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1987年3月至1988年12月笔者在九龙江口、厦门西海域调查了颗粒态磷(PP)、溶解无机磷(DIP)、溶解有机磷(DOP)、总磷(TP)及其他水化学要素。研究结果表明,九龙江水携带入海的磷大部分以颗粒态存在,DOP占有相当的比例。各种形态磷的分布有明显的区域性差异。在河水海水混合过程中,PP发生明显转移,在S=15～20水域,达最低值。悬浮颗粒物上吸附的磷在盐度增大时解吸是DIP随S增大而增大的主要原因。该海区生物必需的磷主要不是来自九龙江水的供给,而是从海区磷的再生、转化中得到补充。
From March 1987 to December 1988, the authors investigated the effects of particulate matter (PP), dissolved inorganic phosphorus (DIP), dissolved organic phosphorus (DOP), total phosphorus (TP) and other water chemical elements . The results show that most of phosphorus transported into the sea by the water in Jiulongjiang River exists in the form of particles, accounting for a considerable proportion of DOP. The distribution of various forms of phosphorus have obvious regional differences. During the mixing of river water and sea water, PP obviously migrated, reaching the lowest value in S = 15 ~ 20 waters. The desorption of phosphorus adsorbed on suspended particulates increases with increasing salinity, which is the main reason for the increase of DIP as S increases. The marine essential phosphorus is not mainly from the supply of Jiulong River water, but is supplemented by the regeneration and transformation of phosphorus in the sea.