**7. Conclusion**

Because rainfed environments are used for a variety of human purposes (such as agriculture, livestock grazing, and timber collection), the various activities

#### *Deserts and Desertification*

performed in them can exacerbate desertification problems and bring about lasting changes in rainfed ecosystems. Desertification is a phenomenon that occurs as a result of natural or human factors. In recent decades, Desertification has intensified with the loss of fertile lands, destruction of pastures and agricultural lands, salinization and erosion of lands, and quantitative and qualitative reduction of surface and groundwater. This phenomenon poses a serious threat to most of the world's ecosystems, mainly arid and semi-arid regions.

In recent years, due to the overexploitation of natural resources, this process has become more intense and severe, and comprehensive management is needed to deal with it. Implementing and implementing projects appropriate to this challenge and benefiting from successful practical programs in the world can effectively reduce the desertification process, especially in arid and semi-arid regions. In general, correct knowledge and assessment of the state of the world's deserts will help manage these areas.
