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Long-term effects of cattle manure application on the soil aggregate stability of salt-affected soil on the Songnen Plain of North-Eastern China

  • Soils, Sec 3 • Remediation and Management of Contaminated or Degraded Lands • Research Article
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Abstract

Purpose

Poor soil structure and instability are primary problems in salt-affected soil, which is formed by excessive amounts of exchangeable Na+ and inadequate cementing substances in the soil. Long-term cattle manure application is a management practice for salt-affected soil that can change the distribution of soil aggregates and increase the stability of soil aggregates.

Methods

Experiments were carried out in a randomized block design comprising 5 treatments according to the number of years of cattle manure application. Soils to which cattle manure was applied for 7, 12, 15 and 18 years were used as the experimental treatments, and soil without cattle manure application was used as the control treatment. Soil aggregate destruction, organic matter contents, and exchangeable cations were measured, and the soil percentage of aggregate destruction was calculated.

Results

The results indicated that the application of cattle manure to the salt-affected soil significantly increased the organic matter content and the exchangeable Ca2+ and Mg2+ in water-stable aggregates and significantly decreased the exchangeable Na+ and soil pH compared to those in untreated soil in all fractions (P < 0.05). The abundance of water-stable microaggregates (WSAs < 0.25 mm) was reduced, while that of mechanically stable microaggregates (MSAs < 0.25 mm) increased with increasing years of cattle manure application.

Conclusion

We concluded that applying cattle manure to salt-affected soil led to a reduction in exchangeable Na+ and increases in exchangeable Ca2+ and organic matter contents in soil aggregates; these changes caused the agglomeration of soil aggregates and thus a decrease in the soil percentage of aggregate destruction and an increase in soil aggregate stability, ultimately resulting in an increase in macroaggregate (WSAs > 0.25 mm) abundance.

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Acknowledgements

The authors sincerely appreciate the staff of the laboratory of Soil Degradation Control and Remediation, School of Resources and Environment, and Northeast Agricultural University. This study was funded by the National Natural Science Foundation of China (42177320).

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Authors and Affiliations

Authors

Contributions

All authors contributed to the study conception and design. Soil samples were collected by Shuo Zhao, Fei Yu, Cheyu Zhai, Rui Zhong, Zhao Ying and Yong Wang laboratory analysis of soil samples was done by Shuo Zhao, data collection and analysis were performed by Shuo Zhao. The manuscript was written by Shuo Zhao and all authors commented on the manuscript. Manuscript was reviewed and edited by Qingfeng Meng and Juan Zhang, and all authors read and approved the final manuscript.

Corresponding author

Correspondence to Qingfeng Meng.

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I would like to declare on behalf of my co-authors that the content has not been published or submitted for publication elsewhere, in whole or in part. All the authors listed have approved the manuscript that is enclosed.

Data availability

Date and results were honestly, and without fabrication, falsification or inappropriate data manipulation.

Conflict of interest

The authors have no competing interests to declare that are relevant to the content of this article.

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Responsible editor: Yan He

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Zhao, S., Yu, F., Zhai, C. et al. Long-term effects of cattle manure application on the soil aggregate stability of salt-affected soil on the Songnen Plain of North-Eastern China. J Soils Sediments 23, 344–354 (2023). https://doi.org/10.1007/s11368-022-03317-6

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  • DOI: https://doi.org/10.1007/s11368-022-03317-6

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