Yoichi KOBAYASHI
A Study on the Monitoring of the Forest Growth Status Using Multi-Temporal Airborne LiDAR Data
Kazuyoshi TAKAHASHI,Atsushi RIKIMARU
Monitoring of growth status of forest is static existing monitoring by one point of data. Also, there is a movement tracking by the evaluation of the change with aging data. Movement tracking can be grasped a change in the status due to external factors due to growth and human harvesting and disasters in the natural status. To implement the movement tracking by comparing aging data, ensuring compatibility between the data to be compared becomes important technical factors. In recent years, the implementation of forest measurement using the aviation LiDAR data is beginning to spread. However, the measurement objective is placed is focus on terrain measurement of forest floor. Therefore, the greater the measurement in the tree leaves little defoliation period. Monitoring the forest resources and growth status, often cause problems. In particular, when gripping the aging, the season of the measurement is different, additional analysis process to ensure compatibility of the measured phenomenon it becomes necessary.
In this study, we examined to ensure compatibility between the multi-temporal LiDAR data to be compared. In addition, from the aging of the forest, was carried out movement tracking of forest by multi-temporal data comparison. Then, whether the forest is growing in nature, were intended to examine the possibility of whether the determination was a external factors, such as logging. In addition, with regard to the determination result of compatibility and growth status, Based on the field survey and existing research article was carried out consideration of its validity.
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