OBJECTIVE FORESTRY

Detailed explanation-1: -The topsoil is usually darker than lower layers (or horizons) because this is where organic matter accumulates. Soil colour is usually due to 3 main pigments: black-from organic matter. red-from iron and aluminium oxides.

Detailed explanation-2: -Topsoil (A Horizon) This is where most of the organic matter that are beneficial to your plants resides and is exactly what we mean when referring to topsoil. Topsoil is dark brown / black in colour and porous so it can hold lots of moisture and air, ideal for germinate your seeds.

Detailed explanation-3: -Black dirt is not the same as topsoil, even though it may look the same. Black dirt typically contains iron and other chemicals, which is what gives it that dark brown or black hue. This material is commonly used in landscaping, gardens, and lawns as well as for filling in low areas or creating walkways.