不同抚育措施对栓皮栎人工林生长的影响

Influence of Different Tending Measures on the Growth of Quercus variabilis Olgensis Plantation

以20年生栓皮栎人工林为研究对象,分别比较了抚育间伐、抚育间伐+施肥、抚育间伐+施肥+修剪3种抚育措施对栓皮栎人工林生长量的影响。结果表明:抚育间伐和施肥可明显促进栓皮栎人工林单株株高、胸径、平均冠幅、单株材积和单位面积蓄积量的增加。修枝处理可显著增加栓皮栎胸径、单位面积蓄积量,但对栓皮栎株高、冠幅及单株材积无显著影响。抚育间伐+施肥+修剪对栓皮栎人工林胸径、蓄积量影响最大,是形成栓皮栎大径材和实现较高生态效益的最佳抚育措施。

Taking 20-year-old Quercus variabilis plantation object the effects of three tending measures,tending thinning,tending thinning+fertilization,tending thinning+fertilization+pruning,on the growth of Quercus variabilis were compared.The results showed that thinning and fertilization can obviously promote the increase of individual plant height,diameter at breast height,average crown width,individual plant volume and volume per unit area of Quercus variabilis.Pruning treatment can significantly increase the diameter at breast height and the volume per unit area,but has no significant effect on the plant height,crown width and volume.Tending thinning+fertilization+pruning has the greatest impact on the diameter and volume of Quercus variabilis.It is the best tending measure to form large-diameter and achieve higher ecological benefits.