滇西北纵向岭谷区并流三江河相关系研究  

Study on the river regime of the parallel three rivers in longitudinal gorge region of Northwestern Yunnan Province

作　　者：魏全伟[1] 王随继[2] 谭利华[3] 

机构地区：[1]河北省水环境科学重点实验室,河北石家庄050051 [2]中国科学院地理科学与资源研究所,北京100101 [3]北京师范大学地理学与遥感科学学院,北京100875

出　　处：《水资源与水工程学报》2008年第4期40-45,共6页Journal of Water Resources and Water Engineering

基　　金：国家重点基础研究发展计划"973"计划资助(2003CB415101)

摘　　要：河相关系研究做为河流研究中一个重要的部分得到普遍的重视。本文基于滇西北纵向岭谷区并流三江典型水文站点建站以来至1987年历年实测水文泥沙资料,根据Loepo ld和M oddock由冲积性河流总结出来的河相关系经验公式对实测水文泥沙资料进行分析,并结合野外勘测河道形态资料综合分析,得出该河相关系经验公式能在滇西北澜沧江等冲蚀性河流适用,并且公式中河相关系特征指数能很好的反映了山区河流窄深的特性。此外,对河相关系特征指数演变的研究表明其主要受控于由洪峰流量所决定的过水断面形态。该研究着眼河相关系理论的扩展,并为滇西北纵向岭谷区并流三江的河道综合整治提供了科学依据。The studies of this work it is analyzed runoff and annual chang the river regime have been put great emphasis on the river research. In the characteristics of annual suspended sediment load, annual water e of cross-section in selected four hydrological gauging stations of the parallel three rivers of the longitudinal range gorge region in the Northwestern Yunnan Province. The data were measured annually from 1955 to 1987. The trend of annual river regime, hydraulic geometry indexes of the three rivers has been obtained using the Loepold and Moddock＇s experiential equation. The experiential equation of Loepold and Moddoek is having more extensive application, not only for alluvial rivers, but for non-fluvial rivers of the mountainous area. Its hydraulic geometry indexes could reflect the narrow and deep features of the mountain rivers. Further more, the studies on changes of the hydraulic geometry indexes show that the indexes are controlled by the channel cross-section determined at the peak-floods. The study has focused on the expansion of the river regime theory and provides a scientific basis to the comprehensive rectification vertical of the parallel three rivers of the longitudinal range gorge region in the Northwestern Yunnan Province.

关 键 词：并流三江 河相关系 河相关系指数 滇西北纵向岭谷区 

分 类 号：TV147.2[水利工程—水力学及河流动力学]