详细信息
基于机载LiDAR数据的林分平均高及郁闭度反演 被引量:26
Inversion of Forest Height and Canopy Closure Using Airborne LiDAR Data
文献类型:期刊文献
中文题名:基于机载LiDAR数据的林分平均高及郁闭度反演
英文题名:Inversion of Forest Height and Canopy Closure Using Airborne LiDAR Data
作者:穆喜云[1] 张秋良[1] 刘清旺[2] 庞勇[2] 胡凯龙[3]
第一作者:穆喜云
机构:[1]内蒙古农业大学;[2]中国林业科学研究院资源信息研究所;[3]中国矿业大学
年份:2015
卷号:43
期号:9
起止页码:84-89
中文期刊名:东北林业大学学报
外文期刊名:Journal of Northeast Forestry University
收录:CSTPCD;;北大核心:【北大核心2014】;CSCD:【CSCD_E2015_2016】;
基金:林业公益性行业科研专项(201204101-02);国家高技术研究发展计划("863"计划)子课题(2013AA12A302);国家科技支撑计划子课题(2012BAH34B0203);国家自然科学基金青年科学基金项目(41201334)
语种:中文
中文关键词:激光雷达;点云;树高;郁闭度;冠层高度模型;反演
外文关键词:LiDAR ; Cloud point ; Tree height ; Canopy closure ; Canopy height model ; Inversion
分类号:S771.8
摘要:以内蒙古大兴安岭森林生态系统国家野外科学观测研究站为研究区,通过2012年8月至9月获取的机载激光雷达数据与地面同步调查样地数据,构建林分平均高反演模型和林分内郁闭度反演模型。结果表明:混交林、阔叶林和针叶林的林分平均高估测精度依次为95.66%、94.11%和90.71%,林分郁闭度估测精度依次为92.73%、56.62%和85.19%。不同森林类型的林分平均高与郁闭度反演精度存在显著性差异。
In the Daxing' an Mountains in Inner Mongolia State Forest Ecosystem Station, with the Airborne LiDAR data and field measured plots data in August to September in 2012, we built the forest height model and forest canopy closure mod- el, respectively. The forest height accuracies in mixed forests, broad-leaved and coniferous forest were 95.66%, 94.11% and 90.71%, respectively, and the forest canopy closure accuracies were 92.73%, 56.62% and 85.19%, respectively. There was significant difference in forest height and forest canopy closure inversion on different forest types.
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