论文部分内容阅读
洞庭湖位于长江中游荆江以南和湘、资、沅、澧四水控制站以下的平原、湖泊水网区，天然湖泊面积２６９１ｋｍ２，洪道面积１４８１ｋｍ２。由于泥沙淤积、人类活动的影响，使湖区的水情发生了变化。通过对湖区主要水文控制站的水位流量关系的分析，得到了近四十年来水情变化的一些规律，供有关部门参考。
Dongting Lake is located in the plain and lake water network below the Jingjiang River south of the middle reaches of the Yangtze River and below the four water control stations of Xiang, Ziyuan, Yuan and Huang. The natural lake covers an area of 2691km2 and the floodway covers an area of 1481km2. Owing to the siltation of sediment and the influence of human activities, the water regime in the lake area has changed. Through the analysis of the relationship between the water level and the discharge of the major hydrological control stations in the lake area, some laws of hydrological changes in the past 40 years have been obtained for reference by relevant departments.