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  Fertile forests produce biomass more efficiently

Vicca, S., Luyssaert, S., Penuelas, J., Campioli, M., Chapin, F. S. I., Ciais, P., et al. (2012). Fertile forests produce biomass more efficiently. Ecology Letters, 15(6), 520-526. doi:10.1111/j.1461-0248.2012.01775.x.

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BGC1644.pdf (Verlagsversion), 210KB
 
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Vicca, S., Autor
Luyssaert, S., Autor
Penuelas, J., Autor
Campioli, M., Autor
Chapin, F. S. Iii, Autor
Ciais, P., Autor
Heinemeyer, A., Autor
Högberg, P., Autor
Kutsch, W. L., Autor
Law, B. E., Autor
Malhi, Y., Autor
Papale, D., Autor
Piao, S.L., Autor
Reichstein, M.1, Autor           
Schulze, E. D.2, Autor           
Janssens, I. A., Autor
Affiliations:
1Research Group Biogeochemical Model-data Integration, Dr. M. Reichstein, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497760              
2Emeritus Group, Prof. E.-D. Schulze, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497756              

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Schlagwörter: biomass production, biomass production efficiency, carbon allocation, global forest database, nutrients, photosynthesis, root symbionts
 Zusammenfassung: Trees with sufficient nutrition are known to allocate carbon preferentially to aboveground plant parts. Our global study of 49 forests revealed an even more fundamental carbon allocation response to nutrient availability: forests with high-nutrient availability use 58 ± 3% (mean ± SE; 17 forests) of their photosynthates for plant biomass production (BP), while forests with low-nutrient availability only convert 42 ± 2% (mean ± SE; 19 forests) of annual photosynthates to biomass. This nutrient effect largely overshadows previously observed differences in carbon allocation patterns among climate zones, forest types and age classes. If forests with low-nutrient availability use 16 ± 4% less of their photosynthates for plant growth, what are these used for? Current knowledge suggests that lower BP per unit photosynthesis in forests with low- versus forests with high-nutrient availability reflects not merely an increase in plant respiration, but likely results from reduced carbon allocation to unaccounted components of net primary production, particularly root symbionts.

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 Datum: 2012
 Publikationsstatus: Erschienen
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 Identifikatoren: DOI: 10.1111/j.1461-0248.2012.01775.x
Anderer: BGC1644
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Titel: Ecology Letters
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Oxford, UK : Blackwell Science
Seiten: - Band / Heft: 15 (6) Artikelnummer: - Start- / Endseite: 520 - 526 Identifikator: CoNE: https://pure.mpg.de/cone/journals/resource/954925625294
ISSN: 1461-023X