摘要
本文介绍利用象片量测树高的一种新方法。通过建立数字地面模型,解决林地上树根被灌木遮蔽的问题,从而提高了树高量测精度。
This paper presents a new method of measuring the height of trees through aerophotos. Based on the area unit centered at the root of a tree, a Digital Height Model (DHM) can be established by using 'Moving Tilted Plane' to fit the terrain surface. With the DHM, the problem of invisibility of the root of a tree covered by shrubbery or bushes can be solved. As a result of an experiment, the measuring accuracy has been improved and the mean square deviation of 1.5 (m) for measuring the height of tree has been reached.
出处
《林业科学研究》
CSCD
北大核心
1991年第1期74-78,共5页
Forest Research
基金
林业部资源司下达课题"大比例尺航片量测试验"
