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DOI10.1039/c4pp90036g
Effects of stratospheric ozone depletion, solar UV radiation, and climate change on biogeochemical cycling: interactions and feedbacks
Erickson, David J., III1; Sulzberger, Barbara2; Zepp, Richard G.3; Austin, Amy T.4,5
发表日期2015
ISSN1474-905X
卷号14期号:1页码:127-148
英文摘要

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.


语种英语
WOS记录号WOS:000346567000008
来源期刊PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
来源机构美国环保署
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/60809
作者单位1.Oak Ridge Natl Lab, Comp Earth Sci Grp, Div Math & Comp Sci, Oak Ridge, TN 37831 USA;
2.Eawag Swiss Fed Inst Aquat Sci & Technol, CH-8600 Dubendorf, Switzerland;
3.US EPA, Athens, GA 30605 USA;
4.Univ Buenos Aires, Inst Invest Fisiol & Ecol Vinculadas Agr IFEVA, Buenos Aires, DF, Argentina;
5.Univ Buenos Aires, CONICET, Buenos Aires, DF, Argentina
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GB/T 7714
Erickson, David J., III,Sulzberger, Barbara,Zepp, Richard G.,et al. Effects of stratospheric ozone depletion, solar UV radiation, and climate change on biogeochemical cycling: interactions and feedbacks[J]. 美国环保署,2015,14(1):127-148.
APA Erickson, David J., III,Sulzberger, Barbara,Zepp, Richard G.,&Austin, Amy T..(2015).Effects of stratospheric ozone depletion, solar UV radiation, and climate change on biogeochemical cycling: interactions and feedbacks.PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES,14(1),127-148.
MLA Erickson, David J., III,et al."Effects of stratospheric ozone depletion, solar UV radiation, and climate change on biogeochemical cycling: interactions and feedbacks".PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES 14.1(2015):127-148.
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