Qualitative composition of the humus in fluoride-contaminated arable gray forest soils of Cisbaikalia

摘要

The qualitative composition of the humus in arable gray forest soils technogenically contaminated with fluorides was studied in field experiments using the N-15 isotope tracer technique. It was found that the adversenegative effect of high contamination levels is manifested in increasing humus mobility, which is related to the redistribution of humus substances from low-mobile forms and to the formation of new labile substances.