Abstract
Plant-water relations have been of significant concern in forestry and ecology studies in recent years, yet studies investigating the annual differences in the characteristics of inter-class water consumption in trees are scarce. We classified 15 trees from a Schima superba plantation in subtropical South China into four ranks using diameter at breast height (DBH). The inter-class and whole-tree water use were compared based on three parameters: sap flux density, whole-tree transpiration and canopy transpiration over two years. Inter-class hydraulic parameters, such as leaf water potential, stomatal conductance, hydraulic conductance, and canopy conductance were also compared. (1) Mean water consumption of the plantation was 287.6 mm over a year, 165.9 mm in the wet season, and 121.7 mm in the dry season. Annual mean daily water use was 0.79 mm d-1, with a maximum of 1.39 mm d-1. (2) Isohydrodynamic behavior were found in S. superba. (3) Transpiration was regulated via both hydraulic conductance and stoma; however, there was an annual difference in which predominantly regulated transpiration. This study quantified annual and seasonal water use of a S. superba plantation and revealed the coordinated effect of stoma and hydraulic...Continue Reading
References
Mar 26, 2003·Tree Physiology·Jim MorrisJohn Collopy
Mar 26, 2003·Tree Physiology·A. P. O'GradyL. B. Hutley
Jan 1, 1996·Tree Physiology·B. J. MyersW. J. Bond
Dec 1, 1987·Tree Physiology·A Granier
Jul 6, 2004·Tree Physiology·Jim MorrisXu Daping
Nov 3, 2004·Tree Physiology·B D BovardH P Schmid
Aug 4, 2005·Tree Physiology·Thomas MotzerDieter Anhuf
Jan 18, 2006·Tree Physiology·Michael J Daley, Nathan G Phillips
Dec 21, 2006·Plant, Cell & Environment·Peter J FranksRay H Froend
Aug 16, 2008·The Plant Journal : for Cell and Molecular Biology·Wei ZhangSarah M Assmann
Oct 14, 2009·Tree Physiology·Tomonori KumeKyoichi Otsuki
Jun 23, 2010·Tree Physiology·Melanie ZeppelDerek Eamus
Jul 16, 2010·Tree Physiology·Anthony R AmbroseTodd E Dawson
Aug 23, 2011·Tree Physiology·Krõõt Aasamaa, Anu Sõber
Jul 6, 2014·The New Phytologist·Jordi Martínez-VilaltaMaurizio Mencuccini
Mar 1, 1996·Oecologia·D LoustauR Tavares
Sep 1, 1992·Oecologia·B M M KöstnerP L Weir
Jul 1, 2003·Functional Plant Biology : FPB·Ping LuWarren J Müller