Relationships among Maximum Stomatal Conductance, Ecosystem Surface Conductance, Carbon Assimilation Rate, and Plant Nitrogen Nutrition: A Global Ecology Scaling Exercise

Relationships among Maximum Stomatal Conductance, Ecosystem Surface Conductance, Carbon... between nitrogen-(N)-nutrition and stomatal conductance, gs' at the leaf scale This review provides a theoretical framework and global maps for relations and flUXe!1 of water vapor and carbon dioxide at the canopy scale. This theory defines the boundaries for observed rates of maximum surface conductance, imum stomatal conductances. gsmax. Soil evaporation compensates for the Gsmax, and its relation to leaf area index, A, within a range of observed max­ reduced contribution of plants to total ecosystem water loss at A < 4. Thus, types. Gsmax is fairly independent of changes in A for a broad range of vegetation The variation of Gsmax within these boundaries can be explained by effects of plant nutrition on stomatal conductance via effects on assimilation. Relations are established for the main global vegetation types among (i) maximum stomatal conductance and leaf nitrogen concentrations with a slope 0.3 mm s-I per mg N g-I, (ii) maximum surface conductance and stomatal 3 mm s-I in G per mm S-I in g, and (iii) maximum surface CO2 uptake and surface conductance with a slope of 1 /lmol m-2 s-1 conductance with a slope of in A per mm S-1 in of G. Based on the distribution http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annual Review of Ecology, Evolution, and Systematics Annual Reviews

Relationships among Maximum Stomatal Conductance, Ecosystem Surface Conductance, Carbon Assimilation Rate, and Plant Nitrogen Nutrition: A Global Ecology Scaling Exercise

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Publisher
Annual Reviews
Copyright
Copyright 1994 Annual Reviews. All rights reserved
Subject
Review Articles
ISSN
0066-4162
D.O.I.
10.1146/annurev.es.25.110194.003213
Publisher site
See Article on Publisher Site

Abstract

between nitrogen-(N)-nutrition and stomatal conductance, gs' at the leaf scale This review provides a theoretical framework and global maps for relations and flUXe!1 of water vapor and carbon dioxide at the canopy scale. This theory defines the boundaries for observed rates of maximum surface conductance, imum stomatal conductances. gsmax. Soil evaporation compensates for the Gsmax, and its relation to leaf area index, A, within a range of observed max­ reduced contribution of plants to total ecosystem water loss at A < 4. Thus, types. Gsmax is fairly independent of changes in A for a broad range of vegetation The variation of Gsmax within these boundaries can be explained by effects of plant nutrition on stomatal conductance via effects on assimilation. Relations are established for the main global vegetation types among (i) maximum stomatal conductance and leaf nitrogen concentrations with a slope 0.3 mm s-I per mg N g-I, (ii) maximum surface conductance and stomatal 3 mm s-I in G per mm S-I in g, and (iii) maximum surface CO2 uptake and surface conductance with a slope of 1 /lmol m-2 s-1 conductance with a slope of in A per mm S-1 in of G. Based on the distribution

Journal

Annual Review of Ecology, Evolution, and SystematicsAnnual Reviews

Published: Nov 1, 1994

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