Which pH range corresponds to alkaline soil?

The pH range that corresponds to alkaline soil is one that generally exceeds 7 on the pH scale, indicating a greater concentration of hydroxide ions compared to hydrogen ions. Alkaline soils, which are common in many regions, especially areas with high evaporation or low precipitation, often fall within the pH range of 7 to 14.

The choice indicating pH values from 8 to 14 accurately reflects a moderately to highly alkaline condition. A pH of 8 signifies a slight alkalinity, while pH values approaching 14 represent a very high level of alkalinity. In such soils, the availability of certain nutrients can diminish, influencing plant growth since many plants prefer a more neutral to slightly acidic environment for optimal nutrient uptake.

Thus, recognizing a pH range of 8 to 14 is essential for understanding soil chemistry and its implications for horticultural practices, particularly in planning and managing landscapes.