In situ measurement of water absorption by fine roots of three temperate trees: species differences and differential activity of superficial and deep roots.

@article{Leuschner2004InSM,
  title={In situ measurement of water absorption by fine roots of three temperate trees: species differences and differential activity of superficial and deep roots.},
  author={C. Jaco Leuschner and Heinz Coners and Regina Icke},
  journal={Tree physiology},
  year={2004},
  volume={24 12},
  pages={1359-67}
}
The spatial heterogeneity of water uptake by fine roots under field conditions was analyzed in situ with miniature sap flow gauges in a mature beech-oak-spruce mixed stand. Sap flow rate (J), sap flow density (Jd), and root surface-area-specific flow rate (uptake rate, Js) were measured for eight to 10 small-diameter roots (3-4 mm) per species in the organic layer (superficial roots) and in the mineral soil (30-80 cm, deep roots) during four months in summer 1999. We calculated Js by relating J… CONTINUE READING
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