Response of Pinus sylvestris roots to sheet-erosion exposure: An anatomical approach

Rubiales Jimenez, Juan Manuel; Bodoque del Pozo, Jose Maria; Ballesteros Cánovas, Juan Antonio y Díez-Herrero, Andrés (2008). Response of Pinus sylvestris roots to sheet-erosion exposure: An anatomical approach. "Natural Hazards and Earth System Sciences", v. 8 (n. 2); pp. 223-231. ISSN 1561-8633.

Descripción

Título: Response of Pinus sylvestris roots to sheet-erosion exposure: An anatomical approach
Autor/es:
  • Rubiales Jimenez, Juan Manuel
  • Bodoque del Pozo, Jose Maria
  • Ballesteros Cánovas, Juan Antonio
  • Díez-Herrero, Andrés
Tipo de Documento: Artículo
Título de Revista/Publicación: Natural Hazards and Earth System Sciences
Fecha: Marzo 2008
Volumen: 8
Materias:
Escuela: E.T.S.I. Montes (UPM) [antigua denominación]
Departamento: Silvopascicultura [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Anatomical changes of exposed tree roots are valuable tools to date erosion events, but the responses of diverse species under different types of erosion need still to be studied in detail. In this paper we analyze the histological changes that occur in roots of Scots pine (Pinus sylvestris L.) subjected to continuous denudation. A descriptive and quantitative study was conducted in the Senda Schmidt, a popular trail located on the northern slope of the Sierra de Guadarrama (Central Iberian System, Spain). Measurement of significant parameters allowed the moment of exposure of the roots to be identified. These parameters were: a) width of the growth ring; b) number of cells per ring; c) percentage of latewood and d) diameter of cellular light in earlywood. A one-way analysis ANOVA was also carried out in order to establish statistically significant differences between homogeneous groups of measurements in pre-exposed and exposed roots. Based on these analyses, Scots pine roots show a remarkable anatomical response to sheet-erosion exposure. Increased growth in the ring is accompanied by a slight reduction of the cell lumina of the earlywood tracheids. At the end of the ring, several rows of thick-walled tracheids define latewood tissue and visible annual borders very clearly. Furthermore, resin ducts often appear in tangential rows, increasing resin density in the tissue. All of these indicators made it possible to determine with precision the first year of exposure and to estimate precisely sheet erosion rates.

Más información

ID de Registro: 2143
Identificador DC: http://oa.upm.es/2143/
Identificador OAI: oai:oa.upm.es:2143
URL Oficial: http://www.nat-hazards-earth-syst-sci.net/8/223/2008/nhess-8-223-2008.html
Depositado por: Memoria Investigacion
Depositado el: 28 Abr 2010 11:09
Ultima Modificación: 20 Abr 2016 11:54
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