长江口海域营养盐通量的估算

The estimation of nutrition fluxes in the Yangtze River Estuary

运用LOICZ通用的生源要素通量估算法BOX模型,估算长江口主要营养盐物质DIP和DIN的通量,定量分析了长江口门水域DIP和DIN的行为过程,DIP在口门内通过非保守性行为而离开系统,而在口门外表现出完全相反的过程,DIP通过生物和非生物过程进入系统;DIN在这两个区域都通过非保守性行为进入系统,充当"源"的作用;论证了长江口海域DIP和DIN营养盐通量主要由径流量所控制;盐度分布、营养盐浓度也是营养盐通量控制因素之一。

The paper was tested by the LOICZ biogeochemical element estimation of BOX model in the Yangtze River Estuary. It estimated the nutrition of DIP and DIN. Fluxes of DIP and DIN to behavior process is quantitatively analyzed. DIP is deviate from the system by the non-conservative behavior process inside of the Yangtze River estuary. It is reverse phenomenon outside of the Yangtze River estuary. DIP is entering the system by the biological and nonbiological process. DIN is entering the system by the non-conservative behavior process in this area. It acts as the effect of source. It was testified that the fluxes of DIP and DIN are controlled by the current. The fluxes of nutrition are also influenced by the salinity and concentration.