文章摘要
李志强,朱超霞,刘贵花.SWAT模型下基于DEM的水文响应单元划分 ——以濂水流域为例[J].江西水利科技,2017,(6):438-442
SWAT模型下基于DEM的水文响应单元划分 ——以濂水流域为例
Hydrological response unit division based on DEM in SWAT Model:A case study of Lian River Basin
  
DOI:
中文关键词: SWAT模型  濂水流域  水文响应单元划分  适度指数法
英文关键词: SWAT model  Lianshui Basin  Hydrological response unit division  Moderate index method
基金项目:
作者单位
李志强 江西师范大学地理与环境学院 
朱超霞 江西师范大学地理与环境学院 
刘贵花 江西师范大学地理与环境学院 
摘要点击次数: 418
全文下载次数: 390
中文摘要:
      本文在SWAT模型的基础上,以赣江上游濂水流域为研究区域,设计了中小流域水文响应单元的划分方法.研究以DEM数据为基础,利用TM影像和Google Earth的矢量化数据为参考,采用适度指数法模拟出符合濂水流域的函数拟合,确定河网划分阈值,保障河网划分的准确度.结合土地利用数据、土壤数据和坡度数据将濂水流域划分为49个子流域和181个水文响应单元.通过对濂水流域水文响应单元的划分,避免了人为经验生成河网而导致子流域和水文响应单元划分的不准确性,为濂水及赣江上游子流域的分布式模型模拟提供参考.
英文摘要:
      Based on the SWAT model,this paper designs the method of hydrological response unit in the middle and small watersheds based on the Lian River Basin in the upper reaches of the Gan River.Based on the DEM data,using the vector data of TM image and Google Earth as reference,the modal exponential method is used to simulate the fitting of the hydrological basin,and the threshold of river network is determined to ensure the accuracy of river network division.The Lian River Basin is divided into 49 sub-basins and 181 hydrological response units in combination with land use data,soil data and slope data.Based on the division of the hydrological response unit of the Lian River Basin,the inaccuracy of the sub-basin and the hydrological response unit is induced by the artificial experience of the river network,which provides a reference for the simulation of the distributed model of the sub-basin in the upper reaches of the Lian River and the Gan River.
查看全文   查看/发表评论  下载PDF阅读器
关闭