Ecological Systems and Devices Annotation << Back Soil сonditions end enzyme aktiviti Neklyudov A.D. The review of published papers during 10…15 yeas was submitted for consideration. The review devote to interconnection condition of soil with the enzyme activity of soil systems. The interconnections of enzyme activity with contamination of soil some chemical contaminations including fertilizers and cultivation of soil and its irrigation and aeration were described. It was described also the interconnections of enzyme activity with earthworms. It was concluded that enzyme activity of soil is able be a marker of soil’s conditions.