Effects of solar ultraviolet radiation on terrestrial ecosystems patterns, mechanisms, and interactions with climate change
Ultraviolet radiation [UV] is a minor fraction of the solar spectrum reaching the ground surface. In this assessment we summarize the results of previous work on the effects of the UV-B component [280-315 nm] on terrestrial ecosystems, and draw attention to important knowledge gaps in our understand...
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| Otros Autores: | , , , , |
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| Formato: | Artículo |
| Lenguaje: | Español |
| Materias: | |
| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2011Ballare.pdf LINK AL EDITOR |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
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| 245 | 1 | 0 | |a Effects of solar ultraviolet radiation on terrestrial ecosystems |b patterns, mechanisms, and interactions with climate change |
| 520 | |a Ultraviolet radiation [UV] is a minor fraction of the solar spectrum reaching the ground surface. In this assessment we summarize the results of previous work on the effects of the UV-B component [280-315 nm] on terrestrial ecosystems, and draw attention to important knowledge gaps in our understanding of the interactive effects of UV radiation and climate change. We highlight the following points: [i] The effects of UV-B on the growth of terrestrial plants are relatively small and, because the Montreal Protocol has been successful in limiting ozone depletion, the reduction in plant growth caused by increased UV-B radiation in areas affected by ozone decline since 1980 is unlikely to have exceeded 6 percent. [ii] Solar UV-B radiation has large direct and indirect [plant-mediated] effects on canopy arthropods and microorganisms. Therefore, trophic interactions [herbivory, decomposition] in terrestrial ecosystems appear to be sensitive to variations in UV-B irradiance. [iii] Future variations in UV radiation resulting from changes in climate and land-use may have more important consequences on terrestrial ecosystems than the changes in UV caused by ozone depletion. This is because the resulting changes in UV radiation may affect a greater range of ecosystems, and will not be restricted solely to the UV-B component. [iv] Several ecosystem processes that are not particularly sensitive to UV-B radiation can be strongly affected by UV-A [315-400 nm] radiation. One example is the physical degradation of plant litter. Increased photodegradation [in response to reduced cloudiness or canopy cover] will lead to increased carbon release to the atmosphere via direct and indirect mechanisms. | ||
| 653 | 0 | |a ANIMAL | |
| 653 | 0 | |a CLIMATE CHANGE | |
| 653 | 0 | |a ECOSYSTEM | |
| 653 | 0 | |a HUMAN | |
| 653 | 0 | |a PLANT | |
| 653 | 0 | |a RADIATION EXPOSURE | |
| 653 | 0 | |a RADIATION MONITORING | |
| 653 | 0 | |a SOLAR ENERGY | |
| 653 | 0 | |a ULTRAVIOLET RADIATION | |
| 653 | 0 | |a ANIMALS | |
| 653 | 0 | |a HUMANS | |
| 653 | 0 | |a PLANTS | |
| 653 | 0 | |a ULTRAVIOLET RAYS | |
| 653 | 0 | |a ARTHROPODA | |
| 700 | 1 | |9 672 |a Ballaré, Carlos Luis | |
| 700 | 1 | |9 59835 |a Caldwell, Martyn M. | |
| 700 | 1 | |9 68762 |a Flint, Stephan D. | |
| 700 | 1 | |9 68759 |a Robinson, Sharon A. | |
| 700 | 1 | |9 27745 |a Bornman, Janet F. | |
| 773 | |t Photochemical and Photobiological Sciences |g Vol.10, no.2 (2011), p.226-241 | ||
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| 900 | |a ^tEffects of solar ultraviolet radiation on terrestrial ecosystems^spatterns, mechanisms, and interactions with climate change | ||
| 900 | |a ^aBallaré^bC.L. | ||
| 900 | |a ^aCaldwell^bM.M. | ||
| 900 | |a ^aFlint^bS.D. | ||
| 900 | |a ^aRobinson^bS.A. | ||
| 900 | |a ^aBornman^bJ.F. | ||
| 900 | |a ^aBallaré^bC. L. | ||
| 900 | |a ^aCaldwell^bM. M. | ||
| 900 | |a ^aFlint^bS. D. | ||
| 900 | |a ^aRobinson^bS. A. | ||
| 900 | |a ^aBornman^bJ. F. | ||
| 900 | |a ^aBallaré, C.L.^tIFEVA and Consejo Nacional de Investigaciones Científicas y Técnicas [CONICET], Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453, Buenos Aires C1417DSE, Argentina | ||
| 900 | |a ^aCaldwell, M.M.^tDepartment of Wildland Resources and the Ecology Center, 5230 Old Main Hill, Utah State University, Logan, UT 84322-5230, United States | ||
| 900 | |a ^aFlint, S.D.^tInstitute for Conservation Biology and Environmental Management, University of Wollongong, Northfields Avenue, NSW 2522, Australia | ||
| 900 | |a ^aRobinson, S.A.^tInternational Global Change Centre, University of Waikato, Private Bag 3105, Hamilton 3240, New Zealand | ||
| 900 | |a ^aBornman, J.F.^t | ||
| 900 | |a ^tPhotochemical and Photobiological Sciences^cPhotochem. Photobiol. Sci. | ||
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| 900 | |a 226 | ||
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| 900 | |a Vol. 10, no. 2 | ||
| 900 | |a 241 | ||
| 900 | |a ANIMAL | ||
| 900 | |a CLIMATE CHANGE | ||
| 900 | |a ECOSYSTEM | ||
| 900 | |a HUMAN | ||
| 900 | |a PLANT | ||
| 900 | |a RADIATION EXPOSURE | ||
| 900 | |a RADIATION MONITORING | ||
| 900 | |a SOLAR ENERGY | ||
| 900 | |a ULTRAVIOLET RADIATION | ||
| 900 | |a ANIMALS | ||
| 900 | |a HUMANS | ||
| 900 | |a PLANTS | ||
| 900 | |a ULTRAVIOLET RAYS | ||
| 900 | |a ARTHROPODA | ||
| 900 | |a Ultraviolet radiation [UV] is a minor fraction of the solar spectrum reaching the ground surface. In this assessment we summarize the results of previous work on the effects of the UV-B component [280-315 nm] on terrestrial ecosystems, and draw attention to important knowledge gaps in our understanding of the interactive effects of UV radiation and climate change. We highlight the following points: [i] The effects of UV-B on the growth of terrestrial plants are relatively small and, because the Montreal Protocol has been successful in limiting ozone depletion, the reduction in plant growth caused by increased UV-B radiation in areas affected by ozone decline since 1980 is unlikely to have exceeded 6 percent. [ii] Solar UV-B radiation has large direct and indirect [plant-mediated] effects on canopy arthropods and microorganisms. Therefore, trophic interactions [herbivory, decomposition] in terrestrial ecosystems appear to be sensitive to variations in UV-B irradiance. [iii] Future variations in UV radiation resulting from changes in climate and land-use may have more important consequences on terrestrial ecosystems than the changes in UV caused by ozone depletion. This is because the resulting changes in UV radiation may affect a greater range of ecosystems, and will not be restricted solely to the UV-B component. [iv] Several ecosystem processes that are not particularly sensitive to UV-B radiation can be strongly affected by UV-A [315-400 nm] radiation. One example is the physical degradation of plant litter. Increased photodegradation [in response to reduced cloudiness or canopy cover] will lead to increased carbon release to the atmosphere via direct and indirect mechanisms. | ||
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