▪ Abstract The use of stable isotope techniques in plant ecological research has grown
steadily during the past two decades. This trend will continue as investigators realize that …

Stable isotopes in tree rings could provide palaeoclimate reconstructions with perfect annual
resolution and statistically defined confidence limits. Recent advances make the approach …

Stable carbon isotope ratios (δ13 C) of terrestrial plants are employed across a diverse
range of applications in environmental and plant sciences; however, the kind of information …

A mechanistic understanding of plant photosynthetic response is needed to reliably predict
changes in terrestrial carbon (C) gain under conditions of chronically elevated atmospheric …

The Earth's carbon and hydrologic cycles are intimately coupled by gas exchange through
plant stomata,,. However, uncertainties in the magnitude,, and consequences, of the …

Aim The goals of this study are:(1) to determine whether increasing atmospheric CO2
concentrations and changing climate increased intrinsic water use efficiency (iWUE, as …

The rate of CO 2 assimilation by plants is directly influenced by the concentration of CO 2 in
the atmosphere, ca. As an environmental variable, ca also has a unique global and historic …

Defined as the ratio between gross primary productivity (GPP) and evapotranspiration (ET),
ecosystem‐scale water‐use efficiency (EWUE) is an indicator of the adjustment of …

Because atmospheric carbon dioxide is the ultimate source of all land-plant carbon, workers
have suggested that pCO2 level may exert control over the amount of 13C incorporated into …

Elevated vapor pressure deficit (VPD) due to drought and warming is well-known to limit
canopy stomatal and surface conductance, but the impacts of elevated VPD on ecosystem …