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Title of Journal: Plant Soil

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Abbravation: Plant and Soil

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Springer Netherlands

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The effects of long-term fertilization on the temporal stability of alpine meadow communities

Authors: Zhongling Yang, Jasper van Ruijven, Guozhen Du,

Publish Date: 2011/04/15
Volume: 345, Issue:1-2, Pages: 315-324
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Recent theoretical and experimental work suggests that species diversity enhances the temporal stability of communities. However, empirical support largely comes from experimental communities. The relationship between diversity and stability in natural communities, and the ones facing environmental changes in particular, has received less attention. We created a gradient of fertility in a natural alpine meadow community to test the effects of diversity and fertilization on the temporal variability of community cover and cover of component species and to determine the importance of asynchrony, portfolio effects, cover and dominance for diversity-stability relationships. Although fertilization strongly reduced species richness, the temporal stability in community cover increased with fertilization. Most species showed a decline of temporal stability in mean population cover with fertilization, but two grass species, which dominated fertilized communities after 10 years, showed an increase of stability. Detailed analysis revealed that the increased dominance of these two highly stable grass species was associated with increased community stability at high levels of fertilization. In contrast, we found little support for other mechanisms that have been proposed to contribute to community stability, such as changes in asynchrony and portfolio effects. We conclude that the presence of highly productive species that have stabilizing properties dominate fertilized assemblages and enhance ecosystem stability.We thank Dr Hui Guo, Shujun Wen, Xin Chen, Peng Jia, Wei Li, Xiaoiming Shi and Chunhui Zhang for helpful discussions and comments on the manuscript; Yuanzhen Zhu, Liujie Wang, Xiao Yang, Wenxiang Hu, Junyong Li and many others of the Maqu Rangeland Workgroup for assistance in both the field and lab. This project was supported by Key Program of National Natural Science Foundation of China(Grant No:40930533).



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Other Papers In This Journal:

  1. The effects of long-term fertilization on the temporal stability of alpine meadow communities
  2. Glyphosate reduces shoot concentrations of mineral nutrients in glyphosate-resistant soybeans
  3. Effects of grazing management system on plant community structure and functioning in a semiarid steppe: scaling from species to community
  4. DGT-measured fluxes explain the chloride-enhanced cadmium uptake by plants at low but not at high Cd supply
  5. Plant and soil responses of an alpine steppe on the Tibetan Plateau to multi-level nitrogen addition
  6. Higher plant diversity enhances soil stability in disturbed alpine ecosystems
  7. Inter-comparison of methods for quantifying above-ground leaf litter decomposition rates
  8. Contrasts in growth and nitrogen nutrition of species in the Cupressaceae and Pinaceae in response to calcium
  9. Concentration of cadmium in durum wheat as affected by time
  10. Grazing by bison is a stronger driver of plant ecohydrology in tallgrass prairie than fire history
  11. Semi-automatic control of soil water in pot culture
  12. The legacy of climate change effects: previous drought increases short-term litter decomposition rates in a temperate mixed grass- and shrubland
  13. Straw management
  14. Increasing fluctuations of soil salinity affect seedling growth performances and physiology in three Neotropical mangrove species
  15. Nickel bioavailability in an ultramafic toposequence in the Vosges Mountains (France)
  16. Decomposition-rate estimation of leaf litter in karst forests in China based on a mathematical model
  17. Land use change decreases soil carbon stocks in Tibetan grasslands
  18. Effect of silicate on phosphate availability for rice in a P-deficient soil
  19. Charcoal and shrubs modify soil processes in ponderosa pine forests of western Montana
  20. Factors regulating litter mass loss and lignin degradation in late decomposition stages
  21. Illite transformation and potassium release upon changes in composition of the rhizophere soil solution
  22. Maize seedling phosphorus nutrition: Allocation of remobilized seed phosphorus reserves and external phosphorus uptake to seedling roots and shoots during early growth stages
  23. Indirect effects of polycyclic aromatic hydrocarbon contamination on microbial communities in legume and grass rhizospheres

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