Details zur Publikation |
| Kategorie | Datenpublikation |
| DOI | 10.6084/m9.figshare.28099136.v1 |
| Lizenz |
|
| Titel (primär) | Multiple mechanisms associated with loss of seed bank diversity under nitrogen enrichment |
| Autor | Ma, M.; Eskelinen, A.; Zhao, Y.; Baskin, C.C.; Xin, C.; Zhang, P.; Guo, Z.; Zhang, H.; Wang, X.; Zhang, P.; Du, G. |
| Quelle | figshare |
| Erscheinungsjahr | 2024 |
| Department | PHYDIV |
| Sprache | englisch |
| Topic | T5 Future Landscapes |
| Abstract | The soil seed bank is a hidden community below-ground and a crucial component of plant biodiversity. Nitrogen (N) enrichment can reduce plant species diversity both in above-ground plant communities and seed banks. However, the mechanisms by which N enrichment affects soil seed banks are not clear. We investigated the direct and indirect mechanisms of N enrichment in soil seed banks in an N addition experiment in an alpine meadow on the eastern Tibetan Plateau. We combined above-ground plant community and litter data, fungal diversity, seed bank surveys and seed rain monitoring, and conducted a seed burial experiment to explore seed viability. We found that the rate of loss of species diversity was slower in seed banks than in above-ground plant communities. N enrichment directly affected seed banks by decreasing seed viability and enhancing seed germination. Furthermore, small seeds were more prone to loss of viability and increased seed germination under N enrichment than large seeds. At the same time, N enrichment also indirectly decreased seed bank species richness and number of seeds by altering the composition of the plant community and by increasing the amount of litter and fungal diversity. N enrichment also indirectly decreased number of seeds in seed banks through decreasing number of seeds of seed rain, with increasing negative effects due to higher levels of N enrichment. Synthesis. Our results provide novel insights into multiple direct and indirect mechanisms that can lead to loss of plant diversity in seed banks under N enrichment, with important ramifications on the maintenance of plant biodiversity, ecosystem resilience and restoration in N-enriched systems. |
| Verknüpfte UFZ-Textpublikationen | |
| dauerhafte UFZ-Verlinkung | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=30461 |
| Ma, M., Eskelinen, A., Zhao, Y., Baskin, C.C., Xin, C., Zhang, P., Guo, Z., Zhang, H., Wang, X., Zhang, P., Du, G. (2024): Multiple mechanisms associated with loss of seed bank diversity under nitrogen enrichment figshare 10.6084/m9.figshare.28099136.v1 |
|