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根据2007年5月长江口及邻近海域春季调查资料,探讨了该水域水体总磷(TP)、溶解磷(DP)和颗粒态磷(PP)的空间分布特征及其环境影响因素。结果表明:各形态磷水平分布由感潮河段、河口向外海呈降低趋势。表层不同区域,各形态磷对TP贡献不同:长江口门内,以DP为主,占TP59.77%;长江口邻近海域,PP占TP比例稍高于DP。各形态磷分布受不同环境因素影响。
Based on the spring investigation data of the Changjiang Estuary and its adjacent waters in May 2007, the spatial distribution of total phosphorus (TP), dissolved phosphorus (DP) and particulate phosphorus (PP) in the water and their environmental factors were discussed. The results showed that the distribution of phosphorus in all forms decreased from tidal reach and estuary to the outer sea. Different forms of the surface layer, the phosphorus contribution to the different TP: the Yangtze River Mouth door, mainly DP, accounting for TP59.77%; adjacent to the Yangtze River estuary, PP accounted for slightly higher than the DP ratio of TP. The distribution of phosphorus in various forms is affected by different environmental factors.