不同修剪强度对樟树生长的影响

通过完全随机试验,分析了不同的修剪强度(a处理为修剪10cm;b处理为修剪20cm;c处理为修剪30cm;d处理为截干)对樟树生长的影响。结果表明,樟树树高的年平均生长量为d处理>b处理>c处理>a处理>CK,说明修剪对樟树树高的生长有明显的促进作用;冠幅年平均生长量也呈现出正相关的趋势,d处理>c处理>a处理>CK>b处理;而各处理对地径的影响没有呈现出明显的规律性。不同的修剪强度对樟树叶重和枝重的增加均有促进作用,并呈现正相关,且a处理

Effect of different pruning intensity on camphor tree growth

Completely randomized design was used to observe the pruning intensity (a-pruning 10 cm, b-pruning 20 cm, c-pruning 30 cm and stem-cut) on camphor trees growth. The results showed that different pruning intensity treatments had promotive effect on the camphor tree height annual growth. The tree height increment of the d>b>c>c>CK proved that pruning played a clear role in promoting camphor tree′s height increment. The crown width growth was also showing a trend of positive correlation, d>c>b>CK>b. While the impact of pruning treatments on camphor trees ground diameter did not showing regularity. Furthermore different pruning treatments could increase leaf and branch growth, and showed a positive correlation, the leaf weight of pruning a