摘要
树木高度的测量工作是林业生产、科研、教学和森林调查的一项重要工作,是评价立地质量和林木生长状况的重要依据.该文介绍了三角高程测定树高的方法,说明了测量原理及测量过程,推导出三角高程测量树高的通用公式,并根据林区的地势和地形条件的不同,提出相应的水平距离的测定方法,通过对实验数据进行分析阐明三角高程测量树高的精度.得出结论:三角高程测量树高的方法精度可以满足林业上测树的精度要求,而且该方法简单、方便、实用,值得在森林调查中广泛应用.
Survey of tree height is an important task of production,scientific research and education,and investigation in forest,as well as an important foundation in evaluating the quality and the growing condition of forest.This paper presents a method of tree height survey by trigonometric leveling,explains the principles and processes of the survey,derives its general formula.According to the different conditions of the topography and terrain in forests,the corresponding method of measuring the horizontal distance is put forward,and its precision by analyzing data theoretically and practically is explained.The conclusion is that the tree height survey by trigonometric leveling is precise enough to meet the precision of tree height measurement in forests,and it is simple,practical,convenient,and worth using in the forestry investigation.
出处
《北京林业大学学报》
CAS
CSCD
北大核心
2007年第S2期31-35,共5页
Journal of Beijing Forestry University
基金
山东省重大科技专项(2006GG1108097-21)
关键词
三角高程
树高测量
精度分析
trigonometric leveling,tree height survey,precision analysis
