%0 Journal Article
%T 近60年来潦河径流变化特征分析<br>Analysis of the Runoff Characteristics Variation of Liao River in Recent 60 Years
%A 刘燕萍
%A 万丹
%A 赵军凯
%A 汤明
%J Journal of Water Resources Research
%P 500-508
%@ 2166-5982
%D 2021
%I Hans Publishing
%R 10.12677/JWRR.2021.105054
%X 在气候变化和人类活动的双重作用下，潦河径流过程发生了较为明显的改变。以近60年潦河万家埠水文站的逐月径流资料为基础，用不均匀系数、Mann-Kendall趋势检验、滑动t突变检验、功率谱周期分析等方法对径流量的年内分配、年际过程、年际突变和周期性等特征进行了分析。结果表明：万家埠站径流量的年内分配不均匀且呈单峰型；年径流量呈现显著上升趋势，并于1968年和1999年发生突变；年径流量存在21a的显著周期。<br />
Under the dual action of climate change and human activities, the runoff process of Liao River has significantly changed. Based on the monthly runoff data of Wanjiabu hydrological station in recent 60 years, the characteristics of annual distribution, interannual process, interannual abrupt change and periodicity of runoff were analyzed by using the methods of non-uniformity coefficient, Mann-Kendall trend test, sliding t abrupt change test and power spectrum period analysis. The results show the annual runoff distribution of Wanjiabu station not uniform with a unimodal pattern; the annual runoff has a significant upward trend and significant period of 21a, a sudden change is occurred in 1968 and 1999.
%K 径流特征，趋势，突变，Mann-Kendall检验法，功率谱<br>Runoff Characteristics
%K Trend
%K Mutation
%K Mann-Kendall Test
%K Power Spectrum
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=46299