HORTICULTURE

Detailed explanation-1: -Migration from mountains to the plane due to sheep herding is called transhumance. It is the action or practice of moving livestock from one place to other for the sake of grazing seasonally. It usually follows seasonal cycle, typically to lowlands in winter and highlands in summer.

Detailed explanation-2: -Transhumance in the Pyrenees involves relocation of livestock (cows, sheep, horses) to high mountains for summer months, because farms in the lowland are too small to support a larger herd all year round. The mountain period starts in late May or early June, and ends in early October.

Detailed explanation-3: -A characteristic example is the movement of the Arab people the Baggara from western Sudan to the south during the dry period to appropriate pastureland and afterwards to the north during the rainy season to avoid the mud and biting insects and to take advantage of the brief vegetation of the semidry pastureland.