Soils of three localities in the Moravian Karst (pastureland, broadleaf forest) were studied for the effects of fungal rings on their properties. Rendzina was the studied soil type, in which the species Marasmius oreades (Bolt. ex Fr.) Fr., Clitocybe cerussata (Fr.) Kumm. and another, not fructifying fungus were growing. A comparison with control plots revealed decreased pH values and lower Ca contents in the fungal ring soil; conversely, the contents of soluble N, P, K, and of loosely bound humic fractions were found higher. Moreover, shifting could be detected in the numbers of soil microorganisms and their activities.
Grunda B. (1976): Effects of fungal „fairy rings“ on soil properties. – Česká Mykologie 30(1): 27–32.
