Liu et al. (2026) Biome-dependent forest GPP responses to compound drought and heat from 2001 to 2023

Identification

• Journal: Agricultural and Forest Meteorology
• Year: 2026
• Date: 2026-08-11
• Authors: Jinping Liu, Yanqun Ren, Qingfeng Hu, Shoukai Chen, Mingzhe Li
• DOI: 10.1016/j.agrformet.2026.111408

Research Groups

• College of Surveying and Geo-Informatics, North China University of Water Resources and Electric Power

Short Summary

This study examines the joint response of forest gross primary production (GPP) to compound drought and heat events from 2001 to 2023 across five forest biomes. The results show that the interaction between drought and heat can lead to a more negative GPP anomaly than expected from their individual effects.

Objective

• Investigate the factorial interaction between drought and heat on forest gross primary production (GPP) in different biomes.

Study Configuration

• Spatial Scale: Global, with focus on five forest biomes: tropical/subtropical broadleaf forest (TRF), tropical/subtropical coniferous forest (TSF), Mediterranean forest (MEF), temperate forest (TDF), and boreal forest (BOR).
• Temporal Scale: 2001-2023

Methodology and Data

• Models used: Factorial model, Generalized Additive Model (GAM)
• Data sources: Moderate Resolution Imaging Spectroradiometer (MODIS) daytime land-surface temperature, Standardized Precipitation Evapotranspiration Index (SPEI)

Main Results

• The interaction between drought and heat leads to a more negative GPP anomaly than expected from their individual effects in TRF (-3.54%), TSF (-4.32%), TDF (-6.08%), with uncertain results for MEF and BOR.

Contributions

• This study provides new insights into the joint response of forest GPP to compound drought and heat events, highlighting the importance of considering interactions between climate stressors in predicting ecosystem responses.

Funding

• Not specified

Citation

@article{Liu2026Biomedependent,
  author = {Liu, Jinping and Ren, Yanqun and Hu, Qingfeng and Chen, Shoukai and Li, Mingzhe},
  title = {Biome-dependent forest GPP responses to compound drought and heat from 2001 to 2023},
  journal = {Agricultural and Forest Meteorology},
  year = {2026},
  doi = {10.1016/j.agrformet.2026.111408},
  url = {https://doi.org/10.1016/j.agrformet.2026.111408}
}