Tropical soils typically have a shallow horizon profile due to high rates of weathering and leaching in the warm, humid climate. They often have distinct layers that are characterized by low fertility and organic matter content, as nutrients are quickly recycled and replenished through rapid decomposition.
The bottom zone in soils with distinct soil horizons is known as the C horizon. This layer is located below the B horizon and consists of partially weathered rocks and minerals. The C horizon is typically the least weathered and closest to the parent material.
The topmost zone in soils with distinct horizons is called the O horizon, also known as the organic horizon. It is composed mainly of organic materials such as decomposing leaves and plant matter.
The correct order of soil horizons, from top to bottom, is O horizon, A horizon, E horizon, B horizon, C horizon, and R horizon. It is important to note that not all soils have all these horizons, as they can vary depending on the specific conditions of the soil.
The bottom zones in soils with distinct soil horizons are called the C horizon. This horizon typically contains weathered parent material and has limited biological activity compared to the upper horizons.
In soils with distinct soil horizons, the bottom zone is the bedrock denoted as R.
No, they do not. They are "old soils" and contain very few nutrients.
Tropical rainforest
The bottom zone in soils with distinct soil horizons is known as the C horizon. This layer is located below the B horizon and consists of partially weathered rocks and minerals. The C horizon is typically the least weathered and closest to the parent material.
The topmost zone in soils with distinct horizons is called the O horizon, also known as the organic horizon. It is composed mainly of organic materials such as decomposing leaves and plant matter.
The correct order of soil horizons, from top to bottom, is O horizon, A horizon, E horizon, B horizon, C horizon, and R horizon. It is important to note that not all soils have all these horizons, as they can vary depending on the specific conditions of the soil.
C - generally infertile tropical soils
Laterite soils are most commonly found in tropical and subtropical regions with high temperatures and heavy rainfall. These environments are conducive to the intense weathering processes that lead to the formation of laterite soils.
The bottom zones in soils with distinct soil horizons are called the C horizon. This horizon typically contains weathered parent material and has limited biological activity compared to the upper horizons.
Areas with heavily leached soils, usually in tropical or previously tropical areas.
A. Kamphorst has written: 'Annotated bibliography on tropical and sub-tropical alluvial and organic soils'
generally infertile tropical soils
In soils with distinct soil horizons, the bottom zone is the bedrock denoted as R.