Leaf reflectance variation along a vertical crown gradient of two deciduous tree species in a Belgian industrial habitat
2015
Khavaninzadeh, Ali Reza | Veroustraete, Frank | Van Wittenberghe, Shari | Verrelst, Jochem | Samson, Roeland
The reflectometry of leaf asymmetry is a novel approach in the bio-monitoring of tree health in urban or industrial habitats. Leaf asymmetry responds to the degree of environmental pollution and reflects structural changes in a leaf due to environmental pollution. This paper describes the boundary conditions to scale up from leaf to canopy level reflectance, by describing the variability of adaxial and abaxial leaf reflectance, hence leaf asymmetry, along the crown height gradients of two tree species. Our findings open a research pathway towards bio-monitoring based on the airborne remote sensing of tree canopies and their leaf asymmetric properties.
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