中国激光, 2020, 47 (4): 0404001, 网络出版: 2020-04-08  

基于毛竹冠层LiDAR点云密度测算其蓄积量 下载: 893次

Estimation of Accumulation Amount of Phyllostachys Pubescens Based on LiDAR Point Cloud Density of Canopy
作者单位
1 浙江农林大学环境与资源学院, 浙江 杭州 311300
2 同济大学测绘与地理信息学院, 上海 200092
摘要
毛竹林资源具有高效固碳能力,对全球碳平衡的贡献和碳交易的经济效益使其受到社会广泛关注。由于毛竹林冠层结构复杂和郁闭度高,传统测量手段无法精确测算其蓄积量。基于此,利用三维激光扫描仪获得毛竹冠层的LiDAR点云数据,尝试通过点云密度来估算其蓄积量。研究结果表明:毛竹冠层蓄积量与其竹竿、竹枝的点云密度之间存在一定的数学模型;通过样本检验,毛竹冠层内部竹竿与枝条的模型精度分别可达95.53%和91.36%。
Abstract
Bamboo resources have efficient carbon-sequestration capabilities, and their economic contributions to global carbon balance and carbon trading have attracted widespread attention. However, because of the complexity and the high canopy density of bamboo canopy structure, traditional measurement methods cannot be used to precisely measure the accumulation amount. Therefore, LiDAR point cloud data of Phyllostachys pubescens canopy are obtained using three-dimensional laser scanner to estimate the accumulation amount by the point cloud density. Experimental results show that a mathematical relation exists between the accumulation amount of the bamboo canopy and the point cloud density of bamboo poles and branches. In a sample test, the model accuracy of the accumulation amount of the bamboo pole and branches in the canopy reached 95.53% and 91.36%, respectively.

苏德添, 伍琳琳, 章范怡, 徐文兵. 基于毛竹冠层LiDAR点云密度测算其蓄积量[J]. 中国激光, 2020, 47(4): 0404001. Su Detian, Wu Linlin, Zhang Fanyi, Xu Wenbing. Estimation of Accumulation Amount of Phyllostachys Pubescens Based on LiDAR Point Cloud Density of Canopy[J]. Chinese Journal of Lasers, 2020, 47(4): 0404001.

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