborhood diversity
Betula pendula
Quercus petraea
Fagus sylvatica
2018-07-12T00:00:00Z
2018-07-12T00:00:00Z
en
https://doi.org/10.1111/1365-2745.12839
18883 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
1. Overyielding in mixed-species forests has been demonstrated in a vast
body of literature, and the focus of functional biodiversity research is
now shifting towards a mechanistic understanding of these observations. 2.
We explored diversity-productivity relationships (DPRs) at two sites of a
large-scale tree diversity experiment, with benign (Zed) and harsh (Ged)
environmental conditions for plantation establishment. Additive
partitioning methodologies were adopted to detect phenomenological
patterns in the productivity data, and the trait structure of mixed
communities was used to advance insights into compositional effects. 3.
After six years of plantation development, biomass productivity was
significantly higher in mixtures compared to the monocultures of component
species. We observed that processes operated through direct tree-tree
interactions, since the diversity signal disappeared where trees in mixed
stands were surrounded by conspecific neighbors only. This result is
particularly relevant for mixed-species planation systems, as trees are
commonly planted in monospecific patches to simplify the management.
Partitioning unveiled strong selection effects at both plantation sites.
However, at the Ged-site this was caused by competitive dominance of
species with fast young growth whereas at the Zed-site, species with slow
young growth improved their performances but not at the expense of others
(i.e. trait-dependent complementarity). Species tolerance to shading is an
influential trait to predict biodiversity effects, with community-weighted
means in shade tolerance mediating dominance effects (Ged) and functional
diversity in shade tolerance mediating (trait-dependent) complementarity
effects (Zed). 4. Synthesis. This study highlights that biodiversity
effects in young tree plantations could be explained by the functional
composition of mixed communities, with a key role for species levels of
shade tolerance. As contrasting results between plantation sites were
observed, future research should target the context-dependency of DPRs.
Data productivityData from FORBIO biodiversity experiment (Belgium)
including six-years proudctivity data. Please consider the main manuscript
and supporting information for more details about data collection and
processing.Analyses 6y DRYAD.xlsx
Belgium