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Title
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Above- and below-ground carbon accumulation and biomass allocation in poplar short rotation plantations under Mediterranean conditions
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Author
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Abstract
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| Beside the production of biomass, short rotation coppice (SRC) poplar plantations can also contribute to carbon sequestration in the soil through their below-ground biomass. The present study evaluated the allocation of above and below-ground biomass at the end of the first rotation of four SRC plantations under Mediterranean conditions. The genotypes evaluated are commonly used for biomass plantations, i.e. genotypes AF2 and I-214 (Populus×canadensis Mönch), and Monviso (P.×generosa Henry×P. nigra L.). No significant differences among genotypes were found with regard to below-ground biomass yield. The root:shoot ratio decreased in line with the growth in shoot basal diameter, with values ranging from 0.15 to 0.26. The accumulation of carbon in the below-ground fraction of the biomass ranged from 0.86 to 0.91 Mg C ha−1 yr−1, whereas the above-ground carbon accumulation ranged from 3.89 to 6.48 Mg C ha−1 yr−1. A general as well as a genotype-specific allometric model allowed to accurately predict the below-ground biomass yield using shoot basal diameter as the predictor variable. Both models provide an important tool to quantify the carbon accumulated in the belowground fraction of the biomass. |
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Language
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English
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Source (journal)
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Forest ecology and management. - Amsterdam
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Publication
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Amsterdam
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2018
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ISSN
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0378-1127
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Volume/pages
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428
(2018)
, p. 57-65
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ISI
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000440770600007
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Full text (Publisher's DOI)
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Full text (open access)
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Full text (publisher's version - intranet only)
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