南麂列岛自然保护区潮间带环境质量现状评价

The present environmental quality assessment of intertidal zone in natural protect area of Nanji Archipelago

本文主要根据１９９２～１９９３年夏、冬两季南麂列岛潮间带环境本底调查的数据，采用环境质量指数法，评价了该自然保护区潮间带的水质、底质和生物体的环境质量状况。结果表明：南麂列岛自然保护区冬季的水质符合一类海水标准，夏季大部分区域为清洁区，仅国胜岙属尚清洁，火黍海水受到轻度污染。国胜岙的底质已有轻度污染，火岙属尚清洁，这主要与沉积物的类型有密切关系。保护区内生物体重金属的残留量均未超标。文中还提出了防治潮间带环境污染的建议和措施。

The text is mainly band on the environmental background survey data in the intertidedal zone of Nanji Archipelago in the 1992～1993 winter and summer seasons, useing environmental quality exponential method to assess water quality, substrate quality and environmental quality condition of organisms in the intertidal zone of the natural protect area. The results show that the water quality in Natural Protect Area of Nanji Archipelago in winter is qualified for the standard of the first grade sea water, and that the large part of the area is clean in summer, only Guoshenguo is rather clean area, and Huokunao sea water is slightly polluted. The substrate of Guoshengao has ben slightly POlluted, and the substrate of Huokunao is rather clean area, it mainly has close relationship with the species of edments. The remains of heavy metal in organisms in the protect area don't exceed the standard. The suggestion and measurements are proposed of protecting intertidal zone from pollution.