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	Leaf traits and relationships differ with season as well as among species groupings in a managed Southeastern China forest landscape
	Chen F. S. ; Niklas K. J. ; Chen G. S. ; Guo D. L.
	2012
关键词	Garden plantation Leaf nutrient concentration Mid-subtropical region Nutrient resorption Plant functional group (PFG) Specificleaf area (SLA) life-span functional traits nutrient dynamics plant resorption growth trees soil nitrogen leaves
英文摘要	The relationships among leaf traits often reflect plant adaptation for coping with nutrient resources. However, the seasonal variations in leaf traits and their relationship with soil nutrients are not well understood. We sampled seven major functional traits of thirty trees and nine shrubs (sorted into different plant functional groups, PFGs, based on their growth form, leaf lifespan, and leaf shape) at different seasons in a managed forest plantation of Southeastern China. Both green leaf nitrogen and phosphorus concentrations (N-green and P-green) decreased significantly from spring and summer to autumn, and varied significantly with PFGs (P < 0.05) at different times of the year. Across all plants, specific leaf area correlated positively with N-green and P-green in spring, summer, and winter, but not in autumn; N resorption proficiency generally correlated positively with N-green in each season, while P resorption efficiency correlated positively with P-green in spring and summer, but not in autumn and winter. Soil nitrogen availability correlated negatively with leaf nutrient traits in some seasons. In conclusion, leaf trait relationships varied among the seasons and among PFGs. Seasonal dynamics of leaf traits as well as soil nutrients' relations must be considered when exploring plant feedback to soil nutrients.
出处	Plant Ecology
卷	213
期	9
页	1489-1502
收录类别	SCI
语种	英语
ISSN号	1385-0237
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/30908]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Chen F. S.,Niklas K. J.,Chen G. S.,et al. Leaf traits and relationships differ with season as well as among species groupings in a managed Southeastern China forest landscape. 2012.

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