中文摘要：

水位作为重要的湖泊水文因子,对湖泊水动力过程、化学过程和生态过程具有重要的影响。根据2007～2008年鄱阳湖湖口水位、水环境实测数据,分析了湖口水位及水体各环境因子的变化特征,阐述了各水环境因子对水位变化的响应,并建立了水位与各水环境因子的回归方程。结果表明:湖口的水位及各水环境因子均呈季节性变化,湖口水位与长江水位(九江站)呈直线正相关;湖口的水位变化对其水体各环境因子均存在明显的影响,其中水体透明度随水位上升而增大,悬浮物、溶解氧、高锰酸盐指数、氮化物和磷化物浓度随水位上升而下降。

英文摘要：

Water level,an important hydrological factor in shallow lake,has great influence on hydrodynamics,ecological and chemical processes. Based on the field observations from 2007 to 2008,the seasonal change of water level and water environmental factors in Hukou area of Poyang Lake were analyzed. The regression equations between water level and water environmental factors were established. The analysis demonstrated that all the parameters showed an singinficant seasonal change. The positive correlation has been...