本文提出了以遥感与地理信息系统为技术手段, 用有序数值阵列的方法建立数字环境模型的新思路, 具体阐述了建立数字环境模型的意义、方法和应用范围。并在建立数字环境模型的基础上, 对西藏“一江两河”地区的环境综合状况进行了定量评价。

This paper shows a new idea of establishing the digital environment model using remote sensing and GIS techniques. We used order numerical array for building the digital environment model,and quantitatively assessed the ecological environment situation of central Tibet.It focuses on model building and method realization. First, an idea of digital environment mode has been suggested Then, how to use this model to establish environmental monitoring and environmental quality assessment has been fourth discussed.