How did population growth and overuse of land expand the Gobi Desert after the 1950s?

Since the 1950s, the Gobi has experienced significant expansion, primarily driven by a substantial increase in the human population—particularly in Inner Mongolia—and the subsequent overuse of marginal lands.1

This expansion occurs as the desert encroaches upon and replaces semiarid grasslands on the desert's fringes. The primary mechanisms behind this process include:1

• Reduced Vegetation Cover: Intensive land use, including agriculture and livestock grazing, has depleted the natural plant cover that once stabilized these areas.1
• Soil Erosion: The loss of vegetation exposes the ground, leading to increased soil erosion. Overgrazing by livestock further exacerbates this by compacting the soil and destroying the root systems that bind it together, making the land more susceptible to being washed away by rain.12
• Desertification: These unsustainable land-management practices are classic drivers of desertification, a process where productive ecosystems lose their biological productivity and transform into desert-like conditions.3

This cycle of degradation has fundamentally altered the landscape, shifting the ecological balance of the region toward a more arid state.1