首页|High growth recovery ability of Eucalyptus grandis trees following a 3-year period of 80% throughfall reduction
High growth recovery ability of Eucalyptus grandis trees following a 3-year period of 80% throughfall reduction
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NSTL
Elsevier
Eucalyptus plantations are already planted in or expanding to water-limited regions with a high risk of severe drought. In future drier and more variable climate including extreme events, the ability of trees to recover after severe droughts emerges as a crucial for the sustainability of forest plantations. An original experiment involving 80% reduction in throughfall was set up in Brazil to gain insight into the responses of Eucalyptus grandis trees to prolonged (3-year) extreme water deficit and the ability of this species to recover following water stress. Our study focused on the changes in basal area, stem radius, and total height measured by high-temporal resolution dendrometers and periodical surveys of trees affected by 80% throughfall reduction (treatment group) and in a control group. The differences in basal area, stem radius, and total height growth rate were compared between groups over (i) 37 months of 80% throughfall reduction and (ii) 31 months following the end of 80% throughfall reduction. The correlations among growth rates, stem radius fluctuations, and meteorological variables in each group were determined to gain insights into the trees' responses to environmental conditions and stem water status.
DroughtClimate changeDendrometerForest managementTree resilienceXylem vascular system
NSTL
Elsevier
