Comparison of Absorbed and Intercepted Fractions of PAR for Individual Trees Based on Radiative Transfer Model Simulations

• Published in: Remote sensing (Basel, Switzerland) Vol. 13; no. 6; p. 1069
• Main Authors: Wojnowski, Wojciech, Wei, Shanshan, Li, Wenjuan, Yin, Tiangang, Li, Xian-Xiang, Ow, Genevieve Lai Fern, Mohd Yusof, Mohamed Lokman, Whittle, Andrew J.
• Format: Journal Article
• Language: English
• Published: MDPI 01.03.2021; MDPI AG
• Subjects: chlorophyll; concrete; discrete anisotropic radiative transfer model (DART); Ecology, environment; fAPAR; fIPAR; forests; grasses; gross primary productivity; illumination; leaves; Life Sciences; light intensity; lighting; neural networks; photosynthetically active radiation; radiative transfer; tree crown; trees; tropical plants; urban background; urban individual tree; fIPAR; fAPAR; illumination; urban background; discrete anisotropic radiative transfer model (DART); urban individual tree

The fraction of absorbed photosynthetically active radiation (fAPAR) is a key parameter for estimating the gross primary production (GPP) of trees. For continuous, dense forest canopies, fAPAR, is often equated with the intercepted fraction, fIPAR. This assumption is not valid for individual trees i...