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Article
Open AccessMicrobial competition for phosphorus limits the CO2 response of a mature forest
The capacity for terrestrial ecosystems to sequester additional carbon (C) with rising CO2 concentrations depends on soil nutrient availability1,2. Previous evidence suggested that mature forests growing on phosp...
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Article
Open AccessStomatal responses of terrestrial plants to global change
Quantifying the stomatal responses of plants to global change factors is crucial for modeling terrestrial carbon and water cycles. Here we synthesize worldwide experimental data to show that stomatal conductan...
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Article
Open AccessConvergence in phosphorus constraints to photosynthesis in forests around the world
Tropical forests take up more carbon (C) from the atmosphere per annum by photosynthesis than any other type of vegetation. Phosphorus (P) limitations to C uptake are paramount for tropical and subtropical for...
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Article
The fate of carbon in a mature forest under carbon dioxide enrichment
Atmospheric carbon dioxide enrichment (eCO2) can enhance plant carbon uptake and growth1–5, thereby providing an important negative feedback to climate change by slowing the rate of increase of the atmospheric CO
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Article
Three years of soil respiration in a mature eucalypt woodland exposed to atmospheric CO2 enrichment
The rate of CO2 diffusion from soils to the atmosphere (soil CO2 efflux, soil respiration; Rsoil) reflects the integrated activity of roots and microbes and is among the largest fluxes of the terrestrial global C...
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Article
Elevated CO2 does not increase eucalypt forest productivity on a low-phosphorus soil
Experimental evidence from a mature, phosphorous-limited, eucalypt forest finds that aboveground productivity was not significantly stimulated by elevated CO2. Findings suggest that this effect may be limited acr...
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Article
Response of belowground communities to short-term phosphorus addition in a phosphorus-limited woodland
Soil biota regulate essential ecosystem processes but our understanding of how soil fertility constrains biotic interactions remains limited. We investigated belowground responses to short-term phosphorus (P) ...
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Article
Optimal stomatal behaviour around the world
Stomatal conductance is a land-surface attribute that links the water and carbon cycles. Analysis of a global database covering a wide range of plant functional types and biomes now provides a framework for pr...
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Article
Forest Canopy Properties and Variation in Aboveground Net Primary Production over Upper Great Lakes Landscapes
Relationships among aboveground net primary production (ANPP) and forest canopy properties were investigated in secondary successional forests of similar age and disturbance history in northern Lower Michigan,...
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Article
Nitrogen limitation constrains sustainability of ecosystem response to CO2
Future trends in atmospheric CO2 concentrations, and thus future climate, will depend in part on the degree to which terrestrial ecosystems can accumulate CO2 emissions from human activities. A six-year grassland...
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Chapter
Leaf to Landscape
This chapter focuses on the diffusion of CO2 from the atmosphere to the leaf interior. CO2 diffusion occurs along a concentration gradient from the bulk atmosphere to the sub-stomatal cavity. Along this gradient ...
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Chapter
Leaf to Landscape
The capacity of terrestrial plant leaves for photosynthetic CO2 fixation per unit gram of leaf varies over 10-fold (Reich et al. 1997). The results of CO2 fixation, processing and subsequent accumulation of mass ...
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Article
Soil fertility limits carbon sequestration by forest ecosystems in a CO2-enriched atmosphere
Northern mid-latitude forests are a large terrestrial carbon sink1,2,3,4. Ignoring nutrient limitations, large increases in carbon sequestration from carbon dioxide (CO2) fertilization are expected in these fores...
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Article
Modeling dynamic understory photosynthesis of contrasting species in ambient and elevated carbon dioxide
Dynamic responses of understory plants to sunflecks have been extensively studied, but how much differences in dynamic light responses affect daily photosynthesis (A day) is still the subject of active research. ...
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Article
Relationships of leaf dark respiration to leaf nitrogen, specific leaf area and leaf life-span: a test across biomes and functional groups
Based on prior evidence of coordinated multiple leaf trait scaling, we hypothesized that variation among species in leaf dark respiration rate (R d) should scale with variation in traits such as leaf nitrogen (N...
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Article
Leaf and canopy responses to elevated CO2 in a pine forest under free-air CO2 enrichment
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Article
Leaf and canopy responses to elevated CO2 in a pine forest under free-air CO2 enrichment
Physiological responses to elevated CO2 at the leaf and canopy-level were studied in an intact pine (Pinus taeda) forest ecosystem exposed to elevated CO2 using a free-air CO2 enrichment (FACE) technique. Normali...
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Chapter
Impact of Pear Thrips Damage on Sugar Maple Physiology: A Whole-Tree Experiment
Pear thrips, Taeniothrips inconsequens, were placed in cylindrical, fine-mesh nets enclosing whole tree crowns to examine the effect of pear thrips feeding damage on sugar maple leaf physiology. Leaf area in the ...
