Der Einfluss von Bodenbiodiversität auf Ökosystemstabilität in experimentellen Grasländern
Zusammenfassung der Projektergebnisse
Soil biodiversity loss reduced temporal stability by suppressing asynchronous responses of plant functional groups. Greater plant diversity, especially in terms of functional diversity, promoted temporal stability, but this effect was independent of soil biodiversity loss. Moreover, multitrophic biodiversity, plant and soil biodiversity combined, was positively associated with temporal stability. Our study highlights the importance of maintaining both plant and soil biodiversity for sustainable biomass production. Grass and herb biomass was decreased by drought and promoted by nitrogen deposition, and a fast recovery was observed following disturbances, independently of soil biodiversity loss. Warming promoted herb biomass during and following disturbance only when soil biodiversity was not reduced. However, legumes biomass was suppressed by these disturbances, and there were more detrimental effects with reduced soil biodiversity. Moreover, soil biodiversity loss suppressed the recovery of legumes following these disturbances. Similar patterns were found for the response of plant diversity. The changes in legumes might be partly attributed to the loss of mycorrhizal soil mutualists. Our study shows that soil biodiversity is crucial for legume persistence and plant diversity maintenance when faced with environmental change, highlighting the importance of soil biodiversity as a potential buffering mechanism for plant diversity and community composition in grasslands. In summary, our results contribute to a deeper understanding of the mechanisms that underpin the effects of soil biodiversity under global change, highlighting the key role of soil biodiversity in maintaining plant diversity and ecosystem stability. Surprisingly, soil biodiversity loss did not alter the resistance and resilience of plant community productivity to and following global change disturbances, because the compensatory dynamics between plant functional groups. However, our study shows that soil biodiversity is crucial for legume persistence and plant diversity maintenance when faced with environmental change, highlighting the importance of soil biodiversity as a potential buffering mechanism for plant diversity and community composition in grasslands.
Projektbezogene Publikationen (Auswahl)
-
Soil biodiversity enhances the persistence of legumes under climate change. New Phytologist, 229(5), 2945-2956.
Yang, Gaowen; Roy, Julien; Veresoglou, Stavros D. & Rillig, Matthias C.
-
Plant and soil biodiversity have non‐substitutable stabilising effects on biomass production. Ecology Letters, 24(8), 1582-1593.
Yang, Gaowen; Ryo, Masahiro; Roy, Julien; Hempel, Stefan & Rillig, Matthias C.
