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| 海洋温差能开发特点及其对生态环境的影响方式 |
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兰志刚1,2, 李新仲1,2, 姬忠礼1,3, 于 汀1,2, 刘 强1,3, 李大树1,2
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1.CNOOC-CUP海洋能源工程技术联合研究院;2.中海石油(中国)有限公司北京研究中心;3.中国石油大学(北京)
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| 摘要: |
| 根据海洋温差能转换(OTEC)工艺过程的特点, 分析了海洋温差能开发对海洋生态环境的特殊影响。认为大流量吸排水形成的大尺度水团在海洋中的重新分布, 致使厂址周边海水的层化结构和环流结构以及海水盐度、溶解氧和营养水平等参数发生变化, 进而对海洋环境造成很大改变, 形成了OTEC技术特殊的环境影响方式。还着重分析了羽状流对初级生产力的影响, 以及卷载和冲击对海洋生物的影响, 分析归纳了海洋温差能开发生态环境影响的关键评价因子, 对下一步的研究重点提出了建议。为未来开展洋温差能开发以及全面评价海洋温差能开发造成的生态环境影响提供技术参考。 |
| 关键词: 海洋温差能 环境影响 海洋生态 |
| DOI：10.11759/hykx20171225003 |
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| 基金项目:中海石油有限公司科技项目(YXKY-2018-ZY-09) |
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| Characteristics of eco-environmental impact of ocean thermal energy conversion |
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LAN Zhi-gang,LI Xin-zhong,JI Zhong-li,YU Ting,LIU Qiang,LI Da-shu
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| Abstract: |
| In this paper, based on the characteristics of ocean thermal energy conversion (OTEC) process specific effects of ocean thermal energy development on marine ecological environment are analyzed. The redistribution of large-scale water masses formed by the large intake or discharge flow of the OTEC technology alters the marine environment through changes in the stratification, circulation, salinity, dissolved oxygen, and nutrient levels of the seawater around the OTEC site. The impact of the OTEC discharge plume on primary productivity and the entrainment effect on marine organisms in the intake pipes are analyzed. The key factors to be assessed in the environmental impact of OTEC on marine ecological environment are summarized, and suggestions for future research in this area are put forward in this paper. |
| Key words: ocean thermal energy environment impact ocean ecological system |