Talking about the natural landscape and production and life characteristics of Tianshan Mountain. (Not too much, just grasp the center, 4 or 5 sentences)

Under normal circumstances, in the foothills, we can only see the desert full of gravel; On the low hillside, green grass begins to appear, and people will see flocks of sheep from time to time; Above the mountainside, dense forests are often distributed, mostly cold-resistant coniferous forests; Above the coniferous forest, you will see the grassland again.

Characteristics of production and life:

Herdsmen change from one pasture to another during the season change, which is called "transition".