Zhan et al. (2025) Exacerbated Variability and Extremes in Streamflow Across Half of China From 1961 to 2018

⚠️ Warning: This summary was generated from the abstract only, as the full text was not available.

Identification

• Journal: Water Resources Research
• Year: 2025
• Date: 2025-12-01
• Authors: Yilin Zhan, Guobao Xu, Bo Wang, Ge Wu, Jiarui Wu, Tingting Zhao, Xiaowei Wu
• DOI: 10.1029/2025wr041968

Research Groups

Not explicitly mentioned in the abstract.

Short Summary

This study investigated trends in seasonal streamflow variability and extremes across China from 1961 to 2018, revealing significant increases in approximately half of the country, particularly in the Northwest River Basin and during summer.

Objective

• To quantify and analyze the trends in seasonal streamflow variability and extremes across China from 1961 to 2018, addressing a knowledge gap in comprehensive nationwide assessments.

Study Configuration

• Spatial Scale: National scale, covering China using gridded data.
• Temporal Scale: 58 years (1961-2018), analyzed at seasonal and monthly resolutions.

Methodology and Data

• Models used: No specific hydrological models were mentioned.
• Data sources: Gridded monthly streamflow data. The specific origin (e.g., satellite, observation, reanalysis) was not detailed in the abstract.

Main Results

• Streamflow variability and extremes significantly increased in approximately 35.9% to 52.9% of the grid points across China.
• The Northwest River Basin exhibited particularly strong increases in streamflow variability and extremes (over 52% of its grid points).
• A strong positive correlation was found between streamflow variability and extremely high streamflows across China (Pearson's r > 0.41, p < 0.05).
• At the seasonal scale, the largest increases in streamflow extreme trends were observed in summer, with a mean slope of 0.094 × 10⁻³ meters per year.
• Autumn showed milder decreases in streamflow extreme trends, with a mean slope of -0.0009 × 10⁻³ meters per year, affecting over 25.8% of grid points.

Contributions

• Provides the first comprehensive nationwide assessment of seasonal streamflow variability and extreme trends across China, filling a critical knowledge gap.
• Offers new perspectives and insights crucial for the development of sustainable strategies for watershed and water resource management in China.

Funding

Not explicitly mentioned in the abstract.

Citation

@article{Zhan2025Exacerbated,
  author = {Zhan, Yilin and Xu, Guobao and Wang, Bo and Wu, Ge and Wu, Jiarui and Zhao, Tingting and Wu, Xiaowei},
  title = {Exacerbated Variability and Extremes in Streamflow Across Half of China From 1961 to 2018},
  journal = {Water Resources Research},
  year = {2025},
  doi = {10.1029/2025wr041968},
  url = {https://doi.org/10.1029/2025wr041968}
}