WORLD HISTORY

Detailed explanation-1: -Deforestation means, cutting down of trees which affects the soil properties. The fertile top layer is removed which exposes the lower layers which have less humus and is less fertile. Due to this, the fertile land gets converted into deserts and this process is called desertification.

Detailed explanation-2: -The definition of desertification is when fertile land in arid conditions becomes drier, transitioning to a desert environment. For such a transition to be considered desertification, the land must: Undergo land degradation – land’s loss of current or future productive capabilities.

Detailed explanation-3: -Human activities that contribute to desertification include the expansion and intensive use of agricultural lands, poor irrigation practices, deforestation, and overgrazing. These unsustainable land uses place enormous pressure on the land by altering its soil chemistry and hydrology.

Detailed explanation-4: -The classification system used in the preparation of continental desertification maps is based on four classes of desertification: slight, moderate, severe, and very severe.

Detailed explanation-5: -Desertification is the degradation process by which a fertile land changes itself into a desert by losing its flora and fauna, this can be caused by drought, deforestation, climate change, human activities or improper agriculture. Desertification is a process of degradation of the land.