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Relationship between soil moisture and leaf water potential of three forest tree species

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Biologia Plantarum

Abstract

A mathematic model of loaf water potential daily dynamics was employed to study the relationship between this characteristic and soil moisture for the speciesQuercus cerris,Acer campestre andCarpinus betulus. It was found that when evaluating the availability of soil water for a plant it is necessary to consider the vapour pressure deficit which remarkably affects the relationship between the soil moisture and leaf water potential. A quantitative description of the dependence between the leaf water potential and soil moisture enabled a physiological interpretation of the limit values of soil moisture — permanent wilting and reduced availability of soil water for the plant — as well as evaluation of the drought resistance of plants.

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Authors and Affiliations

  1. Institute of Hydrology and Hydraulics, Slovak Academy of Sciences, Trnavská 32, 826 51, Bratislava, Czechoslovakia

    J. Huzulák

  2. Geophysical Institute, Slovak Academy of Sciences, Bratislava

    F. Matejka

Authors
  1. J. Huzulák
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  2. F. Matejka
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Additional information

Dedicated to Dr. Jozef Kolek, DrSc. on the occasion of his 60th birthday.

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Huzulák, J., Matejka, F. Relationship between soil moisture and leaf water potential of three forest tree species. Biol Plant 25, 462–467 (1983). https://doi.org/10.1007/BF02903149

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  • DOI: https://doi.org/10.1007/BF02903149

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