区域海洋功能调整对海域水质状况影响研究——以大连长兴岛葫芦山湾为例

Influence of Regional Ocean Function Adjustment on Sea Water Quality:A Case Study of the Hulushan Bay,Changxing Island,Dalian

根据大连长兴岛经济技术开发区葫芦山湾海域2000—2016年间6次海水水质调查数据,分析了该区域海洋功能调整对海域水质状况的影响。结果表明:区域海洋功能调整对海湾内水环境产生了一定的影响,并有阶段性富营养化趋势出现,且在湾内进行工业与城镇化功能调整过程中,表现的尤为突出;同时,对该海域进行有机污染指数变化评价,表明该海域的有机物污染较明显,有机污染指数达到最大值同样出现在海域功能调整相对剧烈的阶段。根据分析结果给出了区域海洋功能调整过程中海水水质影响研究的结论,并建议尽快选址实施两岸生产、生活污水的湾外深海排放,以保护海湾内海水水质环境。

Influences of regional ocean function adjustment on sea water quality are analyzed based on the data obtained in 6 water quality surveys carried out in the Hulushan Bay of the Dalian Changxing Island Economic and Technological Development Zone during the years from 2000 to 2016.The results show that the regional ocean function adjustment has exerted a certain impact on the water quality in the bay,resulting in a trend of stage eutrophication and being particularly prominent in the process of industry and urbanization adjustment.The evaluation of organic pollution index variations indicates that the pollution of organic compounds is more obvious in the study area,and the maximum value of the organic pollution index occurs also in the stage at which the function adjustment of the sea area is relatively severe.Based on the analytic results,conclusions are drawn for the influence of regional ocean function adjustment on sea water quality,and in order to protect the seawater quality and environment in the bay,it is suggested that sites should be chosen as soon as possible to implement the deep-sea discharge of the both-coast production and domestic sewages.