| 渤海湾海岸带生境退化诊断方法 |
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| 引用本文： | 雷 坤,孟 伟,郑丙辉,李子成,彭娟莹.渤海湾海岸带生境退化诊断方法[J].环境科学研究,2009,22(12):1361-1365. |
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| 作者姓名： | 雷 坤 孟 伟 郑丙辉 李子成 彭娟莹 |
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| 作者单位： | 1. 中国环境科学研究院,北京,100012
2. 长沙环境保护职业技术学院,湖南,长沙,410004 |
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| 基金项目： | 国家重点基础研究发展计划(973)项目，环保公益性行业科研专项，国家自然科学基金项目 |
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| 摘 要： | 海岸带是世界上生产力和生物多样性最高的生境类型之一. 海岸带生境退化诊断技术研究是保护生态系统和近海生物资源的现实需求,将为海岸带环境管理提供有力的技术支撑. 以渤海湾海岸带为研究区域,基于驱动力-压力-状态-影响-响应(DPSIR)框架模型,构建了渤海湾生境退化诊断的指标体系;采用层次分析法确定指标权重系数,对渤海湾海岸带生境退化进行了综合诊断和评价. 结果表明:相对于20世纪80年代,20多年来渤海湾海岸带的水质下降了1个等级,底质和滩涂栖息地下降了2个等级,入海物质对海岸带环境的压力提高了2个等级,海岸带生境的综合评价结果下降了1个等级.
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| 关 键 词： | 渤海湾 海岸带 生境退化 诊断 |
| 收稿时间： | 2009/5/13 0:00:00 |
| 修稿时间： | 2009/6/2 0:00:00 |
Diagnosing Coastal Zone Habitat Degradation in the Bohai Bay |
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| LEI Kun,MENG Wei,ZHENG Bing-hui,LI Zi-cheng and PENG Juan-ying.Diagnosing Coastal Zone Habitat Degradation in the Bohai Bay[J].Research of Environmental Sciences,2009,22(12):1361-1365. |
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| Authors: | LEI Kun MENG Wei ZHENG Bing-hui LI Zi-cheng and PENG Juan-ying |
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| Abstract: | Coastal zone habitats have among the highest productivities and biodiversities throughout the world. Protecting marine ecosystems and resources demands the study and development of techniques to diagnose coastal zone habitat degradation. This is also critical to provide support for coastal environmental management. In this paper, the coastal zone of the Bohai Bay was selected as the study area, and the DPSIR framework model was adopted to establish an index system for diagnosing the coastal zone habitat degradation of the Bohai Bay. An analytic hierarchy process was applied to identify the weightings, so as to perform a comprehensive diagnosis and evaluation of the coastal zone habitat degradation of the Bohai Bay. The diagnostic results indicate that, compared with the 1980s, the water quality has degraded by one level;the sediment and the tidal flat habitat have degraded by two levels;the marine environmental pressure of the pollutant flux to the coastal zone has increased by two levels;and, the integrated state of the coastal zone of the Bohai Bay has degraded by one level. |
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| Keywords: | Bohai Bay coastal zone habitat degradation diagnose |
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