大亚湾海域海水中各种形态磷的研究

根据 1999年 5月 (春季 )的调查 ,统计了大亚湾海域海水微表层、次表层、表层和底层水中各种形态P的含量 ,计算了各种形态P分别占总磷 (TP)和总溶解磷 (TDP)的百分比 ,讨论了各种形态P之间的相互关系 ,分析了影响颗粒磷 (PP)和溶解磷 (TDP)分布的环境因素。结果表明 ,大多数站位微表层对各种形态P产生了富集 ,但是富集概率有所差别 ;大亚湾海域水中P ,除微表层主要以PP形态存在外 ,其余水层均主要以TDP形态存在 ,TDP在所有水层中均以DOP为主要存在形态 ;各个水层中PP是影响TP分布变化的主要因素 :影响PP在微表层、次表层和表层分布变化的主要环境因素为COD ,在底层则为叶绿素a与COD的叠加 ;影响TDP在微表层和底层分布变化的主要环境因素为盐度 ,在次表层和表层则为COD。

Various speciations of phosphorus in seawater of Daya Bay

Based on the investigation of May 1999 (spring) the contents of various speciations of P in sea surface microlayer, sea surface hipolayer, sea surface and sea bottom were totaled; the percentage of various speciations of P in total P (TP) and total dissolved P (TDP) were calculated; the relations of various speciations of P were discussed; the environment factors which affected TP and TDP were analyzed. Results showed there were enrichment effects on various speciations of P in sea surface microlayer at most stations but the enrichment probabilities were different. Among various speciations of P in sea water at Daya Bay particle P was the main existing form in sea surface microlayer while dissolved P in all water layers. The effect of particle P on the distribution of TP was the main factor. The main environment factors which affected the distribution of TP were: COD in sea surface, sea surface microlayer, sea surface hipolayer and sea surface; Chl.a and COD in sea bottom. The environment factors which affected the distribution of TDP were: S in sea surface microlayer and sea bottom; COD in sea surface and no marked factors in sea surface hipolayer and sea surface.