论文部分内容阅读
以丹江口水库下游黄家港水文站1956—1997年径流资料为研究对象,采用Kendall秩次相关检验、有序聚类分析等方法对年径流变化进行趋势、跳跃分析,并对汛期、非汛期径流变化情况进行分析。结论表明,丹江口水库的运行使汉江中下游年径流量有一定的减少趋势,同时对年内汛期、非汛期径流量产生较大影响。
Taking the runoff data of Huangjiagang Hydrological Station in the downstream of Danjiangkou Reservoir from 1956 to 1997 as the research object, the trend and jump of annual runoff change were analyzed by Kendall rank correlation test and orderly cluster analysis, and the runoff data of flood season, non-flood season Analysis of changes. The conclusion shows that the operation of Danjiangkou reservoir will reduce the annual runoff in the middle and lower reaches of the Hanjiang River while it will have a significant impact on the runoff in flood season and non-flood season in the year.