Effects of increased solar ultraviolet radiation on aquatic ecosystems
Effects of increased solar ultraviolet radiation on aquatic ecosystems
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DOI：
10.1007/978-1-4684-5988-3_12
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
D. Häder
中科院分区：
文献类型：
--
作者：
D. Häder
利用太阳能进行有机生物质的光合作用生产几乎是地球上生命的唯一能源。每年将二氧化碳以二氧化碳形式并入有机分子的数量超过1000亿吨，这可以通过装满10列从地球到月球的煤炭列车来可视化(Häder等人，1989年)。然而，在这种巨大的产量中，只有约三分之一是由陆地植物--森林、稀树草原、农作物等--产生的，而大部分是由水生生境中的浮游植物(初级生产者)产生的，特别是在世界海洋中。到目前为止，海洋浮游植物群落是地球上最大的生态系统(Schneider，1989)；因此，即使种群数量的一小部分减少也会导致这些生物的生物量生产力的巨大损失，这可能对复杂的生态系统本身和在许多方面依赖这一系统的人类产生巨大影响(Häder等人，1989)。
The photosynthetic production of organic biomass using solar energy is the almost exclusive source of energy for life on our planet. The amount of carbon in the form of its dioxide incorporated annually into organic molecules exceeds 100 gigatons which can be visualized by the load filling 10 coal trains spanning the distance from the earth to the moon (Häder et al., 1989). However, only about one third of this enormous production is accounted for by terrestrial plants — forests, savannas, crop plants etc. — while the majority is produced by the phytoplankton organisms (primary producers) in aquatic habitats, especially in the world oceans. The marine phytoplankton communities represent by far the largest ecosystem on earth (Schneider, 1989); therefore even a small percentage decrease in the populations would result in enormous losses in the biomass productivity of these organisms, which could have dramatic effects both for the intricate ecosystem itself and for humans, who depend on this system in many ways (Häder et al., 1989).