COMPARITIVE ANALYSIS OF ORGANIC MATTER AND MICROBIAL POPULATION FROM SURFACE AND DREDGED SOIL OF CHELIKERE LAKE, BANGALORE
Microorganisms are involved in a variety of biogeochemical processes in natural environments. Dissolved organic matter is primarily composed of soluble portions of fresh plant and animal residues. Particulate organic matter is partially resistant to microbial decomposition and serves as an important long term supply of nutrients. Chelikery Reservoir is an important reservoir of water and a typical eutrophic freshwater lake. From the lake soil samples were collected from surface and dredged soil
... ce and dredged soil of Chelikery lake, Bangalore, and then the Walkley Black Method used for determining soil organic matter using volume of acidic dichromate solution reacting with determined amount of soil in order to oxidize the organic matter. And microbial diversity by standard microbial plate counting method. Results showed that the dredged soil had a more organic matter and microbial population than surface soil. The distribution pattern of Organic matter and microbial population is changing irregularly along with rivers and their environmental changesand alsovary upon their complex interactions between soil properties, microbial population and SOM chemistry. KEYWORDS: Organic Matter, Microbial Population, Dredged Soil Surface Isolation, Biochemical Processes.