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Effects of age-related increases in sapwood area,leaf area,and xylem conductivity on height-related hydraulic costs in two contrasting coniferous species |
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| Authors: | |
| Institution: | (1) ENITAB, UMR 1220 TCEM, 33175 Gradignan, France;(2) INRA, UMR 1220 TCEM, 33883 Villenave d′Ornon, France;(3) Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, NC 27795, USA;(4) Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR 97331, USA;(5) Department of Biological Sciences, Plymouth State University, Plymouth, NH 03264, USA;(6) Department of Botany, Connecticut College, New London, CT 06320, USA |
| Abstract: | IntroductionKnowledge of vertical variation in hydraulic parameters would improve our understanding of individual trunk functioning and likely have important implications for modeling water movement to the leaves. Specifically, understanding how foliage area (A l), sapwood area (A s), and hydraulic specific conductivity (k s) vary with canopy position to affect leaf-specific conductivity (LSC) and whole-tree leaf-specific hydraulic conductance (K l) may explain some of the contrasting patterns of A l/A s reported in the literature. |
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