What role does organic matter play in soil health?

Organic matter plays a crucial role in soil health primarily by providing nutrients for plant growth. As organic material decomposes, it releases essential nutrients such as nitrogen, phosphorus, and potassium into the soil, which are vital for plant development. Additionally, organic matter enhances the availability of micronutrients and improves the soil's overall nutrient-holding capacity. This nutrient-rich environment supports robust plant growth and contributes to the overall productivity of the ecosystem.

Furthermore, organic matter improves soil structure, aiding in aeration and water retention, which are also beneficial for plants. It encourages beneficial microorganisms in the soil ecosystem, promoting a balanced soil environment that is conducive to healthy plant roots. While organic matter may influence soil pH to some extent, its primary function is not to decrease pH. Instead, it's integral to fostering a healthy soil environment which directly supports plant nutrients. The other concepts related to soil density and pollutants do not reflect the positive and vital contributions organic matter makes to soil health.