Du et al. (2026) Event-specific gross primary productivity anomaly responses to abrupt dry–wet hydrological transitions

Identification

• Journal: Agricultural and Forest Meteorology
• Year: 2026
• Date: 2026-09-11
• Authors: Shixiong Du, Baowei Yan, Changmei Liang, Jun Zhang, Xuerui Zhou, Dongxu Yang, Jianbo Chang, Xiaoting Lin
• DOI: 10.1016/j.agrformet.2026.111460

Research Groups

• School of Civil and Hydraulic Engineering, Huazhong University of Science and Technology (HUST)
• Hubei Key Laboratory of Digital River Basin Science and Technology
• Hubei Water Saving Research Center
• Bureau of Hydrology, Changjiang Water Resources Commission

Short Summary

This study examines the relationship between abrupt dry-wet hydrological transitions and gross primary productivity (GPP) anomalies in the Yangtze River Basin from 1982 to 2018. The results show that GPP responses depend on the combined effects of hydrological change and atmospheric constraints.

Objective

• Investigate how event-specific gross primary productivity anomaly responses are affected by abrupt dry-wet hydrological transitions

Study Configuration

• Spatial Scale: Yangtze River Basin, China
• Temporal Scale: 1982-2018 (37 years)

Methodology and Data

• Models used: Not specified in the paper
• Data sources: Runoff and GPP series from 1982 to 2018

Main Results

• Abrupt dry-wet transitions are associated with GPP anomalies beyond random temporal coincidence
• D2W (Dry to Wet) transitions tend to produce larger peak responses than W2D (Wet to Dry) transitions
• Environmental controls, such as shortwave radiation and precipitation, influence the direction-consistent GPP anomalies

Contributions

• This study provides new insights into the relationship between abrupt hydrological transitions and ecosystem productivity responses
• The results highlight the importance of considering both hydrological change and atmospheric constraints in understanding GPP anomaly responses

Funding

• Not specified in the paper

Citation

@article{Du2026Eventspecific,
  author = {Du, Shixiong and Yan, Baowei and Liang, Changmei and Zhang, Jun and Zhou, Xuerui and Yang, Dongxu and Chang, Jianbo and Lin, Xiaoting},
  title = {Event-specific gross primary productivity anomaly responses to abrupt dry–wet hydrological transitions},
  journal = {Agricultural and Forest Meteorology},
  year = {2026},
  doi = {10.1016/j.agrformet.2026.111460},
  url = {https://doi.org/10.1016/j.agrformet.2026.111460}
}