Biological properties of soils on mine tips

摘要

The biological properties of soils forming on coalmine spoils composed of loose non-toxic rocks were studied. In ten years of observation, fungal biomass in the studied soils increased by 6 times; the population density of the main groups of bacteria, by 3-7 times, and the respiration intensity, by 5-6 times. The biochemical activity of the soils increased significantly; in particular, the enzymatic activity (especially, the hydrolase activity) increased by 3-8 times, and the processes of cellulosedestruction and accumulation of ninhydrinpositive products intensified. The obtained results attest to colonization of the substrate by microorganisms and the development of microbial cenoses. This process is particularly active upon application of phytoameliorants.