Soil shrinkage occurs when soil loses moisture, causing it to contract and reduce in volume. This process is common in clay-rich soils, which can absorb and release water more significantly than sandy soils. As the water evaporates or drains away, the soil particles draw closer together, leading to cracks and fissures on the surface. The extent of soil shrinkage can be influenced by factors such as temperature, humidity, and the type of vegetation present. In agricultural settings, farmers must monitor soil moisture levels to prevent excessive shrinkage, which can negatively impact crop growth and soil structure.