ecoregion

The result shows that there are five main ecoregion types in Lhasa area, namely valley agriculture zone, mountain steppe, alpine meadow, snow and ice and rock, and lake.

结果表明，拉萨地区的主要生态环境类型包括河谷农业类型、山地草原类型、高山草甸类型及高山裸岩及冰雪类型。

The least is the loamy and desert ecoregion in Southern of Tarim Basin ( Rhodococcus Nocardia).

最少为塔里木东南部壤质荒漠生态小区（I-5-b），分布菌属有红球菌属、诺卡氏菌属。

On the basis of specialist experience and principle of ecological zones, the intelligent recognition model of ecoregion boundary is developed with the grid generation methods on the GIS platform.

本文基于专家知识经验和生态分区原则，以地理信息系统为建模平台，运用栅格生成技术，对生态区边界智能识别模型进行机理探讨和框架构建。