[H-TT30] GEOMORPHOLOGICAL APPLICATIONS OF HIGH-DEFINITION TOPOGRAPHY AND GEOPHYSICAL DATA IN THE ANTHROPOCENE

[HTT30-P01] 高解像度マルチスペクトルオルソ画像と落葉針葉樹の生理活性との比較

*蝦名 益仁¹、石塚 航¹ (1.地方独立行政法人北海道立総合研究機構　林業試験場)

キーワード：マルチスペクトル、UAS、生理

Recently, much attention has been focused on the study to comprehend the physiological activities of plants using multispectral data taken from UAS and to predict the growth potential or yield of plants effectively on a large scale. In particular, the development of the Phantom4Multispectral (DJI) has made it possible to collect high-resolution multispectral data with simple operations. In this study, Phantom4Multispectral was used to compare the physiological activities measured at the identical and/or post-hoc timing using Mini-PAM (WALZ) and MultispeQ (PhotosynQ)in young deciduous coniferous trees. Studied trees are three larch species; Larix kaempferi (Japanese larch), L. gmelinii, and their hybrid species. They were the progeny for genetic testing and were three years old after plantation to a site of Hokkaido Research Organization located at Mikasa city, Hokkaido. In this site, planting order was randomly designed. Apparent inter-specific difference was already observed in growth of young trees; superior growth of hybrids and inferior growth of L. gmelinii.
In this presentation, we show the results of the comparison between the high resolution multispectral orthoimages acquired by Phantom4Multispectral and the candidate physiological parameters relating the photosynthetic activity and discuss the application of multispectral data.