摘要
利用明溪县坑甲自然保护区的闽楠天然林样地调查数据,对其林分胸径、树高、冠幅大小比数进行研究。研究结果得出:在该保护区内,闽楠天然林林分中胸径大小比数、树高大小比数及冠幅大小比数的分化程度基本一致。但其林分大小比数在胸径和冠幅上主要呈现中庸状态,其曲线均为中间高两边低的非对称山状曲线,而在树高上则呈现劣势状态,其曲线呈现偏左的非对称抛物线。在反应相邻木之间的生长优势度上,胸径和冠幅之间的一致性比胸径和树高、树高和冠幅的一致性好。研究明溪坑甲自然保护区的闽楠天然林林分大小比数,对合理经营该保护区闽楠天然林林分的空间结构,保护和利用其森林资源有着重要意义。
Based on the sample-plot survey data in Phoebe boumei natural forest at Kengjia natural reserve in Mingxi,its stand neighborhood comparison on DBH, tree height and crown width were studied. The results showed that： at this reserve, the differentiated degree of neighborhood comparison on DBH, tree height and crown width on Phoebe boumei natural forest is basically consistent. But the neighborhood comparison on DBH and crown width presents a state of the doctrine of the mean. The curve presents an asymmetric montiform curve that the middle is higher than those of the sides,but it presents a bad state on tree high, the curve presents an asymmetric left curve. On the reaction of adjacent trees on coverage, the consistency between DBH and crown width is better than DBH and tree height or tree height and crown width.Studies on the neighborhood comparison of Phoebe boumei natural forest at Kengjia natural reserve in Mingxi has great significance in managing its space structure, protecting and utilizing its forest resources
出处
《三明学院学报》
2016年第2期21-26,共6页
Journal of Sanming University
基金
福建省自然科学基金项目(B0010019)
关键词
闽楠
大小比数
胸径
树高
冠幅
明溪
Phoebe boumei
neighborhood comparison
DBH
tree heigh
crown width
Mingxi
