Climate Feedbacks Linking the Increasing Atmospheric CO2 Concentration, BVOC Emissions, Aerosols and Clouds in Forest Ecosystems

作者: Markku Kulmala , Tuomo Nieminen , Robert Chellapermal , Risto Makkonen , Jaana Bäck

DOI: 10.1007/978-94-007-6606-8_17

关键词: Negative feedbackCarbon sinkAerosolAtmospherePrimary productionEnvironmental scienceForest ecologyPositive feedbackAtmospheric chemistryAtmospheric sciences

摘要: Biogenic volatile organic compounds (BVOCs) play a central role in atmospheric chemistry via their high reactivity the gas phase and participation new particle formation secondary aerosol formation. The emissions of BVOC to atmosphere depend on several climate-related variables, making these part complex, yet potentially very important, climate feedback mechanisms. Here we illustrated BVOCs enhancing gross primary production (GPP) cloud droplet number concentrations. first phenomena forms positive loop for terrestrial carbon sink (GPP feedback), whereas second one negative ambient temperature increase (temperature feedback).

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