Variability and plasticity of productivity, water-use efficiency, and nitrogen exportation rate in Salix short rotation coppice
| Autor: | Jean-Charles Bastien, Erwin Dallé, Muriel Feinard-Duranceau, Bénédicte Rollin, Nicolas Marron, Franck Brignolas, Julien Toillon |
|---|---|
| Přispěvatelé: | Laboratoire de Biologie des Ligneux et des Grandes Cultures (LBLGC), Institut National de la Recherche Agronomique (INRA)-Université d'Orléans (UO), Arbres et Réponses aux Contraintes Hydriques et Environnementales (ARCHE), Institut National de la Recherche Agronomique (INRA), Ecologie et Ecophysiologie Forestières [devient SILVA en 2018] (EEF), Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL), Institut universitaire de formation des maîtres - Centre Val de Loire (IUFM Centre Val-de-Loire), Université d'Orléans (UO), Unité de recherche Amélioration, Génétique et Physiologie Forestières (UAGPF), Unité de recherche Amélioration, Génétique et Physiologie Forestières (AGPF), Bioenergy section of the French national research agency (ANR) project SYLVABIOM (ANR-08-BIOE-006) and ERA-Net Bioenergy project CREFF (ADEME) |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
0106 biological sciences
Willow Genotype × Site interaction 020209 energy [SDV]Life Sciences [q-bio] 02 engineering and technology Biology 01 natural sciences Coppicing Nutrient Bioenergy 0202 electrical engineering electronic engineering information engineering Water-use efficiency Waste Management and Disposal 2. Zero hunger Bioenergy plantation Renewable Energy Sustainability and the Environment Sowing Forestry 15. Life on land Nitrogen removal biology.organism_classification Short rotation forestry Bulk leaf carbon isotope discrimination (Δ13C) Biomass production Agronomy Short rotation coppice Agronomy and Crop Science 010606 plant biology & botany |
| Zdroj: | Biomass and Bioenergy Biomass and Bioenergy, Elsevier, 2013, 56, pp.392-404. ⟨10.1016/j.biombioe.2013.05.017⟩ |
| ISSN: | 0961-9534 1873-2909 |
| DOI: | 10.1016/j.biombioe.2013.05.017⟩ |
| Popis: | International audience; Short rotation coppice (SRC) willow plantations may play an important role in the future for biomass production purposes. However, the high planting density schemes combined with the frequent harvests occurring in such plantations could rapidly deplete soil resources. The use of genotypes able to produce greater amounts of biomass by using the least water and nutrients may help mitigating this risk. This study aimed at assessing among six willow genotypes (1) the variability of traits related to productivity (e.g. aboveground dry biomass or stem height), leaf and wood nitrogen (N) contents, N exportation rate and water-use efficiency (WUE) as estimated through bulk leaf carbon isotope discrimination (Δ13C), (2) the relationships among traits, and (3) the plasticity of these traits and of the relationships among them across different sites. The six genotypes were grown under SRC at three sites in northern France differing primarily in pedoclimatic characteristics for two years. A significant genotypic variability was found for all traits, except for the N exportation rate. The pedoclimatic context impacted the values of all traits, and the genotypic ranking for traits related to productivity and for Δ13C. Δ13C was negatively correlated with total shoot dry biomass and/or height irrespective of the site, meaning that the most productive genotypes were also the most efficient to use water. In conclusion, no antagonism was detected between biomass production and WUE. The most productive and most water-use efficient genotypes were the ones responsible for the highest nitrogen removal from the plantation during harvest. |
| Databáze: | OpenAIRE |
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