地理科学进展

地理科学进展 ›› 2003, Vol. 22 ›› Issue (5): 437-445.doi: 10.11820/dlkxjz.2003.05.001

• 论文 •    下一篇

基于DEM的分布式水文模型在大尺度流域应用研究

刘昌明1,2, 李道峰1, 田英3, 郝芳华1, 杨桂莲1   

  1. 1. 北京师范大学环境科学研究所水环境模拟国家重点实验室水沙科学教育部重点实验室,北京100875;
    2. 中国科学院地理科学与资源研究所,北京100010;
    3. Department of Civil Engineering,The University of Hong Kong,Hong Kong
  • 收稿日期:2003-06-01 修回日期:2003-08-01 出版日期:2003-09-24 发布日期:2003-09-24
  • 作者简介:刘昌明(1934-),男,湖南人,中国科学院院士,北京师范大学资环学院院长。从事水文水资源理论和方法研究。
  • 基金资助:

    国家重点基础发展规划项目[黄河流域水资源演化与可再生性维持机理,编号:G1999043601(973)]资助

An Application Study of DEM Based Distributed Hydrological Model on Macroscale Watershed

LIU Changming1,2, LI Daofeng1, TIAN Ying3, HAO Fanghua1, YANG Guilian1   

  1. 1. State Key Joint Laboratory of Environmental Simulation and Pollution Control,Key Laboratory for Water and Sediment Sciences of Ministry of Education,Institute of Environmental Sciences,Beijing Normal University,Beijing 100875;
    2. Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China;
    3. Department of Civil Engineering,The University of Hong Kong,Hong Kong
  • Received:2003-06-01 Revised:2003-08-01 Online:2003-09-24 Published:2003-09-24

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被引次数

245

摘要： 本文选取空间大尺度黄河河源区流域为研究对象,利用分布式水文模型进行径流量模拟,采用1976～1985年唐乃亥水文站逐年、月实测径流资料进行参数率定,确定模型的基本参数,得到了较好的模拟效果。模拟结果表明气候变化是引起黄河河源区径流变化的主要原因。在80～90年代的20年间,黄河河源区由气候变化引起径流减少62.11亿m3,占径流变化总量的108.72%,由土地覆被变化引起径流增加5.73亿m3,增加量占径流变化总量的10.03%。

关键词: DEM, SWAT模型, 分布式水文模型, 黄河河源区

Abstract: The paper selected the macro-scale areas of the source region of the Yellow River as an object and carried out discharge simulation with the distributed hydrological model,the SWAT model.Based on the analysis and process of DEM data,such as flow direction,a watershed borderline,a river network and sub-basins by automatically becoming,rivers,codes and areas of sub-basins,structure and topology constraint of the river network were gained with a format of grid cells.Annually and monthly measured runoff data of Tangnaihai hydrologic station from 1976～1985 were used to calibrate the simulation parameters and determine some basic parameters of the model.The simulation results are satisfactory and show that climate change is the main reason for discharge change of the source regions of the Yellow River.In twenty years of the 1980’s and the 1990’s,the discharge decrease due to climate change is 62.11×108m 3/s,which accounts for 108.72% of total discharge change,and the discharge increase due to land-cover change is 5.73×108m 3/s ,which accounts for 10.03% of that with grid cell.

Key words: DEM, distributed hydrological model, SWAT model, the source regions of the Yellow River

中图分类号: 

  • P333