摘要
应用样木资料,采用多方程分析对比法建立胸径与地径及树高与地径的相关数学模型,所建立的模型平均相对误差低于2%,预估效果理想,从而为通过地径的测定,应用二元立木材积表测定湿地松人工林被伐木材积提供了科学依据,在实践上有应用价值。
by using the materials of sample trees, on the basis of multi - equation comparative analysis method, it has been established the related mathematical models for the chest diameter and ground diameter, the tree height and ground diameter. The average relative errors for the established models are less than 2% with the ideal prediction effect. Therefore, it has been provided the scientific base with the application value on practice for the determination of lumbering volume of Slash Pine （Pinus elliotti. ） plantation by using the Binary Tree Volume Table.
出处
《亚热带水土保持》
2009年第1期22-23,70,共3页
Subtropical Soil and Water Conservation
关键词
湿地松
地径
胸径
树高
模型
Pinus elliottii. , ground diameter, chest diameter, tree height, model
