Correlations between projection area of ectomycorrhizae and H2O extractable nutrients in organic soil layers

Autor: Axel Göttlein, Reinhard Agerer
Rok vydání: 2003
Předmět:
Zdroj: Mycological Progress. 2:45-51
ISSN: 1861-8952
1617-416X
DOI: 10.1007/s11557-006-0043-6
Popis: Most of the fine root tips of boreal and temperate forests are colonized by ectomycorrhizal fungi. Thus ectomycorrhizal (ECM) symbiosis is an important factor in supplying trees with water and a wide range of nutrients. ECM are frequently patchily distributed and often form dense systems in small areas. One of the reasons for this uneven distribution might be a heterogeneous and patchy distribution of nutrients. The present study compares the occurrence of ECM of Cortinarius obtusus, Lactarius decipiens, L. theiogalus, and Russula ochroleuca and soil nutrient concentrations at a micro-scale (1 cm2) in the OF layer of a pure Norway spruce stand. In addition to the macronutrients K+, Mg2+, Ca2+, NO3 −, NH4 +, the concentrations of Na+, Fe3++Mn2+, Al3+, Cl−, SO4 2− are studied, as well as pH. Whereas Russula ochroleuca and Lactarius decipiens did not reveal any significant correlation with any of the tested nutrients or pH, the occurrence of L. theiogalus was significantly (p < 5 %) positively correlated with NH4 +, K+, Na+, Mg2+, Fe3++Mn2+, and pH. Cortinarius obtusus was positively correlated at the same significance level only with NH4 + and Mg2+.
Databáze: OpenAIRE
Externí odkaz: