The nutrient-rich topsoil layer, which is essential for plant growth, is lost due to soil erosion. The reduction in soil fertility caused by topsoil loss lowers crop output and increases reliance on synthetic fertilizers.
Reduced Water Infiltration and Water Holding Capacity: The capacity of eroded soils to absorb and hold water is reduced. Reduced soil moisture availability for plant uptake, increased surface runoff, and decreased water infiltration are the results of this. It may cause crops to run out of water and intensify the effects of drought.
Reduced Soil Organic Matter: The organic material in the topsoil is frequently removed by erosive processes, despite the fact that this material is crucial for soil structure, nitrogen cycling, and water-holding capacity. Low quantities of organic matter lead to unfavorable soil properties, decreased soil fertility and increased erosion susceptibility.
Decline in Soil Structure and Aggregation: Erosion ruins soil aggregates and disturbs soil structure. This has a negative effect on plant growth because it affects soil porosity, hinders root infiltration, and restricts air and water circulation.
