| 紫外线B对海洋生态系统的影响 |
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| 引用本文： | 周伟华,殷克东.紫外线B对海洋生态系统的影响[J].生态环境,2005,14(3):434-438. |
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| 作者姓名： | 周伟华 殷克东 |
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| 作者单位： | 1. 中国科学院南海海洋研究所,广东,广州,510301;中国科学院海南热带海洋生物实验站,海南,三亚,572000
2. 中国科学院南海海洋研究所,广东,广州,510301;中国科学院南海海洋研究所//热带海洋环境动力学重点实验室,广东,广州,510301 |
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| 基金项目： | 国家杰出青年科学基金项目(40125016)，中国科学院创新项目(ZKCX2-SW-212)，广东省科技重点项目(2002A3050103) |
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| 摘 要： | 近年来随着臭氧损失现象日益严重，到达地球表面的紫外线B辐射不断加强，海洋生态系统受到了前所未有的威胁。UV-B的增强改变了生物体赖以生存的水体环境，影响了浮游植物对营养盐的吸收同化，抑制了浮游植物的光合作用，从而减少了海洋对CO2的吸收能力，其结果直接增加了温室效应。同时UV-B也直接影响生态系统食物链的各个营养级，伤害海洋病毒、细菌和浮游植物，降低浮游动物和仔稚鱼的成活率，进而影响到整个海洋生态系统的结构和功能。
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| 关 键 词： | 紫外线B 海洋生态系统 影响评价 |
| 文章编号： | 1672-2175(2005)03-0434-05 |
| 修稿时间： | 2004年12月18 |
Effects of ultraviolet radiation B on marine ecosystem |
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| ZHOU Wei-hua,YIN Ke-dong.Effects of ultraviolet radiation B on marine ecosystem[J].Ecology and Environmnet,2005,14(3):434-438. |
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| Authors: | ZHOU Wei-hua YIN Ke-dong |
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| Institution: | ZHOU Wei-hua1,2,YIN Ke-dong1,3 1. South China Sea Institute of Oceanology,Chinese Academy of Sciences,Guangzhou 510301,China, 2. Tropical Marine Biological Research Station in Hainan,Chinese Academy of Sciences,Sanya 572000,China, 3. LED,South China Sea Institute of Oceanology,Chinese Academy of Sciences,Guangzhou 510301,China |
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| Abstract: | The increasing loss of ozone becomes more and more serious, which leads to the enhanced ultraviolet radiation B (UV-B) reaching the earth. Therefore, the marine ecosystem is faced with new, unprecedented challenge. The UV-B increase changes the biological living environment in the ocean, influences the absorption and assimilation of nutrients by phytoplankton, inhibits the phytoplankton photosynthesis, and reduces the atmospheric carbon dioxide absorbability of the ocean. The direct result is to enhance the greenhouse effects. At the same time, UV-B influences each trophic level of the ecosystem food chain directly. It injures marine virus, bacteria and phytoplankton, and decreases the survival rate of eggs, larvae and juvenile of zooplankton and fishes. In a word, it will influence all the food chain and food web, and will change the structure and function of the whole marine ecosystem. |
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| Keywords: | ultraviolet radiation B marine ecosystem evaluation |
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