Growing Situation of Afforested Trees and Damage to Lower-Story Trees Caused by Felling in Multi-Storied Forest Management in Peninsular Malaysia
| Autor: | Isao Sawaguchi, Katsumi Toyokawa, Osamu Ohkawabata, Kouichi Ichihara, Shunji Shimizu |
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| Rok vydání: | 1997 |
| Předmět: |
Agroforestry
Logging Forest management Sowing Forestry 04 agricultural and veterinary sciences 010501 environmental sciences Felling 01 natural sciences Plant ecology Geography 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Afforestation 0105 earth and related environmental sciences |
| Zdroj: | Journal of Forest Research. 2:15-19 |
| ISSN: | 1610-7403 1341-6979 |
| DOI: | 10.1007/bf02348257 |
| Popis: | The growing condition of afforestation trees and damage to lower-story trees caused by felling and hauling of upper-story trees in a multi-storied forest in Peninsular Malaysia was surveyed. Seventy months have passed since the planting ofAcacia mangium upperstory trees, which have grown 233 m3/ha in volume. The growth ofShorea leprosula thirty-five months after planting of lower-story trees have reached 5.54 m in height. However, as the ratio of height to basal diameter exceeds 100:1, trees are tapering to a considerable degree. A backhoe was installed in order to fell the upper-story trees. From the results of logging, the damage ratio estimation of the lower-story trees was simulated by using the Monte Carlo method. The damage ratio differed considerably depending on planting patterns, height of upper-story trees and felling skills. The results of this survey proved that the felling and hauling of upper-story trees would be technically feasible in the future, except when one row upper-story trees and one row lower-story trees method were employed. |
| Databáze: | OpenAIRE |
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