The influences on the simulation results of ecological dynamics model caused by the grid resolution
格网分辨率对生态动力学模型模拟结果的影响

Taking the ecological experimental results on 4 April, 2009, in Taihu Lake, as the basic dataset, the study has discussed the different of simulation results of NPZD, ecological dynamics model, when the resolutions of grid were 15m, 20m, 25m, and 30m. According to the results carried out by this study, it is found that the relationships between the grid resolution and the average concentration and root mean square concentration of phosphorus, chlorophyll-a, and suspended sediment simulated by NPZD are fairly complicated, and it is difficult to be described by a sample statistical model. However, as a whole, the grid resolution can effect the average concentration, root mean square concentration, and spatial distribution simulated by NPZD. It is important to select a properly scale, when uses the NPZD to simulate the state of ecological variables in practical application.