Yukihiro Morimoto

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We evaluated the effectiveness of integrating discrete return light detection and ranging (LiDAR) data with high spatial resolution near-infrared digital imagery for object-based classification of land cover types and dominant tree species. In particular we adopted LiDAR ratio features based on pulse attributes that have not been used in past studies.(More)
Radiation in nature so called daylight dominates only the small region in all wavelengths. UV-ray is located at higher energy region than that of daylight and induces some reactions, which is caused by an act as energetic particles. UV lamps with specific wavelength are controllable for selected reaction in the limited area and the time. They are tried in(More)
In this study, we evaluated methods for reliably estimating leaf area index (LAI) and gap fraction in two different types of broad-leaved forests by the use of airborne light detection and ranging (LiDAR) data. We evaluated 13 estimation variables related to laser height, laser penetration rate, and laser point attributes that were derived from LiDAR(More)
Vertical structure is important for understanding forest environment, yet difficult to characterize, especially in temperate heterogeneous forests where the structure is complex. This study used data from a small-footprint airborne laser scanning (ALS) to estimate vegetation coverage in four stratum ranges in a warm temperate forest in Japan: >12 m, 8-12 m,(More)
We dedicate this special feature to the forerunners of urban vegetation science: Foreword The loss of biodiversity, the impact of climate change, and the growth of the world's urban population, the main challenges of this century for life on earth, are all strongly interconnected. The Tenth Conference of the Parties of the Convention on Biological Diversity(More)
Habitat fragmentation is likely to have deleterious genetic consequences for plant populations. Although the genetic effects of fragmentation in plants have been investigated in various landscapes, such studies are scarce in urban landscapes where forests tend to be fragmented and have a complex internal structure. This study aimed to determine the factors,(More)
Research on change in land use and landscape pattern is the foundation for studies exploring natural and cultural landscape of a region. This study used GIS software and utilized topographic maps to examine the changes that occurred in the Oguraike floodplain, during the time points of 1888, 1909, 1961, and 2002. The Oguraike floodplain, which was dominated(More)