黄河宁蒙段塌岸危险性评价  

Risk Assessment of Bank Failures in Ningxia-Inner Mongolia Reache of the Upper Yellow River

作　　者：王静[1] 代加兵[1] 刘宏远[1] 舒安平[2] 张科利[1] 

机构地区：[1]北京师范大学地理学与遥感科学学院,北京100875 [2]北京师范大学环境科学学院,北京100875

出　　处：《人民黄河》2015年第8期48-51,共4页Yellow River

基　　金：国家重点基础研究发展计划项目(2011CB403304)

摘　　要：选取黄河宁蒙段青铜峡至头道拐河段作为研究区域,以1 km为单位将全河段划分为835段,采用2010年TM遥感影像、2006—2010年黄河水文资料并结合Google影像,利用层次分析法建立塌岸危险性评价指标体系,对黄河宁蒙段两岸的塌岸危险性进行评价。结果表明:黄河上游宁蒙河段右岸塌岸危险性高于左岸,在三湖河口至头道拐段塌岸危险性高的河段以凹岸段为主;塌岸危险性较高的河段集中在银川至石嘴山段、乌海至磴口段以及昭君坟水文站附近河段,危险性最大的河段在昭君坟附近;在青铜峡水文站以下50 km河段和石嘴山水文站至乌海市乌达区的峡谷河段塌岸危险性最低;左右岸在石嘴山至巴彦高勒河段塌岸危险性的变化幅度最大。The study selected the Ningxia-Inner Mongolia reach of the upper Yellow River with a length of 835 km as a study area,and divided it into 835 sections at intervals of 1 km. Based on the TM remote sensing of 2010 and the hydrological data of the Yellow River from 2006 to 2010,the study established an evaluation criterion system of bank failures with the method of Analytic Hierarchy Process （AHP）to assess the risk of bank failures in the Ningxia-Inner Mongolia reach of the Yellow River. The results indicate that the risk of the right bank of the reach is higher than that of the left bank on the whole. The reaches of high risk are in Ningxia-Shizuishan,Wuhai-Dengkou and Zhaojunfen, and the highest risk of bank failures appears in Zhaojunfen reach while the lowest risk of bank failures occurs in the 50 km reach downstream Qingtongxia Hydrological Station and the valley reach from Shizuishan Hydrological Station to Wuhai. The risk of bank failures of both banks changes violently in the reach of Shizuishan-Bayan Gol.

关 键 词：河流塌岸 危险性评价 黄河宁蒙段 

分 类 号：TV14[水利工程—水力学及河流动力学] TV882.1