标签:photobiology
uvr
ozone
分类:评论
Photobiology is a mainly branch of biology with the study focus on effects of solar radiation on different organisms and ecosystems.
The sun provides the energy that drives the terrestrial and aquatic ecosystems, based on the photosynthetic process. Solar radiation is therefore to be determinant to regulate the natural cycles (seasons, day and night), sustain almost all biological activity and make possible life on Earth.
However, solar energy can be deleterious in some cases, especially that range of radiation called ultraviolet radiation (UVR, 280-400 nm). Photosynthetic organisms are affected first as they receive and use solar radiation directly and are the first step in the food web.
The interest of UV Photobiology is the results of concern about the increasing levels of the earth surface UVR caused by the depletion of stratospheric ozone layer that may influence the aquatic ecosystems.
Photobiology field also contributes to try to understand the interaction between several other phenomena in relation to global climatic change, such as ozone depletion, UVR increase, raise of CO2 and temperature, etc.
Since the discovery of ozone "hole" over the Antarctic continent in 1970s, researches on short- or long-term effects of solar UVR on marine primary production have attracted more and more attentions of biologists and oceanographers.
So far, results from research in Photobiology have applied in several fields, such as human health, aquaculture, resistance of out-door materials exposed to the sun, etc., and they also provide practical and conceptual tools to assess the potential effects of climatic change on natural communities.
(原文地址：http://xiaonei.chinaren.com/blog/ligangluoxia/23466680)
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