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系统研究了40多年来海水富营养化指数E定义的发展,进而整理了近10 a来应用富营养指数法评价中国近岸海域水质状态的富营养化指数E值,计算了我国Ⅰ、Ⅱ、Ⅲ和Ⅳ类海水水质标准所对应的E的最大临界值分别为:1.3、6、10.7和25;并阐明了河口近岸海域环境中海水产生富营养化E高值的原因。结果显示,中国近岸海域富营养化指数E值的范围在0~137.84;中国近岸海域出现E的高值不仅与港口海湾所处的自然地理环境有关,也与人为因素有关;人为排放的氮磷营养盐是导致海水富营养化的主要因素。
The eutrophication index (E) of seawater eutrophication index in China has been systematically studied over the past 40 years, and the eutrophication index (E) The maximum critical values of E corresponding to Grade III and IV seawater quality standards are 1.3, 6, 10.7 and 25, respectively. The reasons for the high Eu eutrophication of seawater in the estuarine estuarine environment are clarified. The results showed that the eutrophication index of coastal waters in China ranged from 0 to 137.84. The high value of E in coastal waters of China was not only related to the natural geographical environment in port bay, but also related to human factors. Anthropogenic emissions Nitrogen and phosphorus nutrients is the main factor leading to seawater eutrophication.