摘要
树冠体积在林业及其他领域得到越来越广泛的应用.该文介绍了三维激光扫描系统的组成、工作原理及工作流程;探讨了应用三维激光扫描系统,通过扫描获取单株树木的三维空间点阵数据,将树冠近似为多个圆台体,求它们的体积之和来计算树冠体积的方法.并在甘肃省小陇山林业局党川林场以油松为例进行了实验,而后对实测数据进行了精度分析,取得了较为满意的结果.研究表明,利用三维激光扫描系统测量树冠体积具有较强的实践意义和应用价值.
Tree crown volume is widely applied in forestry and other fields.This paper introduces the theory,performance,characteristics and surveying process of three dimension laser scanning and mapping system,and discusses the application of this system in measuring crown volume,which regarding a tree crown as a combination of a great many circular truncated cones. Based on the experiment in Xiaolong Mountain of Gansu Province,taking Pinus tabulaeformis as a case,the authors set up a multi-regression model and obtained comparatively satisfied results.It shows that using the three dimension laser scanning and mapping system for measuring tree crown volume is practical and applicable.
出处
《北京林业大学学报》
CAS
CSCD
北大核心
2007年第S2期61-65,共5页
Journal of Beijing Forestry University
基金
国家自然科学基金项目(90302014)
关键词
三维激光扫描系统
点云数据
树冠体积
回归分析
three dimension laser scanning and mapping system,scanning data,tree crown volume,regression analysis
