Linking water use efficiency with water use strategy from leaves to communities
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.
Citation Information
Publication Year | 2023 |
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Title | Linking water use efficiency with water use strategy from leaves to communities |
DOI | 10.1111/nph.19308 |
Authors | Jie Liang, Ken Krauss, John Finnigan, Hilary Stuart-Williams, Graham D. Farquhar, Marilyn C. Ball |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | New Phytologist |
Index ID | 70249775 |
Record Source | USGS Publications Warehouse |
USGS Organization | Wetland and Aquatic Research Center |