Relationships of stomatal morphology to the environment across plant communities

Congcong Liu, Lawren Sack, Ying Li, Jiahui Zhang, Kailiang Yu, Qiongyu Zhang, Nianpeng He () and Guirui Yu
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Congcong Liu: National Ethnic Affairs Commission
Lawren Sack: University of California
Ying Li: Chinese Academy of Sciences
Jiahui Zhang: Chinese Academy of Sciences
Kailiang Yu: Princeton University
Qiongyu Zhang: Chinese Academy of Sciences
Nianpeng He: Chinese Academy of Sciences
Guirui Yu: Chinese Academy of Sciences

Nature Communications, 2023, vol. 14, issue 1, 1-11

Abstract: Abstract The relationship between stomatal traits and environmental drivers across plant communities has important implications for ecosystem carbon and water fluxes, but it has remained unclear. Here, we measure the stomatal morphology of 4492 species-site combinations in 340 vegetation plots across China and calculate their community-weighted values for mean, variance, skewness, and kurtosis. We demonstrate a trade-off between stomatal density and size at the community level. The community-weighted mean and variance of stomatal density are mainly associated with precipitation, while that of stomatal size is mainly associated with temperature, and the skewness and kurtosis of stomatal traits are less related to climatic and soil variables. Beyond mean climate variables, stomatal trait moments also vary with climatic seasonality and extreme conditions. Our findings extend the knowledge of stomatal trait–environment relationships to the ecosystem scale, with applications in predicting future water and carbon cycles.

Date: 2023
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DOI: 10.1038/s41467-023-42136-2

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