PLS 2 Day #3- Soil Taxonomy

Which type of soil is commonly found on floodplains and lacks B horizon development?

• Vertisols

• Entisols

• Aridisols

• Mollisols

Which type of soil is known for its self-churning properties and is found in limited areas of the Coastal Plain?

• Vertisols

• Inceptisols

• Alfisols

• Histosols

Which type of soil has minimal horizon development and is often found on higher bottomlands no longer subject to much flooding?

• Mollisols

• Inceptisols

• Ultisols

• Oxisols

Which type of soil is typically found in arid lands or deserts and does not occur in the Southeast?

• Aridisols

• Spodosols

• Alfisols

• Ultisols

Which type of soil is characterized by a thick, dark A horizon and is usually high in plant nutrients?

• Mollisols

• Vertisols

• Entisols

• Spodosols

Which type of soil is highly leached, acidic, and has an accumulation of organic matter, Fe, or Al in the subsoil?

• Spodosols

• Alfisols

• Ultisols

• Oxisols

Which type of soil has a B horizon in which clay has accumulated and is generally very productive without large additions of lime and fertilizer?

• Alfisols

• Ultisols

• Histosols

• Vertisols

Which type of soil is acidic, deeply leached, and requires large additions of lime and fertilizer to be productive for agricultural crops?

• Ultisols

• Alfisols

• Oxisols

• Mollisols

Which type of soil is dominated by the accumulation of Fe and Al oxides and loss of Si in the B horizon, and is characterized by its dark red color?

• Oxisols

• Spodosols

• Entisols

• Vertisols

Which type of soil is composed largely of organic matter that is partially to completely decomposed and is commonly found in swamps and tidal marshes?

• Histosols

• Alfisols

• Mollisols

• Aridisols