Linkages between Phosphorus and Plant Diversity in Central European Forest Ecosystems—Complementarity or Competition?

摘要: The phosphorus nutrition status of European forests has decreased significantly in recent decades. For a deeper understanding complementarity and competition terms P acquisition temperate forests, we have analyzed α-diversity, organic layer mineral soil P, status, different concepts use efficiency (PUE) Fagus sylvatica L. (European beech) Picea abies (L.) H. Karst. (Norway spruce). Using subset the Second National Soil Survey Germany, correlated available data on with α-diversity indices for beech spruce overall individual vegetation layers (tree, shrub, herb, moss layers). Moreover, investigated feedbacks PUE both tree species. diversity forest ecosystems was largely positively related to content soil, but there were differences among layers. Diversity negatively P. By contrast, shrub showed no correlation while herb soil. A higher slightly increased recycling (PPlant/Porganic layer) uptake (PPlant/Psoil) Norway spruce. In species richness led improved status. Our results confirm significant, non-universal relationships between variations ecosystems, layers, or particular, may enhance hence also dominant trees through PUE, whereas seemed show competitive each other nutrient cycling.