IFEVA 02662
INSTITUTO DE INVESTIGACIONES FISIOLOGICAS Y ECOLOGICAS VINCULADAS A LA AGRICULTURA
Unidad Ejecutora - UE
artículos
Título:
Comment on Extreme environments in the forests of Ushuaia, Argentina by Hector D'Antoni et al.
Autor/es:
FLINT, SD; BALLARÉ, CL; CALDWELL, MM; MCKENZIE, RL
Revista:
GEOPHYSICAL RESEARCH LETTERS
Editorial:
American Geophysical Union
Referencias:
Año: 2008 vol. 35 p. 13710 - 13713
ISSN:
0094-8276
Resumen:
An investigation of influences on treeline near Ushuaia, Tierra del Fuego, Argentina, by DAntoni et al. [2007] reported high ultraviolet-C radiation (UV-C, l < 280 nm) in terrestrial sunlight. Because of well-known atmospheric absorption of UV, any portion of the groundlevel UV-C fluxes they reported would be impossible. We suspect these UV-C fluxes to be spurious results of instrument limitations. Their report also speculates on vegetation response to UV while neglecting extensive research in Tierra del Fuego which would have shown vastly different effects had UV-C been present.
