Early stage litter decomposition across biomes
Through litter decomposition enormous amounts of carbon is emitted to the atmosphere. Numerous large - scale decomposition experiments have been conducted focusing on this fundamental soil process in order to understand the controls on the terrestrial carbon transfer to the atmosphere. However, prev...
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2018djukic.pdf LINK AL EDITOR |
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| 008 | 180730t2018 ne |||||o|||| 00| | eng d | ||
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| 022 | |a 1612-1880 | ||
| 024 | |a 10.1016/j.scitotenv.2018.01.012 | ||
| 040 | |a AR-BaUFA | ||
| 245 | 1 | 0 | |a Early stage litter decomposition across biomes |
| 520 | |a Through litter decomposition enormous amounts of carbon is emitted to the atmosphere. Numerous large - scale decomposition experiments have been conducted focusing on this fundamental soil process in order to understand the controls on the terrestrial carbon transfer to the atmosphere. However, previous studies were mostly based on site - specific litter and methodologies, adding major uncertainty to syntheses, comparisons and metaanalyses across different experiments and sites. In the Tea Composition initiative, the potential litter decomposition is investigated by using standardized substrates (Rooibos and Green tea) for comparison of litter mass loss at 336 sites (ranging from −9 to +26 °C MAT and from 60 to 3113mm MAP) across different ecosystems. In this study we tested the effect of climate (temperature and moisture), litter type and land-use on early stage decomposition (3 months) across nine biomes. We show that litter quality was the predominant controlling factor in early stage litter decomposition, which explained about 65% of the variability in litter decomposition at a global scale. The effect of climate, on the other hand, was not litter specific and explained b0.5% of the variation for Green tea and 5% for Rooibos tea, and was of significance only under unfavorable decomposition conditions (i.e. xeric versus mesic environments). When the data were aggregated at the biome scale, climate played a significant role on decomposition of both litter types (explaining 64% of the variation for Green tea and 72% for Rooibos tea). No significant effect of land - use on early stage litter decompositionwas notedwithin the temperate biome. Our results indicate that multiple drivers are affecting early stage littermass loss with litter quality being dominant. In order to be able to quantify the relative importance of the different drivers over time, long - term studies combined with experimental trials are needed. | ||
| 650 | |2 Agrovoc |9 26 | ||
| 653 | |a CARBON TURNOVER | ||
| 653 | |a GREEN TEA | ||
| 653 | |a ROOIBOS TEA | ||
| 653 | |a TEA BAG | ||
| 653 | |a TEA COMPOSITION INITIATIVE | ||
| 700 | 1 | |a Djukic, Ika |u Swiss Federal Institute for Forest. Snow and Landscape ResearchWSL. Zürich, Switzerland. |9 67582 | |
| 700 | 1 | |a Kepfer Rojas, Sebastian |u University of Copenhagen. Department of Geosciences and Natural Resource Management. Frederiksberg, Denmark. |9 67583 | |
| 700 | 1 | |a Kappel Schmidt, Inger |u University of Copenhagen. Department of Geosciences and Natural Resource Management. Frederiksberg, Denmark. |9 67584 | |
| 700 | 1 | |a Steenberg Larsen, Klaus |u University of Copenhagen. Department of Geosciences and Natural Resource Management. Frederiksberg, Denmark. |9 67585 | |
| 700 | 1 | |a Beier, Claus |u University of Copenhagen. Department of Geosciences and Natural Resource Management. Frederiksberg, Denmark. |9 67349 | |
| 700 | 1 | |a Berg, Björn |u University of Helsinki. Department of Forest Sciences. Helsinki, Finland. |u University of Gävle. Finland and Section of Biology. Gävle, Sweden. |9 45413 | |
| 700 | 1 | |a Verheyen, Kris |u Ghent University. Department of Forest and Water Management. Forest & Nature Lab. Geraardsbergsesteenweg 267, 9090 Gontrode, Belgium. |9 67587 | |
| 700 | 1 | |9 16176 |a Yahdjian, María Laura |u Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina. |u CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina. | |
| 773 | |t Science of the Total Environment |g Vol.628-629 (2018), p.1369-1394, il., tbls., grafs. | ||
| 856 | |f 2018djukic |i en reservorio |q application/pdf |u http://ri.agro.uba.ar/files/intranet/articulo/2018djukic.pdf |x ARTI201808 | ||
| 856 | |z LINK AL EDITOR |u http://www.elsevier.com | ||
| 942 | |c ARTICULO | ||
| 942 | |c ENLINEA | ||
| 976 | |a AAG | ||