厦门海沧沿岸水域初级生产力及其与环境的关系

PRIMARY PRODUCTIVITY AND ITS RELATIONSHIP WITH ENVIRONMENTAL FACTORS IN COASTAL WATERS OFF HAICANG, XIAMEN

1994-1995年，对厦门海沧沿岸水域初级生产力进行4个季节调查。该水域初级生产力全年平均为194．6mgC·（m2·d）-1，呈双峰型的季节变化。与九龙江口相比，厦门西港年平均初级生产力略高，这与其叶绿素α含量较高有关。九龙江口的初级生产力受海水盐度影响较大，在不同季节均呈现沿径流方向递增的趋势。海沧沿岸水域氮磷浓度比值较高，其初级生产力受水域磷含量不足所限制。

Four seasonal investigations on the primary productivity in the coastal waters off Haicang, Xiamen were carried out in 1994 and 1995. The mean annual primary productivity in the waters is 194. 6mgC (m2 d) -1, characterized by double-peak variation. Compared to the Jiulong River Estuary, the mean annual primary productivity in the Xiamen West Harbour is slightly high, which is relative to its higher content of chlorophyll a. Affected by the variation of salinity of seawater, the primary productivity in the Jiulong River Estuary increases towards sea in the four seasons. [N]/[P] ratio in the coastal waers off Haicang is higher, showing tha the primary productivity in the waters is limited by the shortage of phosphate.