基于谷歌地球的湫水河流域暴雨洪水变化分析  

Analysis of Causes of Storm-Flood Changes of Qiushui River Basin Based on Google Earth

作　　者：刘龙庆[1] 狄艳艳[1] 张荣刚[1] LIU Longqing,DI Yanyan,ZHANG Ronggang(Hydrological Bureau,YRCC,Zhengzhou 450004,Chin)

机构地区：[1]黄河水利委员会水文局,河南郑州450004

出　　处：《人民黄河》2018年第6期29-33,37,共6页Yellow River

基　　金：水利部公益性行业科研专项(201501004)

摘　　要：采用统计学方法研究了黄河中游支流湫水河流域1960—2015年的暴雨洪水变化趋势,并基于谷歌地球软件提供的近期卫星遥感图片分析了库坝、梯田以及林草等在产/汇流和暴雨洪水变化过程中的不同作用。结果表明:水库及淤地坝系阻滞了河道汇流,梯田及林草等植被覆盖率的提高减小了流域产流,而库坝的增多对洪水量级和发生频次的减小起着最主要的作用。建议继续加强以淤地坝系为主的小流域沟道治理力度,进一步降低黄土高原地区洪水的发生频次。This paper studied the changes of storm floods in Qiushui River watershed since 1960 applying statistical methods,analyzed the different roles of reservoir dams,terraced fields,forest and grass in the process of change of storm runoff and flood based on the satellite remote sensing images provided by Google Earth. The results show that reservoirs and warping dam system have blocked the confluence of channels,the increasing of terraced fields and grass vegetation coverage have reduced the runoff-producing of the watershed and the increase of reservoirs and warping dams has played a major role in reducing the flood magnitude and frequencies. It suggests to continually improving the channels of small watersheds by strengthening warping dam system as the main and further reducing the flood frequencies of the loess plateau region.

关 键 词：谷歌地球 下垫面 水土流失治理 暴雨洪水 湫水河流域 

分 类 号：TV122[水利工程—水文学及水资源] TV882.1