Land degradation reduces the production of biomass and vegetation cover for all forms of land use.
The lack of specific data related to degradation is a severe limitation for its monitoring. Assessment of the current state of land degradation or desertification is very difficult because this phenomenon includes several complex processes. For that reason, no common agreement has been achieved among the scientific community for its assessment.

Today one of the ecological crisis is the phenomenon of desertification that affecting the world.
Desertification is more related to social and anthropogenic issues than natural causes and it becomes more
important over the time.

Desertification is one of the fundamental hazards threatening the arid and semi-arid regions on ecological as well as economic perspective. Mapping and quantifying the land degradation have become urgent tasks in order to avoid the depletion or deterioration of the resources we need to know the causes for the depletion.