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Special Issue "Water Origin in Wet Areas and River Basins: Characteristics and Availability for Trees"

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A special issue of Water (ISSN 2073-4441).

Deadline for manuscript submissions: closed (31 March 2010)

Special Issue Editor

Guest Editor
Dr. Luc Lambs

EcoLab UMR5245 (CNRS-UPS-INP), 118 route de Narbonne, 31062 Toulouse cedex 09, France
Website | E-Mail
Fax: +33 5 61 55 89 10
Interests: trees and water cycle; riparian forest; mangrove; isotope tracing (18O, D); dendrochronology; bioremediation

Keywords

  • how to discriminate different kinds of water when many sources are available
  • link between water need and tree growth
  • how plants adapt water needs and uptake during low water or dry periods

Published Papers (1 paper)

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Research

Open AccessArticle Daily Variations of Water Use with Vapor Pressure Deficit in a Plantation of I214 Poplars
Water 2009, 1(1), 32-42; doi:10.3390/w1010032
Received: 22 September 2009 / Revised: 26 October 2009 / Accepted: 5 November 2009 / Published: 6 November 2009
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Abstract
Daily rates of whole tree water use were measured in a homogeneous 7-year-old plantation over 84 days. Two trees were selected in the two most contrasting ends, i.e., with mean water table at -1.5 m and -3.5 m. Results showed that the
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Daily rates of whole tree water use were measured in a homogeneous 7-year-old plantation over 84 days. Two trees were selected in the two most contrasting ends, i.e., with mean water table at -1.5 m and -3.5 m. Results showed that the mean tree water use was close to 80 dm3 day–1 with a small mean difference between the two sites (5.4 dm3 day–1, about 7%). Higher daily variations were observed on a single tree over the season (from 17 to 138 dm3 day–1). These fluctuations could be modeled using linear regressions on the vapor pressure deficit (VPD). Results also indicated decreasing sap flux densities with radial sapwood depth and that the whole tree water use could be estimated from the sap flux densities measured at the 0–2 cm depth. Full article
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