Skip to main content

Advertisement

Log in

Shallow groundwater enhances water productivity of maize in arid area

  • Original Paper
  • Published:
Irrigation Science Aims and scope Submit manuscript

Abstract

Agricultural water saving measures play an important role to manage water shortages and agricultural production in arid and semiarid areas. In areas with shallow groundwater, capillary upflow from the groundwater is important for crops to receive adequate water under limited irrigation. To understand the effect of limited irrigation and groundwater on crop water use, a calibrated AquaCrop model with 2 years of field experimental data was used to simulate the increase in groundwater capillary in different depths of groundwater and amounts of irrigation amount. The results showed that the following: (1) Plant transpiration and actual evapotranspiration reached their maximum at a groundwater depth of 1.5 m and decreased as the levels of groundwater decreased. Plant transpiration and actual evapotranspiration remained almost unchanged when the groundwater depth was > 2.5 m. (2) The capillary rise gradually decreased as the groundwater depth increased. When the groundwater depth was at 1 m, the capillary rise could reach 224.3 mm, and the capillary rise in seedling stage accounted for 61.9% of the whole growth period. (3) When the groundwater depth varied from 1.5 to 2.5 m, both the water productivity and irrigation water productivity of maize were maintained at a high level. Since the adjustment of maize yield should not be lower than the local average level, the appropriate irrigation amount should be 279 mm, and irrigation should be conducted during the key growth periods of maize (jointing, tasseling and filling stages). These results should be useful to improve irrigation management considering the groundwater depth distribution for the sustainable development of the semiarid and arid regions and alleviate the shortage of water resources.

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

Similar content being viewed by others

References

Download references

Acknowledgements

This research was jointly supported by the National Science Foundation of China (Grant numbers: 51839006, 52069021).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Ruiping Li.

Ethics declarations

Conflict of interest

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Additional information

Publisher's Note

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

Appendices

Appendices

See Figs. 12, 13, 14, 15 and Table 5.

Fig. 12
figure 12

Calibration and validation of canopy cover

Fig. 13
figure 13

Calibration and validation of biomass

Fig. 14
figure 14figure 14figure 14figure 14

Calibration and validation of soil water content

Fig. 15
figure 15

Calibration and validation of yield and water productivity

Table 5 The fitting result of simulated values and measured values

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Dai, J., Li, R., Miao, Q. et al. Shallow groundwater enhances water productivity of maize in arid area. Irrig Sci 40, 885–908 (2022). https://doi.org/10.1007/s00271-022-00800-3

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00271-022-00800-3

Navigation