| 长江口滨岸湿地环境信息系统的建立与应用 |
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| 引用本文： | 王军,许世远,陈振楼,毕春娟.长江口滨岸湿地环境信息系统的建立与应用[J].地理学报,2004,59(6):927-937. |
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| 作者姓名： | 王军 许世远 陈振楼 毕春娟 |
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| 作者单位： | 华东师范大学地理信息科学教育部重点实验室,上海,200062 |
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| 基金项目： | 国家自然科学基金项目(40131020，40173030)，上海市科委和环保局项目，上海市基础研究重点项目(02DJ14029)，教育部优秀青年教师资助计划~~ |
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| 摘 要： | 长江口滨岸湿地环境信息系统(YangtzeEstuaryTidalWetlandEnvironmentalInformationSystem,简称YETWEIS)是一个适用于长江口滨岸湿地环境管理与决策的软件系统。该系统基于MapObjects组件技术、数据挖掘技术和数学建模方法,以VisualBasic为开发平台,功能包括对长江口滨岸湿地环境信息的显示、编辑、查询检索、信息统计、空间分析、专题地图编制和环境质量评价等。本文首先介绍了YETWEIS的体系结构、实现技术和主要功能,然后重点对专题地图编制模块和环境质量评价模块的实现思想进行了阐述,同时对水体、沉积物、大气环境质量评价方法、污染因子权重确定方法、基于熵值法的环境质量综合评价方法进行了深入探讨,并利用YETWEIS分析了长江口滨岸湿地2002年重金属和持久性有机污染物的空间分布特征,并对长江口滨岸湿地2003年环境质量进行了系统评价。
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| 关 键 词： | 环境信息系统 长江口 组件技术 数据挖掘 熵值模型 |
| 收稿时间： | 2004-06-11 |
| 修稿时间： | 2004年6月11日 |
Realization and Application of Yangtze Estuary Tidal Wetlands Environmental Information System |
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| WANG Jun,XU Shiyuan,CHEN Zhenlou,BI Chunjuan.Realization and Application of Yangtze Estuary Tidal Wetlands Environmental Information System[J].Acta Geographica Sinica,2004,59(6):927-937. |
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| Authors: | WANG Jun XU Shiyuan CHEN Zhenlou BI Chunjuan |
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| Institution: | Key Laboratory of Geo-information Science of the Ministry of Education, East China Normal University, Shanghai 200062, China |
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| Abstract: | Yangtze Estuary Tidal Wetlands Environmental Information System (YETWEIS) is a comprehensive software system for environmental management and decision making in tidal wetlands of the Yangtze estuary. This software system was based on MapObjects COM technology, Data Mining technology, mathematics modeling method and Visual Basic language. It has many functions such as displaying, editing, querying, searching, spatial statistics and analysis, special decision map compiling, environmental qualitative evaluating. This paper outlined the system structure, implementation techniques, and facilities of YETWEIS at first. Then, it described the core modules of the software system--the special decision map compiling module and environmental qualitative evaluating model module in detail. At the same time it thoroughly discussed the environmental qualitative evaluation method, the method of calculating pollution indexes quality and environmental qualitative synthetic evaluation method based on information entropy. Finally, by using YETWEIS, this paper analyzed the heavy metal and persistent organic pollutants spatial distribution characteristics of the Yangtze estuary tidal wetlands in 2002, and provided a system assessment of Yangtze estuary environmental quality in 2003. |
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| Keywords: | environmental information system Yangtze estuary COM technology Data Mining information-entropy model |
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