4.2 Analysis of Lake Water Area Impact Factor
Poyang Lake is a classical river-connected drain lake. In terms of Fig 4 show the complex hydrological relationship of Poyang lake. This study considered runoff, precipitation, evaporation, lakebed, and water utilization. The groundwater does not select which exchange relationship is too complicated to obtain. In the analysis, using inflow and net outflow to express the influence of runoff, net outflow means the total runoff of five rivers into the lake minus runoff from the lake estuary, selected sediment to investigate the variation of the lakebed, and land use to investigate the water utilization.