|
|||||
|
|
| SWAT模型的原理、结构及应用研究 | |
| 引用本文： | 王中根,刘昌明,黄友波.SWAT模型的原理、结构及应用研究[J].地理科学进展,2003,22(1):79-86. |
| 作者姓名： | 王中根 刘昌明 黄友波 |
| 作者单位： | 1. 中国科学院地理科学与资源研究所,北京,100101 2. 武汉大学水利水电学院,武汉,430072 |
| 基金项目： | 国家重点基础研究发展规划项目(G19990436-01)，中科院知识创新工程项目课题(KZCX1-10-03) |
| 摘 要： | SWAT(SoilandWaterAssessmentTool)是一个具有很强物理机制的长时段的流域分布式水文模型。它能够利用GIS和RS提供的空间数据信息,模拟复杂大流域中多种不同的水文物理过程,包括水、沙、化学物质和杀虫剂的输移与转化过程。本文着重探讨SWAT模型的水文学原理和模型的基本结构与独特的分布式运行控制方式,并将其成功应用于西北寒区(黑河莺落峡以上流域)的分布式日径流过程的模拟。 |
| 关 键 词： | SWAT 分布式水文模型 黑河流域 应用研究 |
| 文章编号： | 1007-6301(2003)01-0079-09 |
| 收稿时间： | 2002-10-01 |
| 修稿时间： | 2002年10月1日 |
The Theory of SWAT Model and its Application in Heihe Basin |
|
| Institution: | 1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China; 2. Hydraulic and Electric Engineering Department of Wuhan University, Wuhan 430072, China |
| Abstract: | SWAT (Soil and Water Assessment Tool) model is a river basin, or watershed, scale model developed to predict the impact of land management practices on water, sediment, and agricultural chemical yields in large, complex watersheds with varying soils, land use, and management conditions over long periods of timeThe model is physically based and enables users to study long term impacts This paper mainly introduces and discusses the issues of the hydrological theory, the structure and functions of SWAT modelSWAT separates the hydrology of a watershed into two major divisionsThe first division is the land phase of the hydrologic cycle which controls the loadings to the main channel in each subbasinThe second division is the water or routing phase of the hydrologic cycle which can be defined as the movement of water, sediments, etcthrough the channel network of the watershed to the outletSWAT uses a command structure for routing runoff and chemicals through a watershedUsing a routing command language, the model can simulate a basin subdivided into grid cells or subbasin In case study, SWAT model was used to simulate the hydrology of Heihe (Yingluo Valley) Basin in the cold Northwest ChinaFirst, Based on DEM, Heihe (Yingluo Valley) Basin was subdivided into four subbasinsBy building user soil type database and modifying land use coding, the model made a good runoff simulation result on a daily time step,and the model NSE (Nash Sutcliffe error judge standard) is up to 083So. |
| Keywords: | SWAT Distributed hydrological model Hehei basin Application Study |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
| 点击此处可从《地理科学进展》浏览原始摘要信息 | |
| 点击此处可从《地理科学进展》下载免费的PDF全文 | |