闽楠林冠下造林与裸地造林效果研究分析

Analysis of the Afforestation and Reforestation Effect under the Canopy of Phoebe bournei

为研究2种地类条件下闽楠造林的效果及其制约因素,以江西永新县七溪岭林场裸地和林冠下栽植1年生闽楠轻基质容器苗为研究对象,分别设立标准地进行分析2种林地条件下的幼龄林时期闽楠的生长情况及环境因素对其作用;结果显示2种森林地类条件下,造林效果差异显著;林冠下栽植闽楠树高生长有优势,但其直径生长量和生物总量明显不如裸地下栽植的闽楠。因此,裸地栽植闽楠容器苗具有显著的培育优势,光照是闽楠生长的制约因素。

In order to study the Phoebe bournei afforestation effect and its restrictive factors under 2 kinds of site conditions, taking the 1 year old container seedlings of P. bournei planted under bare land and forest canopy of Qixiling forest farm of Yongxin county, Jiangxi province as the research object, the standard plots were established respectively to analyze the growth of P. bournei at young forest period under 2 kinds of site conditions and role of environmental factors on the growth;Results showed that under the 2 kinds of forest land conditions, afforestation effect was significantly; tree height growth of P. bournei planted under the canopy has advantage, but its diameter growth quantity and total biological quantity were less than bare that planted at bare land. So container seedlings of P. bournei planted at bare land has obvious cultivation advantages, light is the restricting factors of P. bournei growth.