入库径流成分划分及其变化分析  

Analysis and Characteristics of Inflow Runoff Components in Reservoir Catchment

作　　者：代俊峰[1,2,3] 韩培丽[2] 郑玉林 方荣杰[1,2] 

机构地区：[1]桂林理工大学广西矿冶与环境科学实验中心 [2]桂林理工大学环境科学与工程学院,广西桂林541004 [3]武汉大学水资源与水电工程科学国家重点实验室,武汉430072 [4]桂林市青狮潭水库灌区管理站,广西桂林541000

出　　处：《桂林理工大学学报》2013年第3期438-442,共5页Journal of Guilin University of Technology

基　　金：国家自然科学基金项目(51009031);广西自然科学基金项目(2013GXNSFBA019228);水资源与水电工程科学国家重点实验室开放基金项目(2010B069)

摘　　要：以桂林市青狮潭水库(大型)和金陵水库(中型)为研究对象,基于1958—1990年入库总径流的月流量资料,利用数字滤波技术对径流量进行基流分割,得到地表径流(直接径流)量和基流量。采用极值比和变差系数分析了地表径流和基流的年际变化特征,利用线性趋势线法和Kendall秩次相关法分析了地表径流和基流的变化趋势。结果表明:两个水库的入库总径流量均呈下降趋势而变化趋势不显著,地表径流呈上升趋势且变化不显著,基流量呈下降趋势,其中青狮潭水库的基流下降趋势不显著,而金陵水库的基流下降趋势显著。The change characteristics of inflow runoff in Qingshitan and Jinling reservoir are studied based on the flow data during 1958 - 1990. Digital filter technology is used in baseflow separation for inflow runoff. Then annual change characteristics of surface runoff and baseflow are analyzed with extreme ratio and coefficient of variation. Linear tendency linear method and Kendall rank correlation method are used to investigate the change trend of surface runoff and baseflow. Annual change of inflow runoff of the two reservoirs shows decrease trends, and not obvious decrease trends. The surface runoff of the two reservoirs tends to increase, but the not obvious change tendency. The baseflow of the two reservoirs shows decrease trends. The decrease trend of baseflow of Qingshitan reservoir is not obvious, but obvious for Jinling reservoir.

关 键 词：入库径流 地表径流 基流 数字滤波 

分 类 号：TV121[水利工程—水文学及水资源]