Skip to main content
Log in

Irrigation water quality used in paddy-rice fields in the Tejo river basin and its consequences

  • Original Paper
  • Published:
Mediterranean Geoscience Reviews Aims and scope Submit manuscript

Abstract

The irrigation water quality is crucial to ecosystems services, soils preservation, and crops’ development. Paddy-rice culture is highly implemented in the lower Tejo river basin and its tributaries (Almansor and Sorraia) alluviums, using irrigation waters with diverse types (ditches, water supply system, water reservoir, water canal, and rivers runoff) and irrigation abilities (C1S1–C4S4 by Wilcox classification). The factorial analysis Principal Components Analysis was used as a multivariate statistical method to understand the relations between water quality variables and their location in the irrigated area. The location of the higher irrigation water mineralization is in the Southern section of Lezírias area, where paddy-rice crops’ implementation prevails. As paddy-rice is considered a salts sensitive crop along with the considerable salinity supply through irrigation, sustainability and crop continuity concerns start to arise. The preservation of natural resources is mandatory to maintain agriculture practices in this highly productive but highly sensitive region. Increasing salinity in soils can force to adaptation measures, namely the blending of irrigation waters or the shift for more salinity tolerant cultures.

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

Similar content being viewed by others

References

Download references

Acknowledgements

This work was developed under the support of the research grant SFRH/BD/121892/2016 from National Funds through FCT-Portuguese Foundation for Science and Technology and the financial support of GeoBioTec (UIDB/04035/2020).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to D. Ferreira.

Ethics declarations

Conflict of interest

On behalf of all authors, the corresponding author states that there is no conflict of interest.

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

Ferreira, D., Simões, M., Reboredo, F. et al. Irrigation water quality used in paddy-rice fields in the Tejo river basin and its consequences. Med. Geosc. Rev. 3, 339–348 (2021). https://doi.org/10.1007/s42990-021-00066-5

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s42990-021-00066-5

Keywords

Navigation