Lei et al. (2026) Analysis of the Impact of Water Conservancy Projects on Water Resource Use Efficiency and Vegetation Net Primary Productivity in an Arid Inland Basin

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Identification

• Journal: Agronomy
• Year: 2026
• Date: 2026-03-09
• Authors: Junqing Lei, Adilai Wufu, Hezhen Lou, Haibin Gu, Xinjun Wang, Chao Xu
• DOI: 10.3390/agronomy16050589

Research Groups

[Information not provided in the given text.]

Short Summary

This study investigated the mechanisms by which ecological water conveyance impacts Net Primary Productivity (NPP) in the Aiding Lake Basin, finding that despite an overall declining trend in mean annual NPP, water conveyance significantly and positively enhanced regional vegetation productivity.

Objective

• To investigate the mechanisms by which ecological water conveyance impacts Net Primary Productivity (NPP) in the Aiding Lake Basin.

Study Configuration

• Spatial Scale: Aiding Lake Basin, Northwest China.
• Temporal Scale: 2016 to 2023.

Methodology and Data

• Models used: CASA model.
• Data sources: Remote Sensing Hydrological Station technology, Google Earth Engine platform.

Main Results

• Runoff increased, and conveyance volumes showed significant variation, with the Baiyang River exhibiting the highest efficiency.
• Mean annual NPP displayed a significant declining trend over the study period.
• NPP values were higher upstream than downstream, and higher in the west compared to the east.
• Ecological water conveyance positively enhanced regional vegetation productivity.
• A significant positive correlation was observed between ecological water conveyance and NPP, which was stronger at the annual scale.

Contributions

• Provides a new framework for evaluating the benefits of ecological water conveyance.
• Offers a theoretical basis for ecological conservation in Northwest China.

Funding

[Information not provided in the given text.]

Citation

@article{Lei2026Analysis,
  author = {Lei, Junqing and Wufu, Adilai and Lou, Hezhen and Gu, Haibin and Wang, Xinjun and Xu, Chao},
  title = {Analysis of the Impact of Water Conservancy Projects on Water Resource Use Efficiency and Vegetation Net Primary Productivity in an Arid Inland Basin},
  journal = {Agronomy},
  year = {2026},
  doi = {10.3390/agronomy16050589},
  url = {https://doi.org/10.3390/agronomy16050589}
}