油松风景林合理密度研究——以北京西山为例

Study on Rational Density of Planted Pinus Tabulaeformis Scenic Forest:A Case Study Xishan in Beijing

林分密度是林分生长特征的主要控制因素,文章以北京油松风景林为例,研究了四种不同林分密度下的三个形态指标特征变化。研究结果表明,树高年均生长量、胸径年均生长量、冠幅年均生长量与林分密度呈负相关性;油松人工风景林密度控制在700-1000株/hm2林木个体形态指标最好。

To determine a reasonable density for cultivating and managing forests.This paper discussed Pinus tabulaeformis scenic forest in Beijing as a case study three individual fore characteristics indicators under four different stand densities change are as follows：the negative relationships were found between stand density and average increment of tree height,average increment of diameter at breast height,average increment of crown;Panted Pinus tabulaeformis scenic forest should be controlled at a density between 700 and 1000 individuals per hectare.Which stand individual form the best.