HORTICULTURE

Detailed explanation-1: -Overgrazing typically increases soil erosion. With continued overutilization of land for grazing, there is an increase in degradation. This leads to poor soil conditions that only xeric and early successional species can tolerate.

Detailed explanation-2: -It comes as no surprise that overgrazing causes deforestation as well. With the animals feeding on all the foliage covering and protecting the soil, it is only natural that the lack of foliage would leave the soil completely bare.

Detailed explanation-3: -The classification system used in the preparation of continental desertification maps is based on four classes of desertification: slight, moderate, severe, and very severe.