城市湖泊富营养化的影响探讨——以金山湖为实例

The Change Trend of The Eutrophication in The Major Lakes——As Example of Jinshan Lakes

以金山湖为研究对象,建立了金山湖二维水流水质耦合模型,利用有限差分法离解方程,模拟了金山湖在东风作用下的流场,在此基础上模拟了水温、营养盐(总磷、总氮)、流速与浮游藻类生长的关系以及湖水水质变化趋势。

In this paper, the Jinshan Lake 2 -Demension Water Quantity and Water Quality Coupled Model was established on the basis of jinshan Lake construction projects. Dissociated equations were established by the finite difference method to simu- late the two - dimensional hydrodynamic characteristics of the Jinshan Lake under east wind. On the basis of this, the influence of water temperature, nutrients （phosphorus and nitrogen）and velocity on phytoplankton growth, and the change trend of the water quality were simulated.