@article{c983e6fa9f08443187c462a1c6cdbdd4,
title = "Hydroclimatic extremes contribute to asymmetric trends in ecosystem productivity loss",
abstract = "Gross primary production is the basis of global carbon uptake. Gross primary production losses are often related to hydroclimatic extremes such as droughts and heatwaves, but the trend of such losses driven by hydroclimatic extremes remains unclear. Using observationally-constrained and process-based model data from 1982-2016, we show that drought-heat events, drought-cold events, droughts and heatwaves are the dominant drivers of gross primary production loss. Losses associated with these drivers increase in northern midlatitude ecosystem but decrease in pantropical ecosystems, thereby contributing to around 70% of the variability in total gross primary production losses. These asymmetric trends are caused by an increase in the magnitude of gross primary production losses in northern midlatitudes and by a decrease in the frequency of gross primary production loss events in pantropical ecosystems. Our results suggest that the pantropics may have become less vulnerable to hydroclimatic variability over recent decades whereas gross primary production losses and hydroclimatic extremes in northern midlatitudes have become more closely entangled.",
author = "Jun Li and Emanuele Bevacqua and Zhaoli Wang and Stephen Sitch and Vivek Arora and Almut Arneth and Jain, {Atul K.} and Daniel Goll and Hanqin Tian and Jakob Zscheischler",
note = "J.L. would also like to thank Yao Zhang for fruitful conversations on the topic. The authors acknowledge the European COST Action DAMOCLES (CA17109). This project has received funding from the European Union{\textquoteright}s Horizon 2020 research and innovation program under grant agreement No 101003469. J.Z. acknowledges the Helmholtz Initiative and Networking Fund (Young Investigator Group COMPOUNDX, Grant Agreement VH-NG-1537). Z.W. acknowledges the National Natural Science Foundation of China (51879107,51709117), the Water Resource Science and Technology Innovation Program of Guangdong Province (2020-29), and the Guangdong Basic and Applied Basic Research Foundation (2019A1515111144). D.G. benefited from the ANR program CLAND (ANR-16-CONV-0003). J.L. would also like to thank Yao Zhang for fruitful conversations on the topic. The authors acknowledge the European COST Action DAMOCLES (CA17109). This project has received funding from the European Union{\textquoteright}s Horizon 2020 research and innovation program under grant agreement No 101003469. J.Z. acknowledges the Helmholtz Initiative and Networking Fund (Young Investigator Group COMPOUNDX, Grant Agreement VH-NG-1537). Z.W. acknowledges the National Natural Science Foundation of China (51879107,51709117), the Water Resource Science and Technology Innovation Program of Guangdong Province (2020-29), and the Guangdong Basic and Applied Basic Research Foundation (2019A1515111144). D.G. benefited from the ANR program CLAND (ANR-16-CONV-0003).",
year = "2023",
month = dec,
doi = "10.1038/s43247-023-00869-4",
language = "English (US)",
volume = "4",
journal = "Communications Earth and Environment",
issn = "2662-4435",
publisher = "Springer Nature",
number = "1",
}