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林业资源管理 ›› 2017›› Issue (2): 131-138.doi: 10.13466/j.cnki.lyzygl.2017.02.022

• 研究简报 • 上一篇    下一篇

基于车载激光点云的行道树固碳量估算研究

赵颖怡(), 胡庆武()   

  1. 武汉大学 遥感信息工程学院,武汉 430079
  • 收稿日期:2017-01-16 修回日期:2017-04-21 出版日期:2017-04-28 发布日期:2020-10-10
  • 通讯作者: 胡庆武
  • 作者简介:赵颖怡(1994-),女,湖南长沙人,在读硕士,主要从事激光点云数据方面的研究工作。Email: kelsey_zhao@qq.com
  • 基金资助:
    地理国情监测国家测绘地理信息局开放基金项目资助(2015NGCM ZD02);国家自然科学基金项目资助(41271452)

Carbon Sequestration Estimation of Roadside Trees Based on Vehicle-borne Laser Point Cloud

ZHAO Yingyi(), HU Qingwu()   

  1. School of Remote Sensing and Information Engineering,Wuhan University,Wuhan 430079,China
  • Received:2017-01-16 Revised:2017-04-21 Online:2017-04-28 Published:2020-10-10
  • Contact: HU Qingwu

摘要:

不断发展的城市道路交通系统对城市道路生态环境提出了更高的要求,行道树的生态效益开始受到广泛的关注。行道树的固碳量是衡量行道树生态效益的标准之一,针对传统固碳量估算方法成本高、计算效率较低等问题,提出了一种利用车载激光点云数据估算行道树固碳量的方法。通过该方法,对单株行道树的车载激光点云数据进行处理分析,获得了行道树的树高、冠幅、胸径,再结合适当的计算模型,对行道树的固碳量进行估算,可比较不同树种固碳量的相对大小。该方法进一步扩大了车载激光点云数据的应用范围,提高了行道树固碳量的估算效率,为城市生态环境建设、绿化管理提供了新的技术。

关键词: 车载激光点云, 行道树, 几何参数, 固碳量

Abstract:

Continuous development of urban road traffic system requires higher standards of road ecological environment. Ecological benefits of roadside trees are getting more attention. Carbon sequestration is a measurement of roadside trees’ ecological benefits. The traditional method of estimating carbon sequestration is costly and inefficient. In order to solve above problems,a method using vehicle-borne laser point cloud data to estimate the carbon sequestration of roadside trees is proposed in this paper. The method can calculate the geometric parameters of a roadside tree,including tree height,crown diameter,diameter at breast height,by processing and analyzing point cloud data of an individual tree. Combining the calculated geometric parameters and an appropriate carbon sequestration calculation model,the estimated single tree’s carbon sequestration can be calculated. The proposed method can help enlarge application range of vehicle-borne laser point cloud data,improve the efficiency of estimating carbon sequestration,construct urban ecological environment and manage landscape.

Key words: vehicle-borne laser point cloud, roadside trees, geometric parameters, carbon sequestration

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