So, it is an urgency that the application of GIS and RS is used to the study of ecological enviroment.

在这种背景下将最新的地理信息系统技术和遥感技术应用到生态环境研究就显得非常迫切。

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Aqristogensis has become main content of enviroment and health study to control population and raise quality in the future, even is a big problem concerning human prospects .

为控制人口数量，提高人口素质，优生也成为环境与健康研究的主要内容。

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