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

FOREST ECOLOGY AND MANAGEMENT

卷:376

Review

Albaugh, Timothy J.¹  Albaugh, Janine M.²  Fox, Thomas R.¹  Allen, H. Lee³  Rubilar, Rafael A.⁴  Trichet, Pierre⁵  Loustau, Denis⁵  Linder, Sune⁶ 

[1] Virginia Tech, Dept Forest Resources & Environm Conservat, 228 Cheatham Hall, Blacksburg, VA 24061 USA

[2] JMA Consulting, Hillsborough, NC USA

[3] ProFor Consulting, Cary, NC USA

[4] Univ Concepcion, Fac Ciencias Forestales, Cooperat Productividad Forestales, Victoria 631,Casilla 160-C, Concepcion, Chile

[5] INRA, UMR ISPA, F-33140 Villenave Dornon, France

[6] Swedish Univ Agr Sci, Southern Sweden Forest Res Ctr, SE-23053 Alnarp, Sweden

关键词: Carbon;    Growth efficiency;    Nutrient optimization;    Potential productivity;   

DOI  :  10.1016/j.foreco.2016.05.031

来源: Elsevier

【 摘 要 】

We used published data from nine sites where nutrient and water optimization studies had been installed in a 2 x 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, above-ground (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 x 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. (C) 2016 Elsevier B.V. All rights reserved.

【 授权许可】

Free