Atmospheric deposition, CO2, and change in the land carbon sink
Copyright policy )Atmospheric deposition, CO2, and change in the land carbon sink
AbstractConcentrations of atmospheric carbon dioxide (CO2) have continued to increase whereas atmospheric deposition of sulphur and nitrogen has declined in Europe and the USA during recent decades. Using time series of flux observations from 23 forests distributed throughout Europe and the USA, and generalised mixed models, we found that forest-level net ecosystem production and gross primary production have increased by 1% annually from 1995 to 2011. Statistical models indicated that increasing atmospheric CO2 was the most important factor driving the increasing strength of carbon sinks in these forests. We also found that the reduction of sulphur deposition in Europe and the USA lead to higher recovery in ecosystem respiration than in gross primary production, thus limiting the increase of carbon sequestration. By contrast, trends in climate and nitrogen deposition did not significantly contribute to changing carbon fluxes during the studied period. Our findings support the hypothesis of a general CO2-fertilization effect on vegetation growth and suggest that, so far unknown, sulphur deposition plays a significant role in the carbon balance of forests in industrialized regions. Our results show the need to include the effects of changing atmospheric composition, beyond CO2, to assess future dynamics of carbon-climate feedbacks not currently considered in earth system/climate modelling.
- Département Sciences sociales, agriculture et alimentation, espace et environnement France
- Laboratoire des Sciences du Climat et de l'Environnement France
- UNIVERSITE DE MONTPELLIER 1 France
- Centre for Research on Ecology and Forestry Applications Spain
- Laboratoire des Scences du Climat et de l'Environnement France
Carbon sequestration, Atmospheric sciences, Settore AGR/05 - ASSESTAMENTO FORESTALE E SELVICOLTURA, 550, [SDV]Life Sciences [q-bio], Organic chemistry, BIOSPHERE, Deposition (geology), Plant Science, Klimaatverandering, Carbon sink, Agricultural and Biological Sciences, forest, forêt, SDG 13 - Climate Action, Carbon fibers, Climate change, Global and Planetary Change, Primary production, Ecology, Geography, Climate-change ecology, Alterra - Klimaatverandering en adaptief land- en watermanagement, ACID-RAIN, Life Sciences, Composite number, Geology, Carbon cycle, [SDV] Life Sciences [q-bio], Physical sciences, Chemistry, dépôt atmosphérique, Emissions, Sink (geography), Physical Sciences, europe, Engineering sciences. Technology, WATER-USE EFFICIENCY, Alterra - Climate change and adaptive land and water management, Atmospheric, SOIL RESPIRATION, CO2 Enrichment, DECOMPOSITION, Climate Change and Adaptive Land and Water Management, Impacts of Elevated CO2 and Ozone on Plant Physiology, Cartography, Composite material, Atmospheric carbon cycle, Nitrogen, Climate Change, Carbon dioxide in Earth's atmosphere, UNITED-STATES, 333, Klimaatverandering en adaptief land- en watermanagement, Article, Environmental science, FOREST ECOSYSTEMS, Life Science, NUTRIENT AVAILABILITY, General, Biology, Ecosystem, NITROGEN DEPOSITION, [ SDV ] Life Sciences [q-bio], Global Forest Drought Response and Climate Change, carbon, Paleontology, FOS: Earth and related environmental sciences, SULFUR DEPOSITION, états-unis, TRENDS, Materials science, NITROGEN, Climate Resilience, Carbon dioxide, Klimaatbestendigheid, FOS: Biological sciences, Global Methane Emissions and Impacts, Environmental Science, Sediment, carbone, Forest ecology, ELEVATED CO2, FOREST CARBON, usa
Carbon sequestration, Atmospheric sciences, Settore AGR/05 - ASSESTAMENTO FORESTALE E SELVICOLTURA, 550, [SDV]Life Sciences [q-bio], Organic chemistry, BIOSPHERE, Deposition (geology), Plant Science, Klimaatverandering, Carbon sink, Agricultural and Biological Sciences, forest, forêt, SDG 13 - Climate Action, Carbon fibers, Climate change, Global and Planetary Change, Primary production, Ecology, Geography, Climate-change ecology, Alterra - Klimaatverandering en adaptief land- en watermanagement, ACID-RAIN, Life Sciences, Composite number, Geology, Carbon cycle, [SDV] Life Sciences [q-bio], Physical sciences, Chemistry, dépôt atmosphérique, Emissions, Sink (geography), Physical Sciences, europe, Engineering sciences. Technology, WATER-USE EFFICIENCY, Alterra - Climate change and adaptive land and water management, Atmospheric, SOIL RESPIRATION, CO2 Enrichment, DECOMPOSITION, Climate Change and Adaptive Land and Water Management, Impacts of Elevated CO2 and Ozone on Plant Physiology, Cartography, Composite material, Atmospheric carbon cycle, Nitrogen, Climate Change, Carbon dioxide in Earth's atmosphere, UNITED-STATES, 333, Klimaatverandering en adaptief land- en watermanagement, Article, Environmental science, FOREST ECOSYSTEMS, Life Science, NUTRIENT AVAILABILITY, General, Biology, Ecosystem, NITROGEN DEPOSITION, [ SDV ] Life Sciences [q-bio], Global Forest Drought Response and Climate Change, carbon, Paleontology, FOS: Earth and related environmental sciences, SULFUR DEPOSITION, états-unis, TRENDS, Materials science, NITROGEN, Climate Resilience, Carbon dioxide, Klimaatbestendigheid, FOS: Biological sciences, Global Methane Emissions and Impacts, Environmental Science, Sediment, carbone, Forest ecology, ELEVATED CO2, FOREST CARBON, usa
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