Zheng et al. (2025) Corrigendum to “Micro-sprinkler irrigation with optimal irrigation regimes maintain grain yields while increasing carbon emission efficiency and water productivity of winter wheat on the North China Plain” [Agric. Water Manag. 321 (2025) 109933]

Identification

• Journal: Agricultural Water Management
• Year: 2025
• Date: 2025-12-11
• Authors: Hao Zheng, Chunlian Zheng, Chitao Sun, Yudong Zheng, Caiyun Cao, Anqi Zhang, Junpeng Zhang, Hongkai Dang
• DOI: 10.1016/j.agwat.2025.110065

Research Groups

• Shandong Provincial Key Laboratory of Agricultural Water Saving Technology and Equipment/College of Water Conservancy and Civil Engineering, Shandong Agricultural University, Tai’an, Shandong 271018, China
• Key Laboratory of Crop Drought Resistance Research of Hebei Province/Institute of Dryland Farming, Hebei Academy of Agriculture and Forestry Sciences, Hengshui, Hebei 053000, China

Short Summary

This corrigendum corrects numerical errors in a study that investigated the impact of micro-sprinkler irrigation with optimal regimes on winter wheat grain yields, carbon emission efficiency, and water productivity on the North China Plain, aiming to maintain yields while enhancing these efficiencies.

Objective

• The primary objective of the original study was to evaluate how micro-sprinkler irrigation with optimal irrigation regimes affects grain yields, carbon emission efficiency (CEE), and water productivity (CWP) of winter wheat, aiming to maintain yields while enhancing CEE and CWP.
• The objective of this corrigendum is to correct numerical errors in the abstract, Table 8, and Table 9 of the original article to ensure the accuracy of the reported findings.

Study Configuration

• Spatial Scale: North China Plain (inferred from the original paper's title).
• Temporal Scale: Two growing seasons, 2022–2023 and 2023–2024.

Methodology and Data

• Models used: Not specified in the corrigendum.
• Data sources: Field experimental data from different irrigation methods (drip irrigation (D) and micro-sprinkler irrigation (MS)) and supplemental irrigation levels (wetted soil layer depths of 0–0.2 m (W20), 0–0.3 m (W30), and 0–0.4 m (W40)). Measurements included grain yield (Y), crop water productivity (CWP), carbon emission efficiency (CEE), evapotranspiration (ET), and cumulative carbon emissions (CE).

Main Results

• Corrected Abstract Values:
  • Original abstract values of [7.3 % and 5.0 %] were corrected to [2.8 % and 3.0 %].
  • Original abstract values of [8.7 % and 4.6 %] and [7.6 % and 11.4 %] were corrected to [5.0 % and 5.5 %] and [10.2 % and 11.1 %], respectively.
  • Original abstract value of [59.7 %] was corrected to [13.3 %].
• Corrected Table 8 and 9 Values (Key findings from corrected data):
  • Micro-sprinkler (MS) vs. Drip (D) Irrigation: MS generally showed higher CWP and CEE compared to D. For example, in 2023–2024, MS had an average CWP of 2.34 kg m⁻³ and CEE of 1.30 kg kg(C)⁻¹, compared to D with 2.22 kg m⁻³ and 1.17 kg kg(C)⁻¹.
  • Irrigation Level (Wetted Depth): Increasing irrigation wetted soil layer depth from 0–0.2 m to 0–0.4 m generally increased grain yield, CWP, and CEE. W40 (0–0.4 m) consistently showed the highest values across both years for these metrics. For instance, in 2023–2024, W40 had an average grain yield of 0.8792 kg m⁻², CWP of 2.41 kg m⁻³, and CEE of 1.33 kg kg(C)⁻¹.
  • Optimal Coupling (MSW40): The coupling of micro-sprinkler irrigation with a 0–0.4 m wetted soil layer depth (MSW40) consistently yielded the highest grain yields, CWP, and CEE. In 2023–2024, MSW40 achieved 0.9366 kg m⁻² grain yield, 2.54 kg m⁻³ CWP, and 1.41 kg kg(C)⁻¹ CEE.
  • Evapotranspiration (ET) and Cumulative Carbon Emissions (CE) examples (from MSW40, 2023-2024): ET was 0.3698 m and CE was 0.6617 kg(C) m⁻².
  • Statistical Significance: Irrigation method (M), irrigation level (W), and year (Y) had significant effects on grain yield, CWP, and CEE (P < 0.01 for M and W, P < 0.05 for Y on CWP and CEE, non-significant on yield). Interaction effects were mostly non-significant, except for W × Y on grain yield and CEE (P < 0.05).

Contributions

• The corrigendum's primary contribution is to ensure the accuracy and reliability of the numerical results presented in the original research paper, particularly concerning the quantitative impacts of micro-sprinkler irrigation on winter wheat productivity and efficiency metrics.
• The original article, with its corrected data, contributes to the understanding of sustainable irrigation practices by demonstrating that optimal micro-sprinkler irrigation regimes can maintain high winter wheat grain yields while significantly improving crop water productivity and carbon emission efficiency on the North China Plain.

Funding

• Not specified in the corrigendum.

Citation

@article{Zheng2025Corrigendum,
  author = {Zheng, Hao and Zheng, Chunlian and Sun, Chitao and Zheng, Yudong and Cao, Caiyun and Zhang, Anqi and Zhang, Junpeng and Dang, Hongkai},
  title = {Corrigendum to “Micro-sprinkler irrigation with optimal irrigation regimes maintain grain yields while increasing carbon emission efficiency and water productivity of winter wheat on the North China Plain” [Agric. Water Manag. 321 (2025) 109933]},
  journal = {Agricultural Water Management},
  year = {2025},
  doi = {10.1016/j.agwat.2025.110065},
  url = {https://doi.org/10.1016/j.agwat.2025.110065}
}