Which soil property is related to its pH level?

The pH level of soil is strongly influenced by its organic content. Organic matter, such as decomposed plant and animal materials, can affect soil acidity and alkalinity through various chemical processes. When organic materials decompose, they can release organic acids into the soil, thereby lowering the pH and increasing acidity. Additionally, soils that are rich in organic matter often have higher cation exchange capacity, which allows them to hold and buffer nutrients more effectively.

The other soil properties mentioned are less directly related to pH. For example, texture refers to the size distribution of soil particles, which affects drainage and root penetration but not directly the acidity or alkalinity of the soil. Subsoil structure refers to the arrangement of soil particles and pores in the subsoil, which relates more to water movement and aeration than to pH. Moisture content indicates how much water is present in the soil but does not inherently change the pH level. Understanding the relationship between organic content and pH is essential for managing soil health and fertility.