九龙江口、厦门西海域磷的生物地球化学研究——Ⅰ.水体中溶解态磷与颗粒态磷的含量、分布与转化
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摘要: 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.
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