不同立地条件对几种造林树种生产量的影响研究

Effects Of Different Site Strips On The Yield Of Several Tree Species

本文通过广西国有林场常见的三个主要造林树种在不同立地条件下,对20年生马尾松、杉木及红椎林分在不同坡位条件下的树高、胸径及蓄积量的研究,结果表明,在相同的造林措施下,立地条件越好,造林效果越好。下坡蓄积量总是大于上坡和中坡;下坡蓄积量最大的是杉木,中坡蓄积量最大的是马尾松,上坡蓄积量最大的是红椎。

Based on analysis on the three common main afforestation species in Guangxi state -owned forest in dif- ferent site conditions, the 20 year old pine fir and c. hystrix stands in different slope position under the condition of tree height, DBH and volume of research results show that under the same condition under Afforestation Measures, the better, the better the effect of afforestation. The amount of downslope accumulation is always greater than that of uphill and middle breaking; the largest amount of the decline is the fir; the largest amount of the middle slope is the Masson pine, and the largest amount of the ascent is the red vertebra.