【摘要】 根据1987年2月至1988年2月的调查资料,讨论了珠江河口水域COD与盐度和N、P营养盐间的相互关系。线性回归的结果表明,纵断面Ⅲ的丰、枯水期COD与S和N、P间相关性很好,在99％置信水平上显著;横断面Ⅰ、Ⅱ区间,COD与S呈负相关趋势,COD与N高度显著相关,COD与P相关性次之。更多还原

【Abstract】 The relationship between COD and salinity, nitrate, phosphate in the Pearl River estuary was studied based on the investigation from February 1987 through February 1988 in the region. The results of linear regression analysis showed that there was good correlation between COD and S,nitrate,phosphate respectively at confidence level 99% in flood season and dry season along longitudinal section I . For the part between transverse sections I and II , COD negatively related with S, but close positively related with nitrate and phosphate, with confidence level 99% for nitrate.更多还原