Contrasting responses of peak vegetation growth to asymmetric warming : Evidences from FLUXNET and satellite observations

© 2023 John Wiley & Sons Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Global change biology. - 1999. - 29(2023), 8 vom: 19. Apr., Seite 2363-2379
1. Verfasser: Liu, Ying (VerfasserIn)
Weitere Verfasser: Wu, Chaoyang, Wang, Xiaoyue, Zhang, Yao
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Global change biology
Schlagworte:Journal Article EVI NDVI asymmetrical warming drought peak growth Soil Water 059QF0KO0R
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520 |a The peak growth of plant in summer is an important indicator of the capacity of terrestrial ecosystem productivity, and ongoing studies have shown its responses to climate warming as represented in the mean temperature. However, the impacts from the asymmetrical warming, that is, different rates in the changes of daytime (Tmax ) and nighttime (Tmin ) warming were mostly ignored. Using 60 flux sites (674 site-year in total) measurements and satellite observations from two independent satellite platforms (Global Inventory Monitoring and Modeling Studies [1982-2015]; MODIS [2000-2020]) over the Northern Hemisphere (≥30°N), here we show that the peak growth, as represented by both flux-based maximum primary productivity and the maximum greenness indices (maximum normalized difference vegetation index and enhanced vegetation index), responded oppositely to daytime and nighttime warming. T max - T min + (peak growth showed negative responses to Tmax , but positive responses to Tmin ) dominated in most ecosystems and climate types, especially in water-limited ecosystems, while T max + T min - (peak growth showed positive responses to Tmax , but negative responses to Tmin ) was primarily observed in high latitude regions. These contrasting responses could be explained by the strong association between asymmetric warming and water conditions, including soil moisture, evapotranspiration/potential evapotranspiration, and the vapor pressure deficit. Our results are therefore important to the understanding of the responses of peak growth to climate change, and consequently a better representation of asymmetrical warming in future ecosystem models by differentiating the contributions between daytime and nighttime warming 
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700 1 |a Wu, Chaoyang  |e verfasserin  |4 aut 
700 1 |a Wang, Xiaoyue  |e verfasserin  |4 aut 
700 1 |a Zhang, Yao  |e verfasserin  |4 aut 
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