Flow Simulation in a Typical Debris Flow Basin of Jiangjia Canyon

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Flow Simulation in a Typical Debris Flow Basin of Jiangjia Canyon
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                        GUO Xiao-junGUO Xiao-jun
Key Laboratory of Mountain Hazards and Surface Process, Chinese Academy of Sciences, Chengdu Institute of Mountain Hazards and Environment, CAS, Chengdu, Sichuan 610041, China;Graduate University of the Chinese Academy of Sciences, Beijing 100049, China
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CUI PengCUI Peng
Key Laboratory of Mountain Hazards and Surface Process, Chinese Academy of Sciences, Chengdu Institute of Mountain Hazards and Environment, CAS, Chengdu, Sichuan 610041, China;Graduate University of the Chinese Academy of Sciences, Beijing 100049, China
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ZHU Xin-huaZHU Xin-hua
Key Laboratory of Mountain Hazards and Surface Process, Chinese Academy of Sciences, Chengdu Institute of Mountain Hazards and Environment, CAS, Chengdu, Sichuan 610041, China;Graduate University of the Chinese Academy of Sciences, Beijing 100049, China
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Affiliation:ZOU Xin-bo1,XIA Wei-sheng1,HUANG Dao-you2(1.Hunan Normal University,College of Resources and Environmental Sciences,Changsha,Hu'nan 410081,China,2.Chinese Academy of Sciences,Subtropical Institute of Agricultural Modernization,Hu'nan 410125,China)
Clc Number:TV211.1
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Abstract:

The flow data of Jiangjia Canyon from 2008to 2009was collected and annual variations of the stream flow were analyzed.A database of soil,land use and meteorological parameters was built based on the field survey and experiments,and monthly flows and daily flows were then simulated using the SWAT model in the canyon.The simulations of monthly flows were relatively better in the dry seasons than in the rain seasons,owing to the lack of observations during the rainy seasons when debris flows frequently occurred.Daily flows were simulated separately for the dry seasons and the flood period.The Nash efficiency and correlation coefficients of daily flow simulation in both rain season and dry season were higher than 0.7,which implies that the model can be successfully used in this area.This paper contributes to the study of rainfall-runoff mechanism in Jiangjia Canyon.

Key words:flow characteristics;SWAT model;debris flow;Jiangjia Canyon

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郭晓军,崔鹏,朱兴华.典型泥石流流域蒋家沟的降雨-径流模拟[J].水土保持通报英文版,2011,(1):175-179

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Received:May 05,2010
Revised:July 30,2010
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Online: October 25,2012
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