Sap-flow velocities and distribution of wet-wood in trunks of healthy and unhealthy Quercus robur, Quercus petraea and Quercus cerris oak trees in Hungary

A. Fenyvesi, Cs Béres, A. Raschi, R. Tognietti, H. W. Ridder, T. Molnár, J. Röfler, T. Lakatos, I. Csiha

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Sap-flow of Quercus robur, Quercus petraea and Quercus cerris oak trees were studied. 43K radioisotope tracing, the heat pulse velocity technique and the Granier-method were employed. Numerous intense pulses were observed in healthy Quercus petraea superposing onto the usual diumal change. Only a few pulses were observed in unhealthy Quercus petraea, in healthy Quercus cerris and healthy and unhealthy Quercus robur trees. Proportion of wet-wood assessed by γ- and X-ray computer tomography and magnetic resonance imaging was significantly less in healthy Quercus petraea trees than in healthy Quercus cerris trees. Proportion of wet-wood was higher in healthy trees than unhealthy trees of both species.

Original languageEnglish
Pages (from-to)931-936
Number of pages6
JournalChemosphere
Volume36
Issue number4-5
DOIs
Publication statusPublished - Feb 1 1998

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Chemistry(all)
  • Pollution
  • Health, Toxicology and Mutagenesis

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