Tree diversity increases productivity through enhancing structural complexity across mycorrhizal types
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In: Science Advances, Vol. 9, No. 40, eadi2362, 06.10.2023.
Research output: Journal contributions › Journal articles › Research › peer-review
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TY - JOUR
T1 - Tree diversity increases productivity through enhancing structural complexity across mycorrhizal types
AU - Ray, Tama
AU - Delory, Benjamin
AU - Beugnon, Rémy
AU - Bruelheide, Helge
AU - Cesarz, Simone
AU - Eisenhauer, Nico
AU - Ferlian, Olga
AU - Quosh, Julius
AU - von Oheimb, Goddert
AU - Fichtner, Andreas
N1 - Funding Information: We are grateful to A. Koller and L. Georgi for the assistance in data collection and to M. Ehbrecht and K. Friedrich Reich for the suggestions in data analysis. We are also thankful to N. Döring for the technical assistance. This study was supported by the International Research Training Group TreeDì jointly funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) 319936945/GRK2324 and the University of Chinese Academy of Sciences (UCAS). R.B. acknowledges support by the Saxon State Ministry for Science, Culture and Tourism (SMWK), Germany (3-7304/35/6-2021/48880). The Article Processing Charges (APCs) were funded by the joint publication funds of the TU Dresden, including Carl Gustav Carus Faculty of Medicine and the SLUB Dresden, as well as the Open Access Publication Funding of the DFG Publisher Copyright: Copyright © 2023 The Authors, some rights reserved
PY - 2023/10/6
Y1 - 2023/10/6
N2 - Tree species diversity and mycorrhizal associations play a central role for forest productivity, but factors driving positive biodiversity-productivity relationships remain poorly understood. In a biodiversity experiment manipulating tree diversity and mycorrhizal associations, we examined the roles of above- and belowground processes in modulating wood productivity in young temperate tree communities and potential underlying mechanisms. We found that tree species richness, but not mycorrhizal associations, increased forest productivity by enhancing aboveground structural complexity within communities. Structurally complex communities were almost twice as productive as structurally simple stands, particularly when light interception was high. We further demonstrate that overyielding was largely explained by positive net biodiversity effects on structural complexity with functional variation in shade tolerance and taxonomic diversity being key drivers of structural complexity in mixtures. Consideration of stand structural complexity appears to be a crucial element in predicting carbon sequestration in the early successional stages of mixed-species forests.
AB - Tree species diversity and mycorrhizal associations play a central role for forest productivity, but factors driving positive biodiversity-productivity relationships remain poorly understood. In a biodiversity experiment manipulating tree diversity and mycorrhizal associations, we examined the roles of above- and belowground processes in modulating wood productivity in young temperate tree communities and potential underlying mechanisms. We found that tree species richness, but not mycorrhizal associations, increased forest productivity by enhancing aboveground structural complexity within communities. Structurally complex communities were almost twice as productive as structurally simple stands, particularly when light interception was high. We further demonstrate that overyielding was largely explained by positive net biodiversity effects on structural complexity with functional variation in shade tolerance and taxonomic diversity being key drivers of structural complexity in mixtures. Consideration of stand structural complexity appears to be a crucial element in predicting carbon sequestration in the early successional stages of mixed-species forests.
KW - Ecosystems Research
UR - http://www.scopus.com/inward/record.url?scp=85173301488&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/a7e5c70f-bc62-3a8a-a2ef-b8739734ca8b/
U2 - 10.1126/sciadv.adi2362
DO - 10.1126/sciadv.adi2362
M3 - Journal articles
C2 - 37801499
VL - 9
JO - Science Advances
JF - Science Advances
SN - 2375-2548
IS - 40
M1 - eadi2362
ER -