作　　者： ; ; ; ;

机构地区： 厦门大学

出　　处： 《海洋学研究》 2012年第1期59-66,共8页

摘　　要： 采用14C与15 N核素示踪方法,于2008年12月—2009年1月对东海和南海北部海域的初级生产力和新生产力的分布进行了研究,并对其环境制约机制进行了初步探讨。结果表明:调查海域叶绿素a质量浓度在空间分布上呈近岸高、外海低,表层高、真光层底部低的分布趋势。东海海域的积分初级生产力(IPP)和积分新生产力(INP)均低于南海北部海域,f比值为东海海域>南海北部海域,东海海域新生产力(NP)对初级生产力(PP)的贡献大于南海北部海域。浮游植物对氨盐的吸收速率(ρNH4)显著大于对硝酸盐的吸收速率(ρNO3)(P<0.05)。水柱平均新生产力与环境参数的相关性分析结果表明,营养盐是影响冬季调查海域新生产力的主要因素,温度和盐度为次要因素。 14C and 15N nuclide tracer methods were used to measure new productivity and primary productivity of East China Sea and northern South China Sea in the winter of 2008—2009,and their environmental restraint mechanisms was discussed preliminarily.The results show that the distribution of chlorophyll a mass concentration is higher nearshore than offshore,and higher in the surface layer than that at the bottom of the euphotic layer.The integrated primary productivity and integrated new productivity are lower in East China Sea than that in northern South China Sea,but the f ratio in East China is lager than that in northern South China Sea,which indicated that the contribution of the new productivity to the primary productivity was greater in East China Sea than northern South China Sea.The ρNH4 is significantly greater than ρNO3（P 0.05）.The correlation analysis between the new productivity and environmental parameters shows that nutrients are the major factors which influence the new productivity in winter in the study area while temperature and salinity is the secondary impacting factors.

关 键 词： 初级生产力 新生产力 比值 东海 南海北部

领　　域： [生物学] [生物学]