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简介:湿地被称为"地球之肾",具有独特的生态结构与功能.中国湿地面积约占全球湿地面积的10%,但近年来湿地面积逐渐萎缩,已造成了极为严重的生态恶果.因此总结以往湿地研究成果,确立包括遥感在内的各种湿地信息提取方法,形成包含各种湿地信息的湿地数据子库和管理操作这些数据的湿地信息系统,并确立湿地信息的共享与发布机制,从而加快湿地科研步伐,成为湿地与遥感科技工作者共同关注的问题.WebGIS技术是GIS融合Internet技术发展起来的新技术,具有对大批量数据进行有效的分析管理和快速的查询检索功能.基于WebGIS技术的中国沼泽信息系统的建立有效地满足了湿地科研和开发保护的需要.
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