Flux measurements in trees: methodological approach and application to vineyards (Articolo in rivista)

Type
Label
  • Flux measurements in trees: methodological approach and application to vineyards (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.4081/ija.2008.43 (literal)
Alternative label
  • Gianfranco Rana 1; Francesca De Lorenzi 2 (2008)
    Flux measurements in trees: methodological approach and application to vineyards
    in Italian journal of agronomy (Online)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Gianfranco Rana 1; Francesca De Lorenzi 2 (literal)
Pagina inizio
  • 43 (literal)
Pagina fine
  • 52 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 3 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 1 (literal)
Note
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1 Consiglio per la Ricerca e Sperimentazione in Agricoltura - Unità di Ricerca per i Sistemi Colturali degli Ambienti Caldo-Aridi Via C. Ulpiani 5, 70125 Bari, Italy 2 Consiglio Nazionale delle Ricerche - Istituto per i Sistemi Agricoli e Forestali del Mediterraneo Via Patacca 85, 80156 Ercolano (NA), Italy (literal)
Titolo
  • Flux measurements in trees: methodological approach and application to vineyards (literal)
Abstract
  • In this paper a review of two sap flow methods for measuring the transpiration in vineyards is presented. The objective of this work is to examine the potential of detecting transpiration in trees in response to environmental stresses, particularly the high concentration of ozone (O3) in troposphere. The methods described are the stem heat balance and the thermal dissipation probe; advantages and disadvantages of each method are detailed. Applications of both techniques are shown, in two large commercial vineyards in Southern Italy (Apulia and Sicily), submitted to semi-arid climate. Sap flow techniques allow to measure transpiration at plant scale and an upscaling procedure is necessary to calculate the transpiration at the whole stand level. Here a general technique to link the value of transpiration at plant level to the canopy value is presented, based on experimental relationships between transpiration and biometric characteristics of the trees. In both vineyards transpiration measured by sap flow methods compares well with evapotranspiration measured by micrometeorological techniques at canopy scale. Moreover soil evaporation component has been quantified. In conclusion, comments about the suitability of the sap flow methods for studying the interactions between trees and ozone are given. (literal)
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