Effects of size and microclimate on whole-tree water use and hydraulic regulation in Schima superba trees.

ABSTRACT:

Background

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.

Methods

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.

Results

(1) Mean water consumption of the plantation was 287.6 mm

SUBMITTER: Zhao XW 

PROVIDER: S-EPMC6037140 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature