运用遥感和地理信息系统等技术，按照景观生态学的原理，对海南生态环境现状进行了评价，并对近十年来的变化进行了对比分析。
Evaluation and comparison of the eco environmental quality of Hainan Island was carried out with the aid of remote sensing and GIS and in line with the principle of landscape ecology.
并结合实例，探讨了地理信息系统在大气环境影响评价中的具体应用过程。
And with examples, this article has also probed into the application of GIS in the assessment of atmospheric environment influence.
环境评价是对环境质量优劣的定性评述，地理信息系统(GIS)是利用地图对空间数据进行管理的计算机系统。
Environmental Assessment is an evaluation of the environmental quality. Geographical Information system (GIS) is a computer system which manages the special data.
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