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在福建省永春碧卿国有林场杉木采伐迹地进行红豆树与杉木萌芽条4种混交比例(4豆∶1杉、3豆∶1杉、2豆∶1杉、1豆∶1杉)造林试验。结果表明:6年生红豆树平均胸径、树高生长量在不同混交比例间差异达极显著水平,6年生杉木平均胸径、树高生长量在不同混交比例间差异不显著,6年生杉木萌芽林与红豆树已经产生较为明显的生长环境空间的竞争;不同混交比例对红豆树主干分枝数、高径比、枝下高与全高比等干形生长指标的影响微弱。
Four kinds of mixed ratio (4 beans: 1 fir, 3 beans: 1 fir, 2 beans: 1 fir, 1 bean: 1 fir) afforestation test were conducted on the deciduous land of Chinese fir forest in Yongchun, Fujian Province. The results showed that the average DBH and tree height growth of 6-year-old red bean were significantly different among the different combinations. The average DBH and tree height growth of 6-year-old Chinese fir were not significantly different among the different combinations. The 6-year-old Chinese fir sprout The competition of space environment for the growth of red bean has been more obvious. The effects of different mixed proportion on the dry growth index of main branch number, height-diameter ratio, height of branches and full height ratio are weak.