OBJECTIVE FORESTRY

Detailed explanation-1: -Soil may be defined as “A dynamic natural body on the surface of the earth in which plants grow, compound of mineral and or-ganic materials and living forms”. “Soil is an upper most weathered layer of the soil earth crusts.

Detailed explanation-2: -Humus is dark, organic material that forms in soil when plant and animal matter decays.

Detailed explanation-3: -Soil has also been defined as a natural body consisting of layers (soil horizons) that are composed of weathered mineral materials, organic material, air and water.

Detailed explanation-4: -Soils are dynamic, complex systems of inorganic, organic and biotic components that have the capacity to support plant life. Soils are classified on the basis of their chemical and physical properties. Decomposition of organic matter is the principal process in soils that recycles plant nutrients and produces humus.