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Related Experiment Videos

Influence of weather on cork-ring width.

A Caritat1, E Gutiérrez, M Molinas

  • 1Laboratori del Suro, University of Girona, Spain.

Tree Physiology
|April 17, 2001
PubMed
Summary

Cork growth in Quercus suber trees is strongly linked to precipitation, particularly in fall and winter. Temperature also plays a role, with moderate conditions favoring growth, but drought and extreme temperatures can limit cork production.

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Area of Science:

  • Forest Ecology
  • Dendrochronology
  • Plant Physiology

Background:

  • Cork oak (Quercus suber L.) is a key species in Mediterranean ecosystems.
  • Cork production is economically important, but its variability is not fully understood.
  • Climate significantly influences tree growth and secondary growth processes like phellogen activity.

Purpose of the Study:

  • To analyze the relationship between cork ring width and climatic factors in Quercus suber.
  • To identify key climatic drivers limiting cork growth in southwestern Spain.
  • To understand the influence of precipitation and temperature on cork production.

Main Methods:

  • Analysis of cork ring-width series from Quercus suber trees.
  • Correlation analysis with monthly precipitation and temperature data.
  • Evaluation of climatic indices combining precipitation and temperature.

Main Results:

  • Cork ring width showed a strong positive correlation with precipitation, especially during autumn and winter.
  • Moderately low temperatures were generally favorable for cork growth.
  • Winter temperatures and the onset of phellogen activity showed specific temperature sensitivities.

Conclusions:

  • Precipitation is a primary driver of cork growth in Quercus suber.
  • Drought conditions during the annual dry period significantly limit cork production.
  • Temperature also influences cork growth, with specific periods being more sensitive to thermal variations.

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