NDLI: Leaf shape influences the scaling of leaf dry mass vs. area: a test case using bamboos

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Leaf shape influences the scaling of leaf dry mass vs. area: a test case using bamboos

Content Provider	Springer Nature : BioMed Central
Author	Lin, Shuyan Niklas, Karl J. Wan, Yawen Hölscher, Dirk Hui, Cang Ding, Yulong Shi, Peijian
Abstract	Key message A highly significant and positive scaling relationship between bamboo leaf dry mass and leaf surface area was observed; leaf shape (here, represented by the quotient of leaf width and length) had a significant influence on the scaling exponent of leaf dry mass vs. area. Context The scaling of leaf dry mass vs. leaf area is important for understanding how plants effectively intercept sunlight and invest carbon to do so. However, comparatively few, if any, studies have focused on whether leaf shape influences this scaling relationship. Aims In order to explore the effects of leaf shape on the scaling relationship between leaf dry mass and area, we examined 101 species, varieties, forms, and cultivars of bamboo growing in China and identified the relationship between the scaling exponent of leaf dry mass vs. area and leaf shape. This taxon was used because its leaf shape is conserved across species and, therefore, easily quantified. Methods Ten thousand and forty-five leaves from 101 bamboo species, varieties, forms, and cultivars growing in China were collected, and leaf dry mass, the quotient of leaf width and length, leaf area, and leaf dry mass per unit area were measured. The effect of leaf shape that can be easily quantified using the quotient of leaf width and length on the relevant and ecologically important scaling exponents was explored using this data base. Results Leaf dry mass and area differed significantly across bamboo genera, and even within the same genus. However, a statistically robust log-log linear and positive scaling relationship was observed for mass and area with a 1.115 scaling exponent (95% CI = 1.107, 1.122; r2 = 0.907). Leaf shape had a significant influence on the numerical values of the scaling exponent of leaf dry mass vs. area. When the median of the quotient of leaf width and length was below 0.125, the numerical value of the scaling exponent increased with increasing quotient of leaf width and length. When the median of the quotient of leaf width and length was above 0.125, the scaling exponent numerically decreased toward 1.0. Conclusion We show, for the first time, that a significant relationship exists between leaf shape and the numerical values of scaling exponents governing the scaling of leaf dry mass with respect to leaf area. In addition, we show that with the quotient of leaf width and length increasing mean LMA increases, which implies a negative correlation between mean LMA and the estimated exponent of leaf dry mass vs. area for the grouped data based on the sorted quotients of leaf width and length.
Related Links	https://annforsci.biomedcentral.com/counter/pdf/10.1007/s13595-019-0911-2.pdf
Ending Page	15
Page Count	15
Starting Page	1
File Format	HTM / HTML
DOI	10.1007/s13595-019-0911-2
Journal	Annals of Forest Science
Issue Number	1
Volume Number	77
Language	English
Publisher	BioMed Central
Publisher Date	2020-01-21
Access Restriction	Open
Subject Keyword	Forestry Wood Science & Technology Forestry Management Tree Biology Environment Bambusoideae Leaf traits Reduced major axis Scaling exponent Quotient of leaf width and length
Content Type	Text
Resource Type	Article
Subject	Forestry Ecology

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Leaf shape influences the scaling of leaf dry mass vs. area: a test case using bamboos

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Leaf shape influences the scaling of leaf dry mass vs. area: a test case using bamboos