Linking water use efficiency with water use strategy from leaves to communities

New Phytologist
By: , and 

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Abstract

Limitations and utility of three measures of water use characteristics were evaluated: water use efficiency (WUE), intrinsic WUE and marginal water cost of carbon gain (aE/aA) estimated, respectively, as ratios of assimilation (A) to transpiration (E), of A to stomatal conductance (gs) and of sensitivities of E and A with variation in gs. Only the measure aE/aA estimates water use strategy in a way that integrates carbon gain relative to water use under varying environmental conditions across scales from leaves to communities. This insight provides updated and simplified ways of estimating aE/aA and adds depth to understanding ways that plants balance water expenditure against carbon gain, uniquely providing a mechanistic means of predicting water use characteristics under changing environmental scenarios.

Publication type Article
Publication Subtype Journal Article
Title Linking water use efficiency with water use strategy from leaves to communities
Series title New Phytologist
DOI 10.1111/nph.19308
Volume 240
Issue 5
Year Published 2023
Language English
Publisher Wiley
Contributing office(s) Wetland and Aquatic Research Center
Description 8 p.
First page 1735
Last page 1742
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