Аннотация:A scientific study was conducted on the influence of landscape conditions and the composition of microorganisms on the decomposition of organic matter in the ecosystem of sorrel spruce. As part of the study, according to the Tea Back Index (TBI) methodology, 10 bags of green tea (Lipton Green Gunpowder) were put into the soil in four locations with different landscape conditions for a period of three months as organic material. After this period, the mass of dry organic matter was measured and the composition of soil microorganisms was determined at the sites where the samples were laid. As a result of measurements, it was found that the most active decomposition was observed in the undisturbed ecosystem of the spruce forest 46%.