人民长江2015，Vol.46Issue(17)：18-23,6.DOI:10.16232/j.cnki.1001-4179.2015.17.005
鄱阳湖近60年天然入出湖径流特征分析
Analysis on characteristics of natural runoff into and out of Poyang Lake in recent 60 years
摘要
Abstract
On the basis of the measuring data from 7 gauging stations located at the entrances of the five rivers ( Ganjiang Riv-er, Fuhe River, Xinjiang River, Raohe River, Xiushui River) entering Poyang Lake and Hukou gauging station at outlet of Poy-ang Lake, the runoff of Lijiadu Station and Zhelin Station influenced by human activities was reduced, so the natural annual run-off time series of the 8 stations from 1953 to 2011were obtained. The variation characteristics of runoff of each station were ana-lyzed by using hydrological methods comprehensively. The results show that the natural annual runoff of Lijiadu Station increases roughly by 25% compared with the previous results, and the increase was more significant during dry year, which is consistent with the natural runoff evolution laws of the upper stations. The inter-annual variation and annual distribution of runoff of the main five rivers are similar, and the annual distribution of runoff of the stations is extremely non-uniform;the annual runoff se-ries of 8 gauging stations from 1953 to 2000 presents an increase trend, but shows a decreasing trend since 2000. The main peri-od of the annual runoff is between 33 to 35 years, which is accord with that of the annual precipitation of the basin. The results provide basis for reasonable utilization and scientific management of water resources of Poyang Lake.关键词
径流特征/趋势分析/Hurst指数/小波分析/鄱阳湖Key words
runoff characteristic/tendency analysis/Hurst exponent/wavelet analysis/Poyang Lake分类
建筑与水利引用本文复制引用
李微,李昌彦,吴敦银,吴英超,李荣昉..鄱阳湖近60年天然入出湖径流特征分析[J].人民长江,2015,46(17):18-23,6.基金项目
国家自然科学基金项目(51369011,41201033) （51369011,41201033）
国家社会科学基金项目(15CGL040) （15CGL040）
