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Reduction of forest soil respiration in response to nitrogen deposition
The use of fossil fuels and fertilizers has increased the amount of biologically reactive nitrogen in the atmosphere over the past century. As a consequence, forests in industrialized regions haveExpand
Productivity and carbon fluxes of tropical savannas
Aim (1) To estimate the local and global magnitude of carbon fluxes between savanna and the atmosphere, and to suggest the significance of savannas in the global carbon cycle. (2) To suggest theExpand
Old-growth forests as global carbon sinks
The results demonstrate that old-growth forests can continue to accumulate carbon, contrary to the long-standing view that they are carbon neutral, and suggest that 15 per cent of the global forest area, which is currently not considered when offsetting increasing atmospheric carbon dioxide concentrations, provides at least 10 per cent the global net ecosystem productivity. Expand
CO2 Balance of Boreal, Temperate, and Tropical Forests Derived from a Global Database
Terrestrial ecosystems sequester 2.1 Pg of atmospheric carbon annually. A large amount of the terrestrial sink is realized by forests. However, considerable uncertainties remain regarding the fate ofExpand
Carbon dioxide transfer over a Central Amazonian rain forest
Tropical rain forests are among the most important and least monitored of terrestrial ecosystems. In recent years, their influence on atmospheric concentrations of carbon dioxide and water vapor hasExpand
Carbon sequestration and biodiversity of re-growing miombo woodlands in Mozambique
There was no discernible increase in soil C stocks with period of re-growth, suggesting that the rate of accumulation of organic matter in these soils was very slow, and there is a potential for C sequestration in soils on abandoned farmland. Expand
Impacts of climate change on the tree line.
It does seem very unlikely that photosynthesis per se and, by implication, factors that directly influence photosynthesis will be as important as those factors which influence the capacity of the tree to use the products of photosynthesis, such as temperature. Expand
Global nitrogen deposition and carbon sinks
Land and ocean carbon sinks play a critical role in determining atmospheric carbon dioxide levels. Nitrogen-induced increases in land and ocean sink strength are unlikely to keep pace with futureExpand
Understanding and managing the global carbon cycle
  • J. Grace
  • Environmental Science
  • 1 April 2004
Summary 1 Biological carbon sinks develop in mature ecosystems that have high carbon storage when these systems are stimulated to increase productivity, so that carbon gains by photosynthesis runExpand
Physico-chemical screening of phosphate-removing substrates for use in constructed wetland systems
Abstract The objective was to provide selection criteria for substrates that would enhance phosphate removal from waste water in a constructed wetland system (subsurface horizontal flow). MeasuredExpand