不同修枝强度对侧柏、油松人工林林内景观美景度的影响

Effects of Pruning Intensity on In-forest Landscape of Platycladus orientalis and Pinus tabulaeformis Plantations

为研究油松、侧柏不同强度的修枝试验对林内景观变化的影响,修去侧柏1/4、1/3或1/2树高以下的所有枝条,修去油松1/3、1/2或1/2树高以下的所有枝条。结果表明,随着修枝强度的加大,侧柏、油松林内景观的美景度增高。侧柏、油松修枝高度控制在1/2树高时,2树种林内美景度最高;同等修枝高度下,油松林内景观美景度要远大于侧柏林。

The influence of pruning intensity on in-forest landscape in Platycladus orientalis and Pinus tabulaeformis plantations was studied.All the branches above the ground up to the tree height of 1/4,1/3 and 1/2 for P.orientalis and 1/3,1/2 and over 1/2 for P.tabulaeformis,respectively were cut.The results showed that within the pruning intensities designed,the scenic beauty of in-forest landscape of the two plantations increased with the increase of pruning intensity,both exhibited their highest scenic beauty at the pruning intensity of 1/2.The scenic beauty of P.orientalis was better than that of P.tabulaeformis with the same pruning height.