منابع مشابه
Effects of experimental warming of air, soil and permafrost on carbon balance in Alaskan tundra
The carbon (C) storage capacity of northern latitude ecosystems may diminish as warming air temperatures increase permafrost thaw and stimulate decomposition of previously frozen soil organic C. However, warming may also enhance plant growth so that photosynthetic carbon dioxide (CO2) uptake may, in part, offset respiratory losses. To determine the effects of air and soil warming on CO2 exchang...
متن کاملModeling long-term changes in tundra carbon balance following wildfire, climate change, and potential nutrient addition.
To investigate the underlying mechanisms that control long-term recovery of tundra carbon (C) and nutrients after fire, we employed the Multiple Element Limitation (MEL) model to simulate 200-yr post-fire changes in the biogeochemistry of three sites along a burn severity gradient in response to increases in air temperature, CO2 concentration, nitrogen (N) deposition, and phosphorus (P) weather...
متن کاملAssessing the carbon balance of circumpolar Arctic tundra using remote sensing and process modeling.
This paper reviews the current status of using remote sensing and process-based modeling approaches to assess the contemporary and future circumpolar carbon balance of Arctic tundra, including the exchange of both carbon dioxide and methane with the atmosphere. Analyses based on remote sensing approaches that use a 20-year data record of satellite data indicate that tundra is greening in the Ar...
متن کاملAn assessment of the carbon balance of arctic tundra: comparisons among observations, process models, and atmospheric inversions
Introduction Conclusions References Tables Figures
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ژورنال
عنوان ژورنال: Global Biogeochemical Cycles
سال: 2004
ISSN: 0886-6236
DOI: 10.1029/2003gb002054