Lecturer ：Dr. Motomu Toda
Profile
2001-2002 Postdoctoral fellow, Forest Research and Management Organization (Ibaraki, Japan)
2003-2007 Postdoctoral fellow (Center of Excellence Project), Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan
2008-2009 Research associate, Pan-Okhotsk Research Center, Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan
2010-2011 Assistant Professor (Fixed-term), Graduate School of Environmental Science, Hokkaido University, Sapporo, Japan
2012-2018 Lecturer (full-time), Graduate School of Biosphere Science, Hiroshima University, Japan
2019-present Lecturer (full-time), Graduate School of Integrated Sciences for Life, Hiroshima University, Japan
Research of interests
Energy and carbon exchange between atmosphere and forest ecosystems, Micrometeorology, Bio-climatorological and ecological dynamics in terrestrial ecosystems, Ecosystem modelling, Degital image processing for canopy structure dynamics
Affiliated academic society
American Geophysical Union (AGU)
Approaches
(a) Field observation (Data monitoring from meteorological and biogeochemical approaches)
(b) Numerical works (Modeling, Data model fusion)
(c) Data analysis (Integrated analysis of flux and inventory data, Digital image processing)
Examples of field studies:
—Digital image analysis to detect impacts of climate extremes on ecosystem canopy recovery in a deciduous forest in northern Hokkaido (Toda et al. (2018) published in Canadian Journal of Forest Research)
—Extreme typhoon-mimic experiment
In the mimic experiment, we assessed the recovery process of leaf photosynthesis, morphological and physiological traits following the defoliating disturbance (Toda et al., 2018, Trees).
—Observational analysis of leaf inclination angles of dominant tree species and uncertainty of stand-level LAI in a mixed forest in Japan (Toda et al. (2022), Agricultural and forest meteorology)
—A simulation analysis to evaluate the effects of canopy structural complexity on gross primary productivity across forest biomes (Toda et al. 2023)
Remarks
—This is a joint research with Prof. Alexander Knohl (Bioclimatology laboratory, Georg-August University of Goettingen, Germany).
Peer reviewed papers published in recent years (All were written in English only)
Toda, M., Yokozawa, M., Sumida, A., Watanabe, T., Hara, T. (2009) Foliage profiles of individual trees determine competition, self-thinning, biomass and NPP of a Cryptomeria japonica forest stand: A simulation study based on a stand-scale process-based forest model. Ecological Modelling 220: 2272-2280.
Sugita, M., Kato, H., Kotani, A., Toda, M. (2009): How universal is the C-function in the bulk ABL similarity approach to estimate surface sensible heat flux? Water Resources Research 45, W07418, do: .1029/2008WR007390.
Haraguchi, A., Li, B., Yokozawa, M., Toda, M., Hara, T. (2009): Effects of soil nutrients on competition and morphological plasticity in an Impatiens balsamina population. Icfai University Journal of Environmental Sciences 3: 7-23.
Toda, M., Yokozawa, M., Emori, S., Hara, T. (2010) More asymmetric tree competition brings about more evapotranspiration and less runoff from the forest ecosystems: A simulation study. Ecological Modelling 221: 2887-2898.
Toda, M., Takata, K., Nishimura, N., Yamada, M., Miki, N., Nakai, T., Kodama, Y., Uemura, S., Watanabe, T., Sumida, A., Hara, T. (2011) Simulating seasonal and inter-annual variations in energy and carbon exchanges and forest dynamics using a process-based atmosphere-vegetation dynamics model. Ecological Research, 26: 105-121.
Toda, M., Kolari, P., Nakai, T., Kodama, Y., Shibata, H., Yoshida, T., Uemura, S., Sumida, A., Kato, K., Ono, K., Hara, T. (2011) Photosynthetic recovery of foliage after wind disturbance activates ecosystem CO2 uptake in cool-temperate forest of northern Japan. Journal of Geophysical Research-Biogeosciences, doi:10/1029/2010JG001611.
Kim, W and the other 37 members (2015) Fluxpro as a realtime monitoring and surveilling system for eddy covariance flux measurement. Journal of Agricultural Meteorology. 71: 32-50.
Wang, X., Sasaki, A., Toda, M., Nakatsubo, T. (2016) Changes in soil microbial community and activity in warm temperate forests invaded by moso bamboo (Phyllostachys pubescens). Journal of Forest Research, 21: 235-243.
Toda, M., Richardson, A.D. (2018) Estimation of plant area index and phenological transition dates from digital repeat photography and radiometric approaches in a hardwood forest in the Northeastern United States. Agricultural and Forest Meteorology, 249: 457-466.
Toda, M., Nakai, T., Kodama, Y., Hara, T. (2018) Using digital cover photography to track the canopy recovery process following a typhoon disturbance in a cool-temperate deciduous forest. Canadian Journal of Forest Research, 48: 740-748. Selected as an Editors’ Choice
Toda M., Fukuzawa, K., Nakamura M., Miyata R., Wang X., Doi K., Tabata A., Shibata H., Yoshida T., Hara T. (2018) Photosynthetically distinct responses of an early-successional tree, Betula ermanii, following a defoliating disturbance: Observational results of a manipulated typhoon-mimic experiment. Trees, 32:1789-1799.
Toda M., Doi, K., Ishihara I.M., Azuma A.W., Yokozawa, M. (2020) A Bayesian framework to evaluate parameter and predictive inference of a simple soil respiration model in a cool-temperate forest in western Japan. Ecological Modelling, 418C.
Toda M., Doi, K., Ishihara, I.M., Hara, T. (2022) Determination of species-specific leaf angle distribution and plant area index in a cool-temperate mixed forest from UAV and upward-pointing digital photography. Agricultural and Forest Meteorology, 325, 109151.
Toda,M., Knohl, A., Luyssaert, S., Hara, T., (2023) Simulated effects of canopy structural complexity on forest productivity. Forest Ecology and Management, 538, 120978.
Tool
MINoSGI model code
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Email: todam (at) hiroshima-u.ac.jp
Graduate School of Integrated Science for Life, Hiroshima University, Higashi-Hiroshima, Japan, 739-8521
Please contact me if you have interests on our laboratory.