Leaf Trait Covariation and Its Controls: A Quantitative Data Analysis Along a Subtropical Elevation Gradient

A comprehensive analysis of leaf trait covariation along a subtropical elevation gradient on Mount Huangshan reveals that 78% of the variation in plant functional traits can be attributed to climate, soil, and family controls. The study found that soil water content (SW) and vapor pressure deficit (VPD) significantly influence traits like leaf nitrogen per unit mass (Nmass) and leaf dry matter content (LDMC), while elevation negatively impacts the leaf internal-to-ambient CO2 ratio (χ). Multivariate analysis identified three principal components capturing 79% of trait covariation, primarily driven by within-site differences. Family distribution emerged as the most critical factor in shaping trait variation along the gradient, offering new insights into plant adaptation and providing practical guidelines for ecosystem management.

Yang, Y., Gou, R., Li, W., Kassout, J., Wu, J., Wang, L., Peng, C., & Lin, G. (2021). Leaf Trait Covariation and Its Controls: A Quantitative Data Analysis Along a Subtropical Elevation Gradient. Journal of Geophysical Research: Biogeosciences, 126(7). Portico. https://doi.org/10.1029/2021jg006378