Mycocoenology of stands of Fagus sylvatica L. in the northeastern Netherlands
Arnolds, Eef; Opdam, Age; van Steenis, Wouter; de Vries, Bernhard
Nineteen plots of ± 1000 m2 in planted stands of Fagus sylvatica in the northeastern Netherlands were studied with mycocoenological methods during three successive years. Independent classifications were made of the phytocoenoses and the mycocoenoses in these plots. The soil profile and some soil-chemical characteristics were determined. All plots belong to the Quercio robori-petraeae and can be divided into two groups corresponding with the Betulo-Quercetum and Fago-Quercetum, respectively. The stands occur on acidic, originally oligotrophic, sandy soils without profile development or with a mor podzol. It appeared that the mycocoenoses were many times richer in species than the phytocoenoses and more appropriate to use for a syntaxonomic classification. No correlation existed between species diversity of green plants and macromycetes in the plots. No correlation existed between species diversity of macromycetes and age of the trees, but the species composition changed during forest development, in particular concerning mycorrhizal fungi. Our results are compared with other studies on the succession of the mycoflora during forest development, the mycocoenoses of related vegetation types in the Netherlands and the mycocoenoses of other beech forest communities in Europe. It appears that the species composition is rather similar to that of oak dominated stands of the Quercion robori-petraeae except for some fungi, restricted to either Fagus or Quercus. However, the composition of mycocoenoses in beech forests of the Fagetalia is widely different.