Effects of stratospheric ozone depletion, solar UV radiation, and climate change on biogeochemical cycling Interactions and feedbacks

Climate change modulates the effects of solar UV radiation on biogeochemical cycles in terrestrial and aquatic ecosystems, particularly for carbon cycling, resulting in UV-mediated positive or negative feedbacks on climate. Possible positive feedbacks discussed in this assessment include: [i] enhanc...

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Detalles Bibliográficos
Otros Autores: Erickson, D., Sulzberger, Barbara, Zepp, Richard G., Austin, Amy Theresa
Formato: Artículo
Lenguaje:Español
Materias:
CLIMATE CHANGE
ULTRAVIOLET RADIATION
Acceso en línea:http://ri.agro.uba.ar/files/download/articulo/2015erickson.pdf
LINK AL EDITOR
Aporte de:Registro referencial: Solicitar el recurso aquí
Biblioteca Central (FAUBA) de Universidad de Buenos Aires
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245 1 0 |a Effects of stratospheric ozone depletion, solar UV radiation, and climate change on biogeochemical cycling   |b Interactions and feedbacks 
520 |a Climate change modulates the effects of solar UV radiation on biogeochemical cycles in terrestrial and aquatic ecosystems, particularly for carbon cycling, resulting in UV-mediated positive or negative feedbacks on climate. Possible positive feedbacks discussed in this assessment include: [i] enhanced UV-induced mineralisation of above ground litter due to aridification; [ii] enhanced UV-induced mineralisation of photoreactive dissolved organic matter [DOM] in aquatic ecosystems due to changes in continental runoff and ice melting; [iii] reduced efficiency of the biological pump due to UV-induced bleaching of coloured dissolved organic matter [CDOM] in stratified aquatic ecosystems, where CDOM protects phytoplankton from the damaging solar UV-B radiation. Mineralisation of organic matter results in the production and release of CO2, whereas the biological pump is the main biological process for CO2 removal by aquatic ecosystems. This paper also assesses the interactive effects of solar UV radiation and climate change on the biogeochemical cycling of aerosols and trace gases other than CO2, as well as of chemical and biological contaminants. Interacting effects of solar UV radiation and climate change on biogeochemical cycles are particularly pronounced at terrestrial-aquatic interfaces. 
650 |2 Agrovoc  |9 26 
653 |a CLIMATE CHANGE 
653 |a ULTRAVIOLET RADIATION 
700 1 |a Erickson, D.  |9 71603 
700 1 |a Sulzberger, Barbara  |9 67574 
700 1 |9 68755  |a Zepp, Richard G. 
700 1 |9 48259  |a Austin, Amy Theresa 
773 |t Photochemical and Photobiological Sciences  |g vol.14, no.1 (2015), p.127-148 
856 |u http://ri.agro.uba.ar/files/download/articulo/2015erickson.pdf  |i En internet  |q application/pdf  |f 2015erickson  |x MIGRADOS2018 
856 |u https://www.rsc.org  |x MIGRADOS2018  |z LINK AL EDITOR 
942 0 0 |c ARTICULO 
942 0 0 |c ENLINEA 
976 |a AAG 

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