杉木连栽地福建柏造林效果初报

The afforestation effects of Fokienia hodginsii afforest in continuous planted soil of Cunninghamia lanceolata

在不同地类杉木连栽地营建福建柏、杉木等树种块状混交林7处，面积67．8hm^2。经5-6年生幼林期调查，福建柏材积年平生长量在山区与杉木基本持平，在半山区和丘陵区大于杉木。福建柏材积年平生长量在山区杉木连栽地存在海拔高差异，其材积年平均生长量600m〉700m〉800m。在海拔600m杉木连栽地营建福建柏与杉木混交林，两个树种生产力均较高。

There were seven block mix forest of 67.8 hm^2 with Fokienia hodginsii and Cunninghamia lanceolata planted in the different soil styles of continuous planted soil of Cunninghamia lanceolata. According to the investment of five to six years old seedling of Fokienia hodginsli, the average annual volume increment of it was close to Cunninghamia lanceolata in mountain area,and more than it in the half mountain and hill area, There was obvious difference in the average annual volume increment of Fokienia hodginsii in continuous planted soil of Cunninghamia lanceolata in different altitude, and the average annual volume were 600 m 〉 700 m 〉 800 m. The high productivity effect were higher by afforested mixed planted with Fokienia hodginsii and Cunninghamia lanceolata in 600 m altitude.