Comming from another scientific field I am asking whether there is literature about how deep the symbiotic relationship between roots of Fagus sylvatica and Picea abies with ectomycorrhiza and arbuscular mycorrhiza can reach on the meter scale
Here a good article on the important contribution of ectomycorrhiza and arbuscular mycorrhiza on forest ecosystems.
Their morphology influence the spatial distribution of Carbone in forests. In addition, the longevity fluctuations of these stemming hyphae might induce major consequences for C sequestration in soil.