Skip to main content

Advertisement

Log in

Effects of dissolved organic matter on soil aggregate dynamics using rare earth oxides as tracers in A Japanese Andisol

  • Research Article
  • Published:
Plant and Soil Aims and scope Submit manuscript

Abstract

Background and aims

Dissolved organic matter (DOM) stands out as a highly active component within the organic matter pool. It is hypothesized to play a crucial role by adsorbing onto minerals and serving as a precursor for soil aggregates. However, the impact of DOM substrate types and addition levels on the intricate dynamics of soil aggregates remains elusive.

Methods

A 28-day short-term incubation experiment was conducted to investigate the responses of a Japanese Andisol to different DOM substrates, exploring the influence of three DOM substrates and two concentration levels. REOs concentrations in three aggregate fractions were measured on 0, 7, 14, and 28 days of incubation to calculate the aggregates transformation paths and relative aggregate change.

Results

DOM addition significantly increased aggregate stability in Andisols soil, evident in the elevated mean weight diameter (MWD) compared to the control (CK) treatment. The change of aggregate stability during incubation is determined by both DOM types and addition levels. The N-Acetyl-D( +)-Glucosamine (NADG) treatment, peaking at 14 days, whereas the vanillin (VAN) treatment reaching the highest MWD value before incubation (0 days). The increase in aggregate stability was reflected in the transformation paths of aggregates. NADG treatment, VAN treatment, and the NADG&VAN (MIX) mixture all contributed to reduced macroaggregate breakdown and inhibited the microaggregates breakdown. Furthermore, the relative changes in aggregate turnover exhibited varying trends across treatments. Regarding macroaggregate dynamics, the addition of vanillin, especially in the 100%VAN and 100%MIX treatments, significantly enhanced macroaggregate formation, with an increase of over 30% in the 100%MIX treatment after 28 days. Microaggregate dynamics varied among treatments. In the 100%NADG and 100%VAN treatments, there was an initial increase from 0 to 7 days, succeeded by a decrease from 7 to 28 days. The 50%VAN and 50%MIX treatments exhibited an increasing trend from 0 to 14 days, followed by a decrease from 14 to 28 days.

Conclusion

Overall, these findings highlight the important role of DOM in aggregate dynamics and suggest that the types and addition levels of DOM can significantly impact soil aggregate turnover pathways.

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
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12

Similar content being viewed by others

Data availability

The datasets generated during the current study are available from the corresponding author on reasonable request.

References

Download references

Acknowledgements

We thank Prof.Wagai Rota for the management and maintenance of long-term field experiments, and our lab colleagues for the assistance of soil sampling and analyses. We would like to thank the China Scholarship Council for support this work through the award of a fellowship to Dr. Wang YK (grant no.202008610192).

Funding

This work was supported by Japan Society for the Promotion of Science, Program for Grant-in-Aid for Scientific Research (B) 21H02086 and Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences (grant no. E3V30020YZ).

Author information

Authors and Affiliations

Authors

Contributions

Y.K-W. & A-M. – Conceptualization, Investigation, Formal Analysis, Writing, Funding acquisition, Original Draft, Visualization; Q-J. – Investigation; Y.Y-H – Review & Editing, Supervision, Funding Acquisition, Project Administration; T-G. & W.F.-G– methodology; K-T. – Supervision, Review & Editing.

All authors read and approved the final manuscript.

Corresponding authors

Correspondence to Yike Wang or Yuanyuan Huang.

Ethics declarations

Competing interests

The authors have no relevant financial or non-financial interests to disclose.

Conflict of interest

The authors declare that the research was conducted in the absence of any commercial or financial relationship that could be construed as a potential conflict of interest.

Additional information

Responsible Editor: Andrew J. Margenot.

Publisher's Note

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

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Wang, Y., Asano, M., Huang, Y. et al. Effects of dissolved organic matter on soil aggregate dynamics using rare earth oxides as tracers in A Japanese Andisol. Plant Soil (2024). https://doi.org/10.1007/s11104-024-06695-7

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s11104-024-06695-7

Keywords

Navigation