Variability of leaf functional traits of invasive tree Rhus typhina L. in North China
Mei Wei , Shu Wang , Bing-de Wu , Kun Jiang , Jia-wei Zhou , Cong-yan Wang
Journal of Central South University ›› 2020, Vol. 27 ›› Issue (1) : 155 -163.
Variability of leaf functional traits of invasive tree Rhus typhina L. in North China
Functional traits, specifically leaf functional traits, are core-topics to explore importance to the invasion success of invasive plant species. This study aims to address the differences in leaf functional traits and their corresponding variability of the invasive tree staghorn sumac Rhus typhina L. with different invasion success, including lower and higher invasion success, in two climatic regions in North China, including a warm temperate region and a cold temperate region. No significant differences were found for leaf functional traits of staghorn sumac across different invasion success. However, the variability of leaf chlorophyll and nitrogen concentrations of staghorn sumac under higher invasion success were approximately 66.023% and 68.615% higher than those under lower invasion success, respectively. The leaf chlorophyll and nitrogen concentrations of staghorn sumac in the warm temperate region were approximately 18.432% and 16.337% higher than those in cold temperate region, respectively. The variability of specific leaf area of staghorn sumac in warm temperate region was approximately 59.802% higher than that in cold temperate region. Accordingly, leaf chlorophyll and N concentrations as well as specific leaf area of staghorn sumac and their corresponding variability may play an essential role in shaping ecological success of studied invader along a climatic gradient.
climatic region / invasive tree / coefficient of variation / variability / specific leaf area / Rhus typhina L.
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