Tamm Review: Light use efficiency and carbon storage in nutrient and water experiments on major forest plantation species

Autor: Rafael Rubilar, Timothy J. Albaugh, Pierre Trichet, Thomas R. Fox, Janine M. Albaugh, Denis Loustau, Sune Linder, H. Lee Allen
Přispěvatelé: Bioinformatics Institute, Virginia Polytechnic Institute and State University [Blacksburg], JMA Consulting, Partenaires INRAE, ProFor Consulting, Universidad de Concepción, Interactions Sol Plante Atmosphère (UMR ISPA), Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine (Bordeaux Sciences Agro), Swedish University of Agricultural Sciences (SLU)
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Forest Ecology and Management
Forest Ecology and Management, Elsevier, 2016, 376, pp.333-342. ⟨10.1016/j.foreco.2016.05.031⟩
ISSN: 0378-1127
DOI: 10.1016/j.foreco.2016.05.031⟩
Popis: International audience; We used published data from nine sites where nutrient and water optimization studies had been installed in a 2 × 2 factorial design to determine maximum biomass production in response to a simple set of treatments. We tested for site and treatment effects on the relationships between stem, aboveground (stem, branches, foliage) and total (aboveground + roots) biomass production versus intercepted light (light use efficiency, LUE). We also estimated the additional carbon stored as a result of treatment. The sites were located in Australia (Pinus radiata), Brazil (Eucalyptus grandis × urophylla), France (Pinus pinaster), the United States in Georgia and North Carolina (Pinus taeda) and Hawaii (Eucalyptus saligna), Portugal (Eucalyptus globulus), South Africa (E. grandis), and Sweden (Picea abies). We hypothesized that site, treatment and their interaction would significantly affect LUE; however, we rejected our hypothesis because stem, aboveground and total LUE were not affected by site or treatment. The stem, aboveground and total LUE values were 1.21, 1.51, and 0.85 g MJ−1, respectively. The total LUE value was lower than that for stem and aboveground LUE because a different population was used for the analysis (only five of the nine sites had total production data), and the total LUE relationship had a zero intercept whereas the stem and aboveground LUE relationships had a negative intercept. The average amount of additional carbon that would be stored by the irrigation, fertilization, and fertilization plus irrigation treatments was 3.9, 6.8 and 13.4 Mg CO2 equivalents ha−1 yr−1, respectively. These additional carbon storage estimates, based on these research studies with annual nutrient and water applications, were similar to results obtained in operational settings with less intensive nutrient applications.
Databáze: OpenAIRE