What is the scientific reason for grazing in four seasons?

It depends on the season, temperature and grassland conditions. If we are still in the grassland with higher terrain in winter, the safety of people and animals will not be guaranteed and there will be no grass for livestock to eat.

Divided into: summer, autumn and winter.

Summer field: On the alpine grassland in summer, all kinds of plants grow rapidly in the short summer. Herdsmen usually go out early and return late, so that livestock can make full use of the fast-growing pasture, which has a short growth period and should be fully utilized.

Autumn field: At the end of August and the beginning of September, the weather in the alpine grassland (that is, summer field) is getting colder, and a heavy snow will cover the grassland. At this time, the grass stopped growing and turned yellow. So the herdsmen drove their livestock into the mountain grassland, also called autumn grassland.

Winter field: after using forage resources in autumn field, it will enter winter pasture in late June and 5438+ 10. Generally, it is a low-lying flat land or ravine, sheltered from the wind and sunny, with a mild climate. The pasture is mostly dry perennial grass, which turns green late, withers late and is soft. After a warm season, it has grown by 20 cm to 30 cm, enough for domestic animals to eat in the long winter.