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Phenology of Leaf Optical Properties and Their Relationship to Mesophyll Development in Cool-temperate Deciduous Broad-leaf Trees. by Noda, Hibiki M.; Muraoka, Hiroyuki; Nasahara, Kenlo Nishida is a Environmental Science article available to read on EtoBox.

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Leaf optical properties (reflectance and transmittance spectra of a single leaf) are the key to interpreting remote sensing data regarding the structure and functions of vegetation canopies. These properties are determined by leaf biochemical and anatomical traits, which change seasonally in deciduous species. To reveal the speciesspecific seasonal patterns in leaf optical properties and their relationship to chlorophyll content and/or mesophyll structure in deciduous trees, we examined these mechanistic relationships in a pioneer species, Betula ermanii, and in sunlit and shade leaves of a late-successional species, Quercus crispula, during their seasonal development. Leaf optical properties were measured from leaf emergence to leaf fall in four years. After leaf unfolding, reflectance in the photosynthetically active radiation (PAR) region decreased gradually, while transmittance dropped rapidly. Both reflectance and transmittance increased before leaf fall. In the near-infrared (NIR) region, reflectance increased and transmittance decreased during the development period. Values of parameter N (the number of compact layers within a leaf in PROSPECT-5 model) in young leaves was ve

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Author

Noda, Hibiki M.; Muraoka, Hiroyuki; Nasahara, Kenlo Nishida

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0168-1923)

Published

2020

Language

EN

Field

Environmental Science (Physical Sciences)