YANG Jing-hui,ZHANG Wan-chang.Research Progress on SWAT Model and Its Application on Water Environmental Nonpoint Source Pollution[J].Research of Soil and Water Conservation,2009,16(05):260-266.
SWAT模型及其在水环境非点源污染中的应用研究进展
- Title:
- Research Progress on SWAT Model and Its Application on Water Environmental Nonpoint Source Pollution
- Keywords:
- SWAT; non-point source pollution; distributed model; water environment
- 分类号:
- X522
- 摘要:
- 非点源污染是水环境污染的主要来源之一，其过程机理复杂，应用水环境污染模型模拟是研究非点源污染的重要手段。SWAT模型是国际上著名的分布式流域水环境模型之一，结合了遥感（RS）、地理信息系统（GIS）技术，能够准确、长时间段连续地模拟复杂流域的各种水环境过程以及气候变化、土地利用类型、管理措施对流域水平衡和非点源污染的影响，为监测、评价、研究流域水环境非点源污染状况提供了强大的支持平台。在大量调研国内外相关文献的基础上，围绕模型的主要标志性改进及应用成果介绍了SWAT模型的发展历程和现状，论述了模型应用于水环境非点源污染研究的几个主要方面和国内外研究新进展，分析了目前国内应用SWAT模型进行水环境非点源污染研究存在的问题，并对SWAT非点源污染子模型的发展趋势做了展望，以推广这一先进模型在国内的应用范围，提高非点源污染模拟、监测、评价工作的效率及结果的可靠性。
- Abstract:
- As one major causes of water environmental contamination,Non-point Source Pollution (NPS) owning to its complex dynamic mechanism has drawn much attention from researchers to adopt water environmental pollution models as major means for simulation studies.Soil and Water Assessment Tool (SWAT),developed by U.S.Department of Agriculture (USDA),has gained international acceptance as an advanced,interdisciplinary,distributed water environmental model and a strong platform for simulation,investigation and assessment of watershed NPS.Being integrated with techniques of Geographic Information Systems (GIS) and Remote Sensing (RS),SWAT is distinguished for its capabilities of comprehensively,continuously,reasonably simulating various long-term water environmental processes in complex meso-or macro-scale watersheds,as well as predicting the impacts of climate change,management practices,Land use and cover change (LUCC) on catchments’ water balance and NPS.On the basis of extensive investigation of SWAT related literatures published at home and abroad,with great efforts concentrated on tracking the periodical remarkable improvements of SWAT,this paper systematically summarized the progress of model developing status and its current advancements.Discussions on successful applications of the model in various watersheds on NPS studies and state-of-the-art research progress were given together with the analysis of main problems and difficulties existed in application practices of SWAT on research of NPS in China.Additionally,future development and possible improvements for the NPS sub-model of SWAT were prospected.The paper was aimed at intensifying appropriate applications of SWAT on NPS studies in China to improve reliability of model simulating results and efficiency of NPS research practices so as to provide quantitative,scientific decision supports for Best Management Practices (BMPs).
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备注/Memo
收稿日期:2009-5-8;
基金项目:国家水体污染控制与治理科技重大专项（2008ZX07010-010）;中科院“百人计划”择优支持项目（8-057493）;国家重点基础研究发展规划973项目（2006CB400502，2001CB309404）
作者简介:杨菁荟(1985-)，女，甘肃省兰州市人，硕士研究生，主要从事遥感与地理信息系统在水文学中的应用研究。E-mail：yangjh.nju@gmail.com
通讯作者:张万昌(1966-)，男，河南省永城县人，教授，博士生导师，主要从事遥感与地理信息系统及其在全球变化及水文水资源中的应用研究。E-mail：zhangWC@nju.edu.cn