基于抽样技术的树木叶片数的估算——以樟树为例

本文基于抽样技术和回归分析,结合一些容易观测的樟树的样本信息,包括樟树的高度、冠幅、胸径,和第一、二级枝条数量等信息,实现了樟树叶片数量的快速测算。结果表明,一棵7~9米高的樟树的叶片数量在11000至24000个单位左右,并且主要与樟树高度和第二级树枝数目有关。该模型估计误差较小,稳健性良好,具有一定的实际应用与推广价值。

This article is based on sampling technology and regression method, combined with some easy observation of the camphor tree sample information, including height, crown amplitude, DBH, and the information such as first, secondary branch number, has realized the fast measurement of camphor tree leaf number. Results show that a 7-9 meters high camphor tree has leaf numbers around 11000 to 24000, and mainly related with tree height and number of secondary branches. The model estimation error is smaller, the robustness is good, and it has certain practical application and oooularizatiou value.