… The carbon isotope ratio (δ 13 C) in tree rings is commonly used to derive estimates of
the assimilation-to-stomatal conductance rate of trees, that is, intrinsic water-use efficiency (iWUE)…

… Redressing these gaps, as well as a more detailed exploration of nutrient and water effects
on the 13 C/ 12 C isotopic ratios in tree rings and a better quantification of the contributions of …

… from tree ring carbon and oxygen isotope chronologies to examine global trends in tree
ring–… an analysis of coupled tree ring–derived iWUE and ∆ 18 O lw over time (9, 20, 22, 23, 25). …

… We focus attention on stable carbon isotopes in tree rings and eddy-covariance flux
measurements. We do not include leaf gas exchange data because, while they are commonly used …

… forests to recover from severe water deficits. In addition to impacting C uptake and growth
during drought, the physiological changes trees undergo during water stress can also hinder …

… formation processes up to tree-ring development, bearing in … tree ring formed at a specific
time and position within the tree’… of environmental signals in tree rings must be grounded in a …

… We find that water availability exerts an important control on tree longevity in the tropics,
both in our analysis of the wider tropics as well as in the analysis restricted to the warm lowland …

… δ 13 C has been widely used to study intrinsic water use efficiency in plants ( i WUE) [55,
58]… This study confirmed that tree rings can be an environmental monitoring tool and that the …

… These differences could reflect a temporal scale mismatch between the leaf and tree data.
Because tree rings integrate processes occurring over an entire growing season, …

… Tree use of winter-sourced water in midsummer was … use of winter water in midsummer
across diverse humid climates, prompting the question of how much does tree water use …