Science. 1992 Oct 23;258(5082):646-50. doi: 10.1126/science.258.5082.646.
Severe reduction of stratospheric ozone over Antarctica has focused increasing concern on the biological effects of ultraviolet-B (UVB) radiation (280 to 320 nanometers). Measurements of photosynthesis from an experimental system, in which phytoplankton are exposed to a broad range of irradiance treatments, are fit to an analytical model to provide the spectral biological weighting function that can be used to predict the short-term effects of ozone depletion on aquatic photosynthesis. Results show that UVA (320 to 400 nanometers) significantly inhibits the photosynthesis of a marine diatom and a dinoflagellate, and that the effects of UVB are even more severe. Application of the model suggests that the Antarctic ozone hole might reduce near-surface photosynthesis by 12 to 15 percent, but less so at depth. The experimental system makes possible routine estimation of spectral weightings for natural phytoplankton.
南极洲平流层臭氧的严重减少引起了人们对紫外线-B（UVB）辐射（280 至 320 纳米）的生物效应的日益关注。通过一个实验系统对光合作用进行测量，该系统使浮游植物暴露于广泛的辐照处理下，然后将测量结果拟合到一个分析模型中，以提供可用于预测臭氧消耗对水生光合作用的短期影响的光谱生物加权函数。结果表明，UVA（320 至 400 纳米）会显著抑制海洋硅藻和甲藻的光合作用，而 UVB 的影响则更为严重。该模型的应用表明，南极臭氧洞可能会使近地表光合作用减少 12%至 15%，但在深层则减少较少。该实验系统使得对天然浮游植物的光谱加权进行常规估算成为可能。
