Soil phosphorus drives plant trait variations in a mature subtropical forest

© 2022 John Wiley & Sons Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Global change biology. - 1999. - 28(2022), 10 vom: 15. Mai, Seite 3310-3320
1. Verfasser: Cui, Erqian (VerfasserIn)
Weitere Verfasser: Lu, Ruiling, Xu, Xiaoni, Sun, Huanfa, Qiao, Yang, Ping, Jiaye, Qiu, Shuying, Lin, Yihua, Bao, Jiehuan, Yong, Yutong, Zheng, Zemei, Yan, Enrong, Xia, Jianyang
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Global change biology
Schlagworte:Journal Article nutrient addition plant functional traits soil phosphorus constraint species and community traits subtropical forest Soil Phosphorus 27YLU75U4W Nitrogen N762921K75
Beschreibung
Zusammenfassung:© 2022 John Wiley & Sons Ltd.
Earth system models are implementing soil phosphorus dynamic and plant functional traits to predict functional changes in global forests. However, the linkage between soil phosphorus and plant traits lacks empirical evidence, especially in mature forests. Here, we examined the soil phosphorus constraint on plant functional traits in a mature subtropical forest based on observations of 9943 individuals from 90 species in a 5-ha forest dynamic plot and 405 individuals from 15 species in an adjacent 10-year nutrient-addition experiment. We first confirmed a pervasive phosphorus limitation on subtropical tree growth based on leaf N:P ratios. Then, we found that soil phosphorus dominated multidimensional trait variations in the 5-ha forest dynamic plot. Soil phosphorus content explained 44% and 53% of the variance in the traits defining the main functional space across species and communities, respectively. Lastly, we found much stronger phosphorus effects on most plant functional traits than nitrogen at both species and community levels in the 10-year nutrient-addition experiment. This study provides evidence for the consistent pattern of soil phosphorus constraint on plant trait variations between the species and community levels in a mature evergreen broadleaf forest in the East Asian monsoon region. These findings shed light on the predominant role of soil phosphorus on plant functional trait variations in mature subtropical forests, providing new insights for models to incorporate soil phosphorus constraint in predicting future vegetation dynamics
Beschreibung:Date Completed 15.04.2022
Date Revised 14.05.2022
published: Print-Electronic
Citation Status MEDLINE
ISSN:1365-2486
DOI:10.1111/gcb.16148