Why do the Haruk people graze their animals in the mountains and change their livestock with the seasons?

In order to better raise livestock, herdsmen must rely on vegetation, so they have to change locations with the seasons, that is, "transitions."

Because the climate in the four seasons is different, the growth of vegetation changes, mainly due to the vertical zonation of the mountains, resulting in different vegetation and different temperatures at different altitudes in the mountains. As the seasons change, the temperature of the vegetation at different altitudes changes. In order to allow their livestock to adapt to the environment and grow better, herdsmen let their livestock grow in vertical pastures at different altitudes in different seasons in the Tianshan Mountains in central Xinjiang. In different parts of the mountain, due to different altitudes, the water and heat conditions change, thus forming different natural landscapes. Kazakh herdsmen make full use of the grassland resources of the Tianshan Mountains to arrange animal husbandry production, forming the characteristics of mountain animal husbandry of "grazing in all seasons" "Transition" culture.