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Towards robust regional estimates of CO2 sources and sinks using atmospheric transport models
An uptake of CO2 in the southern extratropical ocean less than that estimated from ocean measurements is found, a result that is not sensitive to transport models or methodological approaches, and carbon fluxes integrated over latitudinal zones are strongly constrained by observations in the middle to high latitudes.
Consistent Land- and Atmosphere-Based U.S. Carbon Sink Estimates
Land- and atmosphere-based estimates of the carbon sink in the coterminous United States for 1980–89 are consistent, within the large ranges of uncertainty for both methods, indicating a relatively stable U.S. sink throughout the period.
Recent patterns and mechanisms of carbon exchange by terrestrial ecosystems
An overview of the current state of knowledge of global and regional patterns of carbon exchange by terrestrial ecosystems is provided, confirming that the terrestrial biosphere was largely neutral with respect to net carbon exchange during the 1980s, but became a net carbon sink in the 1990s.
Global Carbon Budget 2018
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, and terrestrial biosphere – the “global carbon budget” – is
The carbon balance of terrestrial ecosystems in China
It is found that northeast China is a net source of CO2 to the atmosphere owing to overharvesting and degradation of forests, and southern China accounts for more than 65 per cent of the carbon sink, which can be attributed to regional climate change, large-scale plantation programmes active since the 1980s and shrub recovery.
Contribution of anthropogenic and natural sources to atmospheric methane variability
The results indicate that wetland emissions dominated the inter-annual variability of methane sources, whereas fire emissions played a smaller role, except during the 1997–1998 El Niño event.
Regional changes in carbon dioxide fluxes of land and oceans since 1980.
We have applied an inverse model to 20 years of atmospheric carbon dioxide measurements to infer yearly changes in the regional carbon balance of oceans and continents. The model indicates that
Net carbon dioxide losses of northern ecosystems in response to autumn warming
Simulation and observations indicate that northern terrestrial ecosystems may currently lose carbon dioxide in response to autumn warming, with a sensitivity of about 0.2 PgC °C-1, offsetting 90% of the increased carbon dioxide uptake during spring.
Spatiotemporal patterns of terrestrial gross primary production: A review
Great advances have been made in the last decade in quantifying and understanding the spatiotemporal patterns of terrestrial gross primary production (GPP) with ground, atmospheric, and space
Importance of methane and nitrous oxide for Europe's terrestrial greenhouse-gas balance
Climate change negotiations aim to reduce net greenhouse-gas emissions by encouraging direct reductions of emissions and crediting countries for their terrestrial greenhouse-gas sinks. Ecosystem