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Survey and synthesis of intra‐ and interspecific variation in stomatal sensitivity to vapour pressure deficit
Responses of stomatal conductance (gs) to increasing vapour pressure deficit (D) generally follow an exponential decrease described equally well by several empirical functions. However, the magnitude…
Soil fertility limits carbon sequestration by forest ecosystems in a CO2-enriched atmosphere
Evidence is presented that estimates of increases in carbon sequestration of forests, which is expected to partially compensate for increasing CO2 in the atmosphere, are unduly optimistic and that fertility can restrain the response of woodcarbon sequestration to increased atmospheric CO2.
Influence of soil porosity on water use in Pinus taeda
Analysis of hydraulic constraints imposed on water uptake from soils of different porosities in loblolly pine by comparing genetically related and even-aged plantations growing in loam versus sand soil suggests considerable phenotypic plasticity in water use traits for P. taeda which are adaptive to differences in soil porosity.
The effect of tree height on crown level stomatal conductance
Variation in stomatal conductance is typically explained in relation to environmental conditions. However, tree height may also contribute to the variability in mean stomatal conductance. Mean canopy…
Hydrologic balance in an intact temperate forest ecosystem under ambient and elevated atmospheric CO2 concentration
Abstract Increasing atmospheric CO2 concentration decreases stomatal conductance in many species, but the savings of water from reduced transpiration may permit the forest to retain greater leaf area…
Exposure to an enriched CO2 atmosphere alters carbon assimilation and allocation in a pine forest ecosystem
We linked a leaf‐level CO2 assimilation model with a model that accounts for light attenuation in the canopy and measurements of sap‐flux‐based canopy conductance into a new canopy…
Multiscale analysis of vegetation surface fluxes: from seconds to years
Long term carbon storage potential and CO2 sink strength of a restored salt marsh in New Jersey
Modeling CO2 and water vapor turbulent flux distributions within a forest canopy
One-dimensional multilayer biosphere-atmosphere models (e.g., CANVEG) describe ecosystem carbon dioxide (CO2) and water vapor (H2O) fluxes well when cold temperatures or the hydrologic state of the…
Variable conductivity and embolism in roots and branches of four contrasting tree species and their impacts on whole-plant hydraulic performance under future atmospheric CO₂ concentration.
- J. Domec, K. Schäfer, R. Oren, H. S. Kim, H. McCarthy
- Environmental ScienceTree physiology
- 1 August 2010
The role of variations in root and branch maximum hydraulic specific conductivity under high and low soil moisture in determining whole-tree hydraulic conductance and in mediating stomatal control of gas exchange in four contrasting tree species growing under ambient and elevated CO₂ was studied.