摘要
为了在森林资源调查中能够方便快捷地估测出具有较高精度的林分蓄积量,以西洞庭湖区96块林分样地资料为基础,建立该区杉木林分相对树高曲线模型。经假设检验(t检验)得该模型估计精度较理想,可达到近似实测树高曲线法的水平,既避免了较大地域范围因形高变异而引起估测立木材积的较大偏差问题,又降低了实际工作中的技术难度和工作量。
In order to obtain a high-precision estimation of stand volume conveniently and quickly in forest resources investigation,based on the data of 96 plots of Chinese fir stand in west Dongting lake region,the relative tree height curve model for the region was built.The experimental results with hypothesis testing（t-test） show that the accuracy of volume estimate of the model was relatively ideal,and the accuracy was almost as high as that by using tree height curve.The obvious deviation caused by form height variation was avoided when estimating the tree volume in a large regional scope,at the same time,the technical difficulty and the workload in field was reduced in the practical work.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2012年第9期47-50,共4页
Journal of Central South University of Forestry & Technology
基金
国家自然科学基金(30972362)
中南林业科技大学研究生科技创新基金资助项目(2010sx04)
关键词
西洞庭湖区
杉木
相对树高曲线模型
假设检验
west Dongting lake region
Chinese fir
curve model of relative tree height
hypothesis testing
