Abstract
Based on mini-tree models,the authors constructed forest stands with different distributions to measure bidirectional reflectance factor( BRF) by a mini goniometer. The results show that the observed BRF of simulated forest canopies is reasonable and inter-compared with a three-dimensional BRF model. The reflectance in different view directions indicates a typical "bowl"shape in the near-infrared band,with significant "hot spot"effects in solar principal plane. The study has confirmed that mini-tree models can be applied to the research on forest BRF. The comparisons between different spatial distributions and terrain conditions of tree models demonstrate that forest density and slope have certain effects on forest BRF. Therefore,their features and regularity can contribute to the inversion of the land surface parameters through modeling.
Published Version
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