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	Leaf morphological and anatomical traits from tropical to temperate coniferous forests: Mechanisms and influencing factors
	Tian M.; Yu, G. R.; He, N. P.; Hou, J. H.; Zheng, D.
	2016
关键词	economics spectrum stomatal density nitrogen-content rain-forest light trees area co2 photosynthesis worldwide
英文摘要	Leaf traits may reflect the adaptation mechanisms of plants to the environment. In this study, we investigated leaf morphological and anatomical traits in nine cold-temperate to tropical forests along a 4,200-km transect to test how they vary across latitudinal gradients. The results showed that leaf dry weight decreased (P < 0.05), while specific leaf area (SLA) increased (P < 0.05) with increasing latitude. Stomatal length and stomatal density did not change significantly, while stomatal pore area index increased (P < 0.05) with increasing latitude. The palisade-leaf mesophyll thickness ratio increased (P < 0.01), while the spongy-leaf mesophyll thickness ratio decreased, with increasing latitude (P < 0.01). Climate and leaf nutrients were the main factors that regulated leaf morphological and anatomical traits. Furthermore, we identified positive correlations between leaf area and leaf dry weight, leaf thickness and palisade mesophyll thickness, but negative correlations between stomatal length and stomatal density (all P < 0.01). The observed negative correlations represented the adaptive mechanisms of leaves through their morphological and anatomical traits. These findings provided new insights into the responses of leaf morphological and anatomical traits to climate changes and important parameters for future model optimization.
出处	Scientific Reports
卷	6
收录类别	SCI
语种	英语
ISSN号	2045-2322
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/43312]
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	Tian M.,Yu, G. R.,He, N. P.,et al. Leaf morphological and anatomical traits from tropical to temperate coniferous forests: Mechanisms and influencing factors. 2016.

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