近50年十好桥水文站径流变化特性分析  

Runoff Variation Characteristics of Shihaoqiao Hydrological Station in the Past Five Decades

作　　者：周栋 罗黄来 张凡 Zhou Dong;Luo Huanglai;Zhang Fan(Bureau of Hydrology and Water Resources of Xianning City,Xianning 437100,China)

机构地区：[1]湖北省咸宁市水文水资源勘测局,湖北咸宁437100

出　　处：《长江技术经济》2022年第5期40-45,共6页Technology and Economy of Changjiang

摘　　要：选用十好桥水文站1970—2020年径流资料,采用线性倾向估计法、滑动平均法、滑动t检验法、Yamamoto法、有序聚类法、Mann-Kendall检验等方法,分析十好桥水文站近50年径流变化特性。结果表明:十好桥水文站年径流量呈增加趋势,年径流量倾向率为0.288×10^(8)m^(3)/(10a)。十好桥水文站年径流量在1986年左右出现了突变,突变不明显,突变原因是上游修建了景观拦河闸,引起径流特性的变化。The characteristics of runoff variation at Shihaoqiao hydrological station in the city of Xianning are examined based on the runoff data from 1970 to 2020 by using linear tendency estimation,moving average method,sliding t-test method,Yamamoto method,ordered clustering method and Mann-Kendall method.Results demonstrate that the annual runoff at Shihaoqiao hydrological station has presented an increasing trend with an annual runoff tendency rate of 0.288×108 m^(3)/(10a).The annual runoff underwent an insignificant abrupt change around 1986 as a result of the construction of landscape sluice in the upstream.

关 键 词：径流变化 线性倾向估计、滑动平均 滑动t检验 Yamamoto 有序聚类法 MANN-KENDALL 咸宁十好桥 

分 类 号：TV121.4[水利工程—水文学及水资源]