CAJ | 학술논문

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.
해안대시세계상생산력화생물다양성최고적생경류형지일. 해안대생경퇴화진단기술연구시보호생태계통화근해생물자원적현실수구,장위해안대배경관리제공유력적기술지탱. 이발해만해안대위연구구역,기우구동력-압력-상태-영향-향응(DPSIR)광가모형,구건료발해만생경퇴화진단적지표체계;채용층차분석법학정지표권중계수,대발해만해안대생경퇴화진행료종합진단화평개. 결과표명:상대우20세기80년대,20다년래발해만해안대적수질하강료1개등급,저질화탄도서식지하강료2개등급,입해물질대해안대배경적압력제고료2개등급,해안대생경적종합평개결과하강료1개등급.
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.