Current and future impacts of ultraviolet radiation on the terrestrial carbon balance |
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Authors: | W Kolby Smith Wei Gao and Heidi Steltzer |
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Institution: | (1) USDA UV-B Monitoring and Research Program, Natural Resource Ecology Laboratory, Department 1499, Colorado State University, Fort Collins, CO 80521, USA;(2) Natural Resource Ecology Laboratory, Department 1499, Colorado State University, Fort Collins, CO 80521, USA |
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Abstract: | One of the most documented effects of human activity on our environment is the reduction of stratospheric ozone resulting
in an increase of biologically harmful ultraviolet (UV) radiation. In a less predictable manner, UV radiation incident at
the surface of the earth is expected to be further modified in the future as a result of altered cloud condition, atmospheric
aerosol concentration, and snow cover. Although UV radiation comprises only a small fraction of the total solar radiation
that is incident at the earth’s surface, it has the greatest energy per unit wavelength and, thus, the greatest potential
to damage the biosphere. Recent investigations have highlighted numerous ways that UV radiation could potentially affect a
variety of ecological processes, including nutrient cycling and the terrestrial carbon cycle. The objectives of the following
literature review are to summarize and synthesize the available information relevant to the effects of UV radiation and other
climate change factors on the terrestrial carbon balance in an effort to highlight current gaps in knowledge and future research
directions for UV radiation research. |
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Keywords: | climate change UV-B ultraviolet radiation solar radiation carbon cycle ozone photodegradation nutrient cycling |
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