Zhang Chuansong, Wang Xiulin, Shi Xiaoyong, Han Xiurong, Sun Xia, Zhu Chenjian, Lu Rong
College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266003, China.
Ying Yong Sheng Tai Xue Bao. 2003 Jul;14(7):1093-6.
Based on the data of COD and petroleum hydrocarbons collected in the cruise from April 25 to May 2, 2002 in intensive red tide occurrence areas in East China Sea, the distribution of COD, and petroleum hydrocarbons and the eutrophication index(EI) were analyzed. The results showed that the EI and COD value were both high in coastal water, and decreased gradually away from shore. After the preliminary study on the relationships between correlative factors and occurrence of red tide, it was found that high EI and COD were necessary. There would be great chances for the red tide to break out under conditions that the EI was between 2.5 and 15 and COD concentration was between 0.8 to 1.4 mg.L-1 in seawater, along with the favorable temperature and salinity.
根据2002年4月25日至5月2日在东海赤潮高发区进行的航次中采集的化学需氧量（COD）和石油烃数据，分析了COD、石油烃的分布及富营养化指数（EI）。结果表明，近岸水体中EI和COD值均较高，并随离岸距离的增加而逐渐降低。在对相关因素与赤潮发生之间的关系进行初步研究后发现，高EI和高COD是必要条件。当海水EI在2.5至15之间，COD浓度在0.8至1.4mg·L-1之间，同时伴有适宜的温度和盐度时，赤潮爆发的可能性很大。
