Podzols are acidic soils which develop under coniferous forests and heathlands in cool, humid climates. They are characterized by a thin, organic-rich layer (the O horizon) overlying a light-colored leached layer (the E horizon). The B horizon is typically a reddish-brown or yellowish-brown clay-rich layer. Podzols are common in the uplands of Ireland, especially in the west and northwest.
Brown Earths
Brown Earths are moderately acidic soils that develop under deciduous forests and grasslands in temperate climates. They are characterized by a dark, organic-rich layer (the A horizon) overlying a brown or reddish-brown B horizon. Brown Earths are the most common soils in Ireland and are found in a wide range of environments, from lowlands to uplands.
Gleysols
Gleysols are poorly drained soils that develop in waterlogged conditions. They are characterized by a gray or bluish-gray color and often have a high organic matter content. Gleysols are common in low-lying areas, such as floodplains and river valleys.
Peat Soils
Peat soils are organic soils that develop in wetland conditions. They are characterized by a high organic matter content and a low mineral content. Peat soils are common in upland areas, especially in the west and northwest of Ireland.
Rendzinas
Rendzinas are shallow, calcareous soils that develop on limestone bedrock. They are characterized by a dark, organic-rich layer (the A horizon) overlying a white or light gray B horizon. Rendzinas are found in limestone areas, such as the Burren in County Clare.