淮河上游典型流域径流演变过程影响因素分析——以白莲崖流域为例  

Analysis on influencing factors of runoff evolution in typical watershed of the upper Huaihe River:Illustrated by the case of the Bailianya basin

作　　者：杨传清[1] 陈杭[1] 顾哲衍[1] 王蔚 鞠靖[1] 陈立冬 朱华刚 YANG Chuanqing;CHEN Hang;GU Zheyan;WANG Wei;JU Jing;CHEN Lidong;ZHU Huagang(Jiangsu Surveying and Design Institute of Water Resources Co.Ltd.,225127,Yangzhou,Jiangsu,China;Nanjing Hydraulic Research Institute,210029,Nanjing,China)

机构地区：[1]江苏省水利勘测设计研究院有限公司,江苏扬州225127 [2]南京水利科学研究院,南京210029

出　　处：《中国水土保持科学》2020年第1期110-116,共7页Science of Soil and Water Conservation

基　　金：国家自然科学基金“基于多角度遥感信息的土壤侵蚀模型植被覆盖与管理措施因子C定量反演研究”(31200534)。

摘　　要：研究白莲崖流域径流变化特征及其与环境因子的关系,可为区域防洪减灾、工农业生产及水土资源的合理利用提供决策依据。利用Mann-Kendall检验、Yamamoto信噪比及交叉小波变换等方法对白莲崖流域1970—2009年径流变化特征及其与环境因子的关联性进行了分析。结果表明:径流年内分配不均,主要集中在6、7月份,在1983年和2004—2005年径流发生2次突变;径流存在0.5~3年的小周期变化现象;径流和降水在1986—1996年1~2年以及1998—2002年2.5~4年周期上具有强关联性,径流对降水响应较快,大多数高能量时频域中表现为同相位关系;径流和气温的相互影响主要集中在1988—2000年1~3.8年周期上,气温的相位优先于径流,径流对气温的响应具有时滞性;研究区内径流总体上呈减少趋势,主要下垫面因素为森林面积的增加和农田面积的减少。随着气候和下垫面状况的变化,白莲崖径流年际年内都发生了显著变化,与不同气候因子表现出不同关联特性。[Background]For last 30 years,the global temperature rose with the influence of the precipitation spatial distribution pattern.Economic and social development,the spatial and temporal of the runoff varied significantly,and its evolution also showed a strong randomness at the same time.The Bailianya river basin is located in Dabie mountain,which is the watershed between Yangtze River basin and Huaihe River basin.The study on the characteristics of runoff change in the Bailianya river basin and its relationship with environmental factors may provide decision-making basis for regional flood control and disaster reduction,industrial and agricultural production and rational utilization of soil and water resources.[Methods]The variation characteristics of the runoff of Bailianya basin and its correlation with major environmental factors from 1970 to 2009 was detected through the Mann-Kendall test,Yamamoto method of signal-to-noise ratio and the cross wavelet transform analysis.The relationship between time series of environmental factors and runoff in different frequency domain was revealed using cross wavelet analysis.The response of runoff to the change of underlying surface elements was also clarified based on the analysis of remote sensing images in 3 stages.The coupled oscillations of runoff time series,precipitation and air temperature in Bailianya river basin were investigated from the frequency domain,which reflected the correlation between runoff and climatic factors on different time scales.[Results]1)The distribution of runoff was uneven during the year and mainly concentrated in June and July.The 2 abrupt changes of runoff occurred in 1983 and 2004-2005.Runoff demonstrated a small cycle of 0.5-3 year(s).2)There was strong correlation between runoff and precipitation at a cycle of 1-2 year(s)in 1986-1996 and at a cycle of 2.5-4 year(s)in 1998-2002.Runoff responded to precipitation fast with most high energy time-frequency domain characterized by phase relationship.3)Interactions between the runoff and the te

关 键 词：径流 环境因子 交叉小波 

分 类 号：TV121[水利工程—水文学及水资源]