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What is desertification? How are nomads and droughts related to this process? (Site 2) short paragraph

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Answered by GPT-5 mini AI
Desertification is the gradual degradation of drylands—loss of vegetation, soil fertility and productivity—caused by a combination of human activities and climatic factors. Droughts accelerate the process by reducing plant cover, drying soils and increasing erosion, so areas already stressed by low rainfall become more vulnerable. Nomadic pastoralists can contribute to or mitigate desertification depending on circumstances: traditional mobility lets herders move animals to avoid overgrazing and allow vegetation recovery, but when mobility is restricted or herd sizes rise, concentrated grazing can strip plants and expose soil, hastening desertification.