Alkaline soil is characterized by a higher pH level, typically above 7.0, which indicates a lower concentration of hydrogen ions. This type of soil often contains higher amounts of calcium carbonate and other alkaline minerals, making it less acidic. Alkaline soils can affect plant growth, as certain nutrients may become less available to plants in these conditions. Commonly found in arid and semi-arid regions, alkaline soil can influence the types of vegetation that thrive in these areas. Plants such as sagebrush and saltbush are often adapted to these conditions. Understanding soil pH is essential for effective agriculture and gardening.