Dear RK Naresh

i hope the mentioned aticle is useful for you and answers your question

https://doi.org/10.2307/3546587

I agree with Negin Naghibi that the diversity of microorganisms is critical to the functioning of the ecosystem, because there is the need to maintain ecological processes such as decomposition of organic matter, nutrient cycling, soil aggregation and controlling pathogens within the ecosystem. Microbial diversity in the soil is always crucial for any ecosystem as they play vital role in improving soil health, plant growth and yield, and maintaining the sustainability of that ecosystem, as well as reducing the use of chemical fertilizers. The diversity and biomass of soil microbial communities are the major regulators of fundamental ecosystem processes, such as organic matter decomposition, nutrient cycling, and gaseous fluxes. Soil contains all major groups of microorganisms-bacteria, fungi, algae, protozoa, and virus, but bacteria are the most numerous usually the topsoil contains the greatest number of microorganisms due to the sufficient supply of oxygen and nutrients. Microbial bioremediation strategies are based on the consortia of diverse organisms that are indigenous to the polluted sites and possess immense metabolic potential. Isolating and purifying such indigenous microorganisms gives some knowledge of the microbial metabolites and the degradation processes. The diversity and biomass of soil microbial communities are the major regulators of fundamental ecosystem processes, such as organic matter decomposition, nutrient cycling, and gaseous fluxes. Increasing species diversity can influence ecosystem functions — such as productivity — by increasing the likelihood that species will use complementary resources and can also increase the likelihood that a particularly productive or efficient species is present in the community.Thus, by having a greater diversity of microbes there is a greater opportunity for different microbes to perform specific functions associated with the different stages of litter decomposition; nutrient and carbon cycling that together maintain the broad ecosystem functions of plant productivity and diversity. Ecosystem Diversity can be the variety of different habitats, communities and ecological processes. A biological community is defined by the species that occupy a particular area and the interactions between those species. Microbes live in every kind of habitat (terrestrial, aquatic, atmospheric, or living host) and their presence invariably affects the environment in which they grow. Their diversity enables them to thrive in extremely cold or extremely hot environments.