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  Functional diversity of leaf nitrogen concentrations drives grassland carbon fluxes

Milcu, A., Roscher, C., Bachmann, D., Gockele, A., Guderle, M., Landais, D., et al. (2014). Functional diversity of leaf nitrogen concentrations drives grassland carbon fluxes. Ecology Letters, 17(4), 435-444. doi:10.1111/ele.12243.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0018-0C66-F Version Permalink: https://hdl.handle.net/21.11116/0000-000A-430D-D
Genre: Journal Article

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BGC1994.pdf (Publisher version), 673KB
 
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BGC1994s1.pdf (Supplementary material), 2MB
 
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 Creators:
Milcu, A., Author
Roscher, C., Author
Bachmann, D., Author
Gockele, A., Author
Guderle, Marcus1, Author           
Landais, D., Author
Piel, C., Author
Escpape, C., Author
Devidal, S., Author
Ravel, O., Author
Buchmann, N., Author
Gessler, A., Author
Gleixner, Gerd2, Author           
Hildebrandt, Antje3, Author           
Roy, J., Author
Affiliations:
1IMPRS International Max Planck Research School for Global Biogeochemical Cycles, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497757              
2Molecular Biogeochemistry Group, Dr. G. Gleixner, Department Biogeochemical Processes, Prof. S. E. Trumbore, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497775              
3FSU Jena Research Group Ecohydrology, Dr. A. Hildebrandt, Max Planck Institute for Biogeochemistry , Max Planck Society, ou_2253648              

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 Abstract: Little is known about the role of plant functional diversity for ecosystem-level carbon (C) fluxes.
To fill this knowledge gap, we translocated monoliths hosting communities with four and 16 sown
species from a long-term grassland biodiversity experiment (‘The Jena Experiment’) into a controlled
environment facility for ecosystem research (Ecotron). This allowed quantifying the effects
of plant diversity on ecosystem C fluxes as well as three parameters of C uptake efficiency (water
and nitrogen use efficiencies and apparent quantum yield). By combining data on ecosystem C
fluxes with vegetation structure and functional trait-based predictors, we found that increasing
plant species and functional diversity led to higher gross and net ecosystem C uptake rates. Path
analyses and light response curves unravelled the diversity of leaf nitrogen concentration in the
canopy as a key functional predictor of C fluxes, either directly or indirectly via LAI and aboveground biomass.

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 Dates: 20142014-03
 Publication Status: Published online
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 Identifiers: Other: BGC1994
DOI: 10.1111/ele.12243
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Title: Ecology Letters
Source Genre: Journal
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Publ. Info: Oxford, UK : Blackwell Science
Pages: - Volume / Issue: 17 (4) Sequence Number: - Start / End Page: 435 - 444 Identifier: ISSN: 1461-023X
CoNE: https://pure.mpg.de/cone/journals/resource/954925625294