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根据 1997年 8月～ 1998年 11月的调查数据 ,分析红海湾水域的营养水平及分布特点 ,以了解红海湾水域营养水平的分布特点及污染状况。红海湾水域的富营养化指数E的分布从北向南呈逐渐递减趋势 ,即长沙湾滩涂养殖区 >长沙湾浅海养殖区 >自然水域、龟龄岛水域 ,其中长沙湾滩涂养殖区和长沙湾浅海养殖区受污染明显 ,分别达高富营养化程度和富营养化程度 ;自然水域和龟龄岛水域则营养状况相似 ,基本上未受到明显的污染。E的季节变化趋势为春季 >秋季 >夏季 >冬季 ,除冬季处于贫营养状况外 ,其余 3个季节均达富营养化程度 ,其中以春季受到的污染最为严重 ,达高富营养化程度。分别根据CN/CP 值和E值所推断出的结论基本相同
According to the survey data from August 1997 to November 1998, the nutrition level and distribution characteristics of Red Bay waters were analyzed to understand the distribution characteristics and pollution status of the nutrition level in Honghai Bay waters. The distribution of eutrophication index E in the Red Bay waters gradually decreased from north to south, ie the beach sand culture area of Cheung Sha Wan> the shallow water aquaculture area of Cheung Sha Wan> natural waters and the water area of Guigao Island, of which the sand beach sand culture area of Cheung Sha Wan and the shallow sea of Cheung Sha Wan The aquaculture area was obviously polluted, reaching the highest degree of eutrophication and eutrophication. The natural waters and the waters of Guiling Island had similar nutritional status, and were basically free of obvious pollution. The seasonal trend of E was spring> autumn> summer> winter, except the winter in the state of poor nutrition, the other three seasons reached the level of eutrophication, of which the spring was the most polluted, reaching a high degree of eutrophication. The conclusions drawn from the CN / CP values and E values are basically the same