How do deforestation and cultivation on mountain slopes contribute to soil erosion in Nepal?

In Nepal, deforestation and the expansion of cultivation onto mountain slopes are primary drivers of accelerated soil erosion.

The process occurs through several interconnected factors:

• Loss of Stabilization: Forests provide essential root systems that anchor the soil. When trees are removed to create new agricultural land, this natural stabilization is lost, leaving the ground highly susceptible to the forces of water and wind erosion.1
• Topographic Vulnerability: Nepal’s mid-mountain region is characterized by steep terrain. In areas where high population density has led to the clearing of forests for farming, the lack of vegetation cover allows rainfall and surface runoff to strip away topsoil more easily.21
• Agricultural Impact: Tilling and plowing on steep slopes disturb the soil structure, further increasing its vulnerability to being washed away. This degradation often results in reduced agricultural yields and significant land losses due to landslides.12

To address these environmental challenges, the Nepalese government and local communities have initiated various projects aimed at reforestation and the mitigation of soil loss.32