How does decomposition of plants affects soil?

Decomposition of plants enriches the soil by breaking down organic matter, releasing essential nutrients like nitrogen, phosphorus, and potassium, which are vital for plant growth. This process enhances soil structure, improves aeration and water retention, and promotes microbial activity. Additionally, decomposed plant material, known as humus, contributes to soil fertility and supports a diverse ecosystem of organisms that further aid in nutrient cycling. Overall, plant decomposition plays a crucial role in maintaining healthy and productive soils.