国土资源遥感Issue(4)：56-62,7.DOI:10.6046/gtzyyg.2014.04.10
基于微缩模型的森林BRF测量
Measurement of forest BRF based on mini-tree models
摘要
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.关键词
微缩模型/双向反射率/森林/热点效应Key words
mini-tree models/bidirectional reflectance/forest/hotspot effect分类
农业科技引用本文复制引用
黄华国,王诗瑞..基于微缩模型的森林BRF测量[J].国土资源遥感,2014,(4):56-62,7.基金项目
国家林业局林业公益性科研专项项目(编号:201104040-2)和国家自然科学基金项目(编号:41171278)共同资助。 （编号:201104040-2）
