The Defoliation Pattern of the Typical Broad-leaved Tree Using the Time Series Airborne Laser Scanner Data

Abstract

In this study, we tried to grasp the defoliation pattern of the typical broad-leaved tree which is dominant in Tama Forest Science Garden. We used the time-series crown height data based on the airborne laser scanner data obtained during the defoliation period. As a result, it was proven that Prunus yedoensis, Magnolia obovata and Juglans mandshurica had quickly shed leaves in the early fall. On the other hand, the time in which Zelkova serrata, Quercus serrata and Quercus acutissima shed leaves was late, and there was the different defoliation pattern. In the future, the improvement of the tree species identification technique which used the seasonal leaf color change information jointly with defoliation pattern information is considered from these results.