2014年3月至10月通过对北海银滩滨海旅游度假区海域环境质量状况的监视监测,采用年平均指数法进行年度综合等级评价,并根据统计分析结果对影响该度假区的主要原因进行分析。研究结果表明,北海银滩滨海旅游度假区的水质指数为4．3,达到良好及以上的天数占97%,水质状况优良；海面状况指数为4．7,海面环境状况极佳；平均休闲(观光)活动指数为4．4,适宜开展各项休闲娱乐活动的天数达到90%以上。该度假区海域环境质量状况总体优良,很适宜开展滨海休闲观光活动,其中部分时段不适宜开展的主要原因是天气不佳。%Based on the investigation data of coastal recreational area at Beihai Silver Beach, between 2014 March to October, techniques of the annual average index were applied to assessing the environmental quality at this area, and main impact of the environmental quality were analyzed. The study results show that water quality index is 4. 3, days of water quality achieve good and above accounted for 97%, which shows that water quality is good. Sea surface index is 4. 7 , In the range of excellent. The average leisure activities index is 4. 4, very suitable for carried out coastal leisure activities days accounted for more than 90%. Quality of the marine environment at Beihai Silver Beach is good, very suitable for carried out coastal leisure activities, main reason of not suitable is bad weather.
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