منابع مشابه
Grassland trace gas exchange under elevated CO2
Soil-atmosphere exchange of CH4, CO2, NOx, and N2O in the Colorado Shortgrass Steppe following five years of elevated CO2 and N fertilization A. R. Mosier, E. Pendall, and J. A. Morgan USDA/ARS, Fort Collins, CO, USA Department of Botany, University of Wyoming, Laramie, WY, USA Received: 28 January 2003 – Accepted: 18 April 2003 – Published: 20 May 2003 Correspondence to: A. R. Mosier (amosier@...
متن کاملRhizodeposition stimulated by elevated CO2 in a semiarid grassland
• Rhizodeposition, or the addition of C from roots to soil C pools, is expected to increase if net primary production is stimulated and some excess C is allocated below-ground. We investigated the effects of 5 yrs of elevated CO2 on belowground C dynamics in a native, C3–C4 grassland ecosystem in Colorado, USA. • Cylinder harvests following each growing season and monolith excavation at the end...
متن کاملGrassland responses to global environmental changes suppressed by elevated CO2.
Simulated global changes, including warming, increased precipitation, and nitrogen deposition, alone and in concert, increased net primary production (NPP) in the third year of ecosystem-scale manipulations in a California annual grassland. Elevated carbon dioxide also increased NPP, but only as a single-factor treatment. Across all multifactor manipulations, elevated carbon dioxide suppressed ...
متن کاملGrassland species effects on soil CO2 flux track the effects of elevated CO2 and nitrogen
• Understanding and predicting the impacts of elevated atmospheric CO2, elevated nitrogen deposition, and decreases in plant diversity require better understanding of the way in which plant species influence soil CO2 flux. • In experimental grassland plots where atmospheric CO2, nitrogen supply, and species composition and diversity were manipulated, species effects on soil CO2 flux during 19 s...
متن کاملElevated CO2 Affects Predator-Prey Interactions through Altered Performance
Recent research has shown that exposure to elevated carbon dioxide (CO2) affects how fishes perceive their environment, affecting behavioral and cognitive processes leading to increased prey mortality. However, it is unclear if increased mortality results from changes in the dynamics of predator-prey interactions or due to prey increasing activity levels. Here we demonstrate that ocean pCO2 pro...
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ژورنال
عنوان ژورنال: Science
سال: 2014
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.346.6211.823-c