The researchers studied different types of soil in Gyeongnam Province to see how they affect the microbial communities living in them. They used a method called FAME analysis to look at the fatty acids in the soil. They found that soil with more silt had higher amounts of fungi compared to sandy soil. Sandy soil had lower levels of certain fatty acids, suggesting less stress on the microbes. Also, the type of bacteria called actinomycetes was more abundant in loam soil than in sandy soil.