论述了GIS的发展趋势和国外研究进展，并详细阐述了GIS在环境科学中的应用。
Description of the trend of GIS development and research status as well as the GIS appliance in the field of environment assessment is presented.
在过去的十年时间里，环境危急形势的研究引起了科学界的兴趣和关注，亦取得了显著的进展。
Over the past decade, the research of environmental critical situation has captured the interests of the scientific community and has made considerable headway.
在过去的十年时间里，环境危急形势的研究引起了科学界的兴趣和关注，亦取得了显著的进展。
Over the past decade, the research of environmental critical situation has captured the interests of the scientific community and has made considerable headway.
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