ENVIRONMENTAL FACTORS AND THEIR IMPACT ON SOIL CHARACTERS
Soil is a dynamic environment. Living organisms constantly degrade the materials present in soil to provide themselves with nutrients for growth. Soil is the mixture of minerals, organic matter, gases, liquids and a myriad of organisms that can support plant life. It is a natural body that exists as part of the pedosphere and it performs four important functions. It is a medium for plant growth. It is a means of water storage, supply and purification. Soil is a modifier of the atmosphere and it is a habitat for organisms that take part in decomposition and creation of a habitat for other organisms. Some of the factors that affect soil microorganisms are nutrient supply, aeration, moisture content, pH, fertilizer, cultivation, seasonal climatic changes etc. Soil contains various groups of microorganisms like bacteria, actinomycetes, fungi, algae and protozoa. Bacteria, the smallest microbes found to be dominant in soil. The population of bacteria in soil depends on the physical, chemical and biological conditions of soil. Having known these facts, this study is aimed to find out the role of environmental factors on soil characters. Five different sites were selected for collection of the soil samples. Collected soil samples were subjected to physical, chemical & biological analysis and physicochemical properties by standard methods. The results revealed that the nature of the soil in terms of physical, chemical and biological character vary based on the environment from where it w as collected indicating that the environment has its impact on soil quality.