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 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.
在高山地区和许多地区的低温季节里，植物的冷害是一个普遍的农业灾害。
Chilling injury is a prevalent agricultural disaster in alp zones and low temperature seasons of many areas.
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