Soil microbial biomass is the living and active part of soil organic matter, which is re-established after disturbance of the land. Study of recovery time of microbial biomass is important for the development of self-sustaining ecosystem in mine degraded land. Increase in soil microbial biomass and organic carbon contents increases the functional diversity and stability of ecosystem.

This paper deals with utilization of flyash to vegetation programmed in abandoned open cast mines of Jharia coalfields, Dhanbad, Jharkhand. Its physical properties are beneficial in vegetation purposes in abandoned opencast mines of Jharia coalfields.