Application of leaf size and leafing intensity scaling across subtropical trees

Sun, Jun; Chen, Xiaoping; Wang, Mantang; Li, Jinlong; Zhong, Quanlin; Cheng, Dongliang

doi:10.1002/ece3.6943

Cited by 6 publications

(11 citation statements)

References 42 publications

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“…But our study showed that the LA gradually increased up to 2,500 m. This non-intuitive pattern might be caused by the influence of precipitation on LA. The lowest elevation of our plots was located in a dry valley, where plants exhibited smaller leaves ( Niinemets, 2001 ; Rudgers et al, 2019 ; Sun et al, 2020 ). As the altitude increased, precipitation and atmospheric humidity gradually increased, and LA also increased.…”

Section: Discussionmentioning

confidence: 99%

“…Leaf mass and area are two important leaf traits for the most vascular plants. The relative changes of leaf mass and area reveal the metabolic activity and photosynthesis potential, which are not invariable ( Liu et al, 2016 ; Umaña and Swenson, 2019 ; Sun et al, 2020 ). The scaling exponent and normalization constant for LDW–LFW, LA–LFW, and LA–LDW of this study were significant positive correlations.…”

Section: Discussionmentioning

confidence: 99%

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Varying Relationship Between Vascular Plant Leaf Area and Leaf Biomass Along an Elevational Gradient on the Eastern Qinghai-Tibet Plateau

et al. 2022

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The altitudinal gradient is one of the driving factors leading to leaf trait variation. It is crucial to understand the response and adaptation strategies of plants to explore the variation of leaf traits and their scaling relationship along the altitudinal gradient. We measured six main leaf traits of 257 woody species at 26 altitudes ranging from 1,050 to 3,500 m within the eastern Qinghai-Tibet Plateau and analyzed the scaling relationships among leaf fresh weight, leaf dry weight, and leaf area. The results showed that leaf dry weight increased significantly with elevation, while leaf fresh weight and leaf area showed a unimodal change. Leaf dry weight and fresh weight showed an allometric relationship, and leaf fresh weight increased faster than leaf dry weight. The scaling exponent of leaf area and leaf fresh weight (or dry weight) was significantly greater than 1, indicating that there have increasing returns for pooled data. For α and normalization constants (β), only β of leaf area vs. leaf fresh weight (or dry weight) had significantly increased with altitude. All three paired traits had positive linear relationships between α and β. Our findings suggest that plants adapt to altitudinal gradient by changing leaf area and biomass investment and coordinating scaling relationships among traits. But leaf traits variation had a minor effect on scaling exponent.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Varying Relationship Between Vascular Plant Leaf Area and Leaf Biomass Along an Elevational Gradient on the Eastern Qinghai-Tibet Plateau

et al. 2022

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“…For trees, a shoot is a fundamental unit of growth ( Sterck et al , 2005 ; Sterck and Schieving, 2007 ; Lecigne et al , 2021 ) and reproduction ( Chen et al , 2009 ; Scott and Aarssen, 2013 ; Miranda et al , 2019 ; Fajardo et al , 2020 ). Given its importance, allometric relationships of shoot size and total shoot leaf area have been important topics in plant ecophysiology ( Corner, 1949 ; White, 1983 ; Ackerly and Donoghue, 1998 ; Brouat et al , 1998 ; Westoby and Wright, 2003 ; Kleiman and Aarssen, 2007 ; Olson et al ., 2009 , 2018 ; Sun et al ., 2010 , 2020 ; Yan et al , 2013 ; Trueba et al , 2016 ; Fan et al , 2017 ; Smith et al , 2017 ; Zhu et al , 2019 ; Fajardo et al , 2020 ). However, most previous studies on leaf vs. shoot size allometry have focused on the relationship among shoot size, total shoot leaf area, total leaf number and/or mean individual leaf size on the shoot.…”

Section: Introductionmentioning

confidence: 99%

“… Koyama et al , 2012 ; Smith et al , 2017 ), this fact was not considered in most previous studies on leaf size – shoot size allometry (e.g. Sun et al ., 2006 , 2010 , 2017 , 2019 a , b , 2020 ; Kleiman and Aarssen, 2007 ; Ogawa, 2008 ; Yang et al ., 2008 , 2009 , 2010 ; Milla, 2009 ; Xiang et al , 2009 a , 2010 ; Whitman and Aarssen, 2010 ; Dombroskie and Aarssen, 2012 ; Scott and Aarssen, 2012 , 2013 ; Yan et al , 2013 ; Dombroskie et al , 2016 ; Trueba et al , 2016 ; Olson et al , 2018 ; Miranda et al , 2019 ; Zhu et al , 2019 ; Fajardo et al , 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Scaling the leaf length-times-width equation to predict total leaf area of shoots

Koyama

Smith

2022

Annals of Botany

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Background and Aims An individual plant consists of different-sized shoots, each of which consists of different-sized leaves. To predict plant-level physiological responses from the responses of individual leaves, modeling this within-shoot leaf size variations is necessary. Within-plant leaf trait variation has been well investigated in canopy photosynthesis models but not so well in plant allometry. Therefore, integration of these two different approaches is needed. Methods We focused on an established leaf-level relationship that the area of an individual leaf lamina is proportional to the product of its length and width. The geometric interpretation of this equation is that different-sized leaf laminas from a single species share the same basic form. Based on this shared basic form, we synthesized a new length-times-width equation predicting total shoot leaf area from the collective dimensions of leaves that comprise a shoot. Furthermore, we showed that several previously established empirical relations, including the allometric relationships between total shoot leaf area, maximum individual leaf length within the shoot, and total leaf number of the shoot, can be unified under the same geometric argument. We tested the model predictions using five species, all of which have simple leaves, selected from diverse taxa (Magnoliids, Monocots, and Eudicots) and from different growth forms (trees, erect herbs and rosette herbs). Key Results For all five species, the length-times-width equation explained within-species variation of total leaf area of a shoot with high accuracy (R 2 > 0.994). These strong relationships existed despite leaf dimensions scaling very differently between species. We also found good support for all derived predictions from the model (R 2 > 0.85). Conclusions Our model can be incorporated to improve previous models of allometry that do not consider within-shoot size variation of individual leaves, providing a cross-scale linkage between individual leaf-size variation and shoot-size variation.

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“…The changes in leaf sizes are correlated with the availability of water and nutrients in the habitat and other plant functional traits [ 37 ]. Sun et al analyzed the twigs of 123 species datasets compiled in the subtropical mountain forest, the minimum leaf mass and maximum leaf mass versus the LI based on SM (LI), and the scaling exponents ranged from −1.24 to −1.04 [ 38 ]. Our study showed a significant negative isometric scaling relationship between ILM and LI in the three habitats.…”

Section: Discussionmentioning

confidence: 99%

Twig biomass allocation of Betula platyphylla in different habitats in Wudalianchi Volcano, northeast China

et al. 2021

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Understanding the response of biomass allocation in current-year twigs is crucial for elucidating the plant life-history strategies under heterogeneous volcanic habitats. We aimed to test whether twig biomass allocation, within-leaf biomass allocation, and the size-number trade-off of Betula platyphylla would be influenced. We measured twig traits of B. platyphylla in Wudalianchi volcanic kipuka, the lava platform, and Shankou lake in northeastern China using standardized major axis analyses. The results showed that the leaf number, total lamina mass (TLAM), stem mass (SM), and twig mass (TM) were significantly different between the three habitats and were greatest in kipuka with abundant soil nutrients. TLAM and SM scaled allometrically with respect to TM, while the normalization constants of the lava platform differ significantly between kipuka and Shankou lake, which showed that under certain TM, leaves gain more biomass in the lava platform. However, within the leaf, individual lamina mass (ILM) scaled isometrically with respect to individual petiole mass (IPM) in kipuka and the lava platform, but ILM scaled allometrically to IPM in Shankou lake. Our results indicated that inhabitats influenced the twig traits and biomass allocation and within-leaf biomass allocation are strategies for plants to adapt to volcanic heterogeneous habitats.

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Application of leaf size and leafing intensity scaling across subtropical trees

Cited by 6 publications

References 42 publications

Varying Relationship Between Vascular Plant Leaf Area and Leaf Biomass Along an Elevational Gradient on the Eastern Qinghai-Tibet Plateau

Varying Relationship Between Vascular Plant Leaf Area and Leaf Biomass Along an Elevational Gradient on the Eastern Qinghai-Tibet Plateau

Scaling the leaf length-times-width equation to predict total leaf area of shoots

Twig biomass allocation of Betula platyphylla in different habitats in Wudalianchi Volcano, northeast China

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