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Memorias de investigación
Communications at congresses:
The growing dead: daily and seasonal stem diameter variation in response to simulated volcanic damages in Pinus canariensis.
Year:2017
Research Areas
  • Plants and animal biology and ecology
Information
Abstract
Pinus canariensis is adapted to volcanism, as it inhabits the Canary island archipelago since 13.5 Million years. It is able to survive volcanism disturbances due to its resprouting ability. We simulated volcanic damages along two consecutive years in 8 year old P. canariensis trees growing outdoors in the University fields. Trees were divided in three groups and assigned to the following treatments: i) C: Control trees ii) D: Defoliated trees (complete defoliation + bud removal) iii) DD: Defoliated+Wounded trees (same as defoliated+ a wound in the stem). Growth was continuously measured every 15 minutes with linear variable displacement transducers placed at the stem base of all trees with a precision of 1 micrometer. Maximum daily stem schrinkage (MDS) values as well as cumulative radial growth were determined. Results showed an immediate decrease in MDS after complete defoliation, but oscillations in stem diameter remained appreciable, showing patterns of stem swelling and shrinking similar to those measured in control trees, and independent from variations in air temperature. First year D and DW trees ceased their radial growth after treatment imposition in July and recovered it by November. However, growth was not recovered by the end of the year after the second defoliation.
International
Si
Congress
Xylem International Meeting III
960
Place
Bourdeaux, France
Reviewers
Si
ISBN/ISSN
000-00-000000-0-0
Start Date
27/09/2017
End Date
29/09/2017
From page
1
To page
1
Sin titulo
Participants
  • Autor: Jose Carlos Miranda Garcia-Roves (UPM)
  • Autor: M Pilar Pita Andreu (UPM)
  • Autor: Jesus Rodriguez Calcerrada (UPM)
  • Autor: Luis Alfonso Gil Sanchez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Genética, Fisiología e Historia Forestal
  • Departamento: Sistemas y Recursos Naturales
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