Now showing items 1-10 of 16
Functional responses of plants to elevated atmospheric CO 2 – do photosynthetic and productivity data from FACE experiments support early predictions?
(Blackwell Science Ltd, 2004-05)
Summary 1 I. Introduction 2 II. Early assessments of [CO 2 ] responses in natural ecosystems 2 III. Global network of FACE sites 4 IV. Assimilation and leaf N-content 5 V. Primary productivity 13 VI. ...
Forest fine-root production and nitrogen use under elevated CO 2 : contrasting responses in evergreen and deciduous trees explained by a common principle
(Blackwell Publishing Ltd, 2009-01)
Despite the importance of nitrogen (N) limitation of forest carbon (C) sequestration at rising atmospheric CO 2 concentration, the mechanisms responsible are not well understood. To elucidate the interactive effects of ...
Photosynthesis, carboxylation and leaf nitrogen responses of 16 species to elevated pCO 2 across four free-air CO 2 enrichment experiments in forest, grassland and desert
(Blackwell Science Ltd, 2004-12)
The magnitude of changes in carboxylation capacity in dominant plant species under long-term elevated CO 2 exposure (elevated pC a ) directly impacts ecosystem CO 2 assimilation from the atmosphere. We analyzed field CO 2 ...
Seedling survival in a northern temperate forest understory is increased by elevated atmospheric carbon dioxide and atmospheric nitrogen deposition
(Blackwell Publishing Ltd, 2007-01)
We tested the main and interactive effects of elevated carbon dioxide concentration ([CO 2 ]), nitrogen (N), and light availability on leaf photosynthesis, and plant growth and survival in understory seedlings grown in an ...
Sustainability of terrestrial carbon sequestration: A case study in Duke Forest with inversion approach
(Wiley Periodicals, Inc., 2003-03)
Carbon dioxide and water vapor exchange in a warm temperate grassland
(Springer-Verlag, 2004-01)
Grasslands cover about 40% of the ice-free global terrestrial surface, but their contribution to local and regional water and carbon fluxes and sensitivity to climatic perturbations such as drought remains uncertain. Here, ...
Maintenance of leaf N controls the photosynthetic CO 2 response of grassland species exposed to 9 years of free-air CO 2 enrichment
(Blackwell Publishing Ltd, 2010-07)
Determining underlying physiological patterns governing plant productivity and diversity in grasslands are critical to evaluate species responses to future environmental conditions of elevated CO 2 and nitrogen (N) ...
Belowground competition and the response of developing forest communities to atmospheric CO 2 and O 3
(Blackwell Publishing Ltd, 2007-10)
As human activity continues to increase CO 2 and O 3 , broad expanses of north temperate forests will be simultaneously exposed to elevated concentrations of these trace gases. Although both CO 2 and O 3 are potent modifiers ...
Exposure to an enriched CO 2 atmosphere alters carbon assimilation and allocation in a pine forest ecosystem
(Blackwell Science Ltd, 2003-10)
We linked a leaf-level CO 2 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 conductance-constrained carbon assimilation ...
Soil fertility limits carbon sequestration by forest ecosystems in a CO2-enriched atmosphere
(Macmillan Publishers Ltd., 2001-05-24)
Northern mid-latitude forests are a large terrestrial carbon sink(1-4). Ignoring nutrient limitations, large increases in carbon sequestration from carbon dioxide (CO2) fertilization are expected in these forests(5). Yet, ...