Skip to main content
Log in

Uncertainty Evaluation of Best Management Practice Effectiveness Based on the AnnAGNPS Model

  • Published:
Water Resources Management Aims and scope Submit manuscript

Abstract

Uncertainty of best management practice (BMP) effectiveness is an important factor in the development of watershed management plans. This study explored the uncertainty of BMP effectiveness in reducing total nitrogen (TN) load owing to the uncertainty in hydrological parameters, thereby improving their reliability. A watershed model, annualized agricultural non-point source pollution (AnnAGNPS), was employed to evaluate the effectiveness of the four potentially feasible BMPs (i.e., riparian buffer, fertilization reduction, no-tillage, and parallel terraces) in the Shanmei Reservoir watershed, located in the southeastern coastal region of China. Annual and seasonal uncertainty variations in BMP effectiveness were evaluated based on ten parameter sets selected from 1000 parameter groups using Latin hypercube sampling. The results showed that the uncertainty of BMP effectiveness in reducing the TN load was larger than the uncertainty of TN load simulation at annual and seasonal time scales. The BMP effectiveness tended to be higher in summer than in the other seasons. The uncertainty of BMP effectiveness varied seasonally, and it was always lower in summer for most BMPs. This indicated that the impact of BMPs on reducing TN load was more effective, with a higher reduction rate and lower uncertainty in summer. Among the BMPs, the parallel terrace was the most effective measure for reducing TN load since it had the highest reduction rate and relatively low uncertainty. Although this study is a case study, it can provide a scientific reference for decision-making in uncertain situations when AnnAGNPS is applied for water quality simulations.

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

Similar content being viewed by others

References

Download references

Acknowledgements

This work was supported by the National Key Research and Development Program of China (2018YFE0206400), the Scientific Project from Fujian Provincial Department of Science and Technology (2019R1002-3 and 2021R1002006), and the Scientific Project from Fujian Key Laboratory of Severe Weather (2020KFKT01).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Ying Chen.

Ethics declarations

Ethics Approval

Not applicable, because this article does not contain any studies with human or animal subjects.

Consent to Participate

Not applicable, because this article does not contain any studies with human or animal subjects.

Conflict of Interest

The authors have no conflicts of interest to declare that are relevant to the content of this article.

Additional information

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

Chen, Y., Lu, B., Xu, C. et al. Uncertainty Evaluation of Best Management Practice Effectiveness Based on the AnnAGNPS Model. Water Resour Manage 36, 1307–1321 (2022). https://doi.org/10.1007/s11269-022-03082-8

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11269-022-03082-8

Keywords

Navigation