Skip to main content
Log in

Both specific plant functional type loss and vegetation change influence litter metallic element release in an alpine treeline ecotone

  • Research Article
  • Published:
Environmental Science and Pollution Research Aims and scope Submit manuscript

Abstract

Climate warming changes the plant community composition and biodiversity. Dominate species or plant functional types (PFTs) loss may influence alpine ecosystem processes, but much uncertainty remains. This study tested whether loss of specific PFTs and vegetation variation would impact the metallic element release of mixed litter in an alpine treeline ecotone. Six representative PFTs in the alpine ecosystem on the eastern Tibetan Plateau were selected. Litterbags were used to determine the release of potassium, calcium, magnesium, sodium, manganese, zinc, copper, iron, and aluminum from litter loss of specific PFTs after 669 days of decomposition in coniferous forest (CF) and alpine shrubland (AS). The results showed that potassium, sodium, magnesium, and copper were net released, while aluminum, iron, and manganese were accumulated after 669 days. Functional type mixtures promoted the release of potassium, sodium, aluminum, and zinc (synergistic effect), while inhibiting the release of calcium, magnesium, and iron (antagonistic effect). Further, loss of specific plant functional type significantly affected the aluminum and iron release rates and the relatively mixed effects of the potassium, aluminum, and iron release rates. The synergistic effects on potassium, sodium, and aluminum in AS were greater than those in CF, while the antagonistic effect of manganese release in AS was lower than that in CF. Therefore, increased altitude may further promote the synergistic effect of potassium, sodium, and aluminum release and alleviate the antagonistic effect of manganese in mixed litter. Finally, the initial stoichiometric ratios regulate the mixed effects of elemental release rates, with the nitrogen-related stoichiometric ratios playing the most important role. The regulation of elements release by stoichiometric ratios requires more in-depth and systematic studies, which will help us to understand the influence mechanism of decomposition more comprehensively.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2

Similar content being viewed by others

Data availability

The data is available on request to the corresponding author.

References

Download references

Acknowledgements

We would like to thank Xian Shen, Yamei Chen, Lifeng Wang, and others at the Institute of Ecology and Forestry, Sichuan Agricultural University, for assistance with field sampling and laboratory analyses. We also want to thank Jian Zhang and Yang Liu for reviewing the paper.

Funding

This work was financially supported by projects from the Science and Technology Development Project of the central government guided in Sichuan (2020ZYD049); National Natural Science Foundation of China (31570605); and the project supported by the Foundation of Key Laboratory of Southwest China Wildlife Resources Conservation, China West Normal University, Ministry of Education, Nanchong, 637009, P. R. China (XNYB21-02).

Author information

Authors and Affiliations

Authors

Contributions

Yang Liu, Yamei Chen, Lifeng Wang, Yu Zhou, and Xian Shen designed the study. Data collection were performed by Xian Shen. The analysis was performed and the first draft of the manuscript was written by Yu Zhou. Jian Zhang, Zhenfeng Xu, Li Guo, Bo Tan, Lixia Wang, Chengming You, and Yang Liu read and approved the final manuscript.

Corresponding author

Correspondence to Yang Liu.

Ethics declarations

Ethics approval

Not applicable.

Consent to participate

Not applicable.

Consent for publication

Not applicable.

Conflict of interest

The authors declare no competing interests.

Additional information

Responsible Editor: Philippe Garrigues

Publisher's note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Zhou, Y., Shen, X., Chen, Y. et al. Both specific plant functional type loss and vegetation change influence litter metallic element release in an alpine treeline ecotone. Environ Sci Pollut Res 29, 41544–41556 (2022). https://doi.org/10.1007/s11356-022-18778-y

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11356-022-18778-y

Keywords

Navigation