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Peer Reviewed Papers

  1. Nagai S.*, Saitoh T.M.*, Kajiwara K., Yoshitake S., Honda Y. (2018) Investigation of the potential of drone observations for detection of forest disturbance caused by heavy snow damage in a Japanese cedar (Cryptomeria japonica) forest, Journal of Agricultural Meteorology, in press (*co-first author)
  2. Irina M., Awaya Y., Saitoh T.M., Muraoka H., Sasai T. (2018) Estimation of leaf area index in a mountain forest of central Japan with a 30-m spatial resolution based on landsat operational land imager imagery: an application of a simple model for seasonal monitoring, Remote Sensing, 10, 179. DOI 10.3390/rs10020179
  3. Noh N.-J., Kuribayashi M., Saitoh T.M., Muraoka H. (2017) Different responses of soil, heterotrophic and autotrophic respirations to a 4-year soil warming experiment in a cool-temperate deciduous broadleaved forest in central Japan, Agricultural and Forest Meteorology, 247, 560-570. DOI 10.1016/j.agrformet.2017.09.002
  4. Ichii K., Ueyama M., Kondo M., Saigusa N., Kim J., Alberto M.C., Ardoe J., Euskirchen E.S., Kang M., Hirano T., Joiner J., Kobayashi H., Marchesini L.B., Merbold L., Miyata A., Saitoh T.M., Takagi K., Varlagin A., Bret-Harte M.S., Kitamura K., Kosugi Y., Kotani A., Kumar K., Li S.-G., Machimura T., Matsuura Y., Mizoguchi Y., Ohta T., Mukherjee S., Yanagi Y., Yasuda Y., Zhang Y. and Zhao F. (2017) New data-driven estimation of terrestrial CO2 fluxes in Asia using a standardized database of eddy covariance measurements, remote sensing data, and support vector regression, Journal of Geophysical Research Biogeosciences, 122, 767−795, DOI 10.1002/2016JG003640
  5. Nagai S., Nasahara K.N., Yoshitake S., Saitoh T.M. (2017) Seasonality of leaf litter and leaf area index data for various tree species in a cool-temperate deciduous broad-leaved forest, Japan, 2005-2014, Ecological Research, 32, 297. DOI 10.1007/s11284-017-1452-5
  6. Kuribayashi M., Noh N.-J., Saitoh T.M., Ito A., Wakazuki Y., Muraoka H. (2017) Current and future carbon budget at Takayama site, Japan, evaluated by a regional climate model and a process-based terrestrial ecosystem model, International Journal of Biometeorology, DOI:10.1007/s00484-016-1278-9
  7. Kondo M., Saitoh T.M., Sato H., Ichii K. (2017) Comprehensive synthesis of spatial variability in carbon flux across monsoon Asian forests, Agricultural and Forest Meteorology, 232, 623-634,　DOI:10.1016/j.agrformet.2016.10.020
  8. Nagai S., Nasahara K.N., Inoue T., Saitoh T.M., Suzuki R. (2016) Review: advances in in situ and satellite phenological observations in Japan. International Journal of Biometeorology, 60, 615-627, DOI:10.1007/s00484-015-1053-3
  9. Noh N.-J., Kuribayashi M., Saitoh T.M., Nakaji T., Nakamura M., Hiura T., Muraoka H. (2016) Responses of soil, heterotrophic, and autotrophic respiration to experimental open-field soil warming in a cool-temperate deciduous forest, Ecosystems, 19, 504-520, DOI 10.1007/s10021-015-9948-8
  10. Nagai S., Inoue T., Ohtsuka T., Yoshitake S., Nasahara K.N., Saitoh T.M. (2015) Uncertainties involved in leaf fall phenology detected by digital camera. Ecological Informatics, 30, 124-132, DOI 10.1016/j.ecoinf.2015.10.005
  11. Saitoh T.M., Nagai S., Yoshino J., Kondo H., Tamagawa I., Muraoka H. (2015) Effects of canopy phenology on deciduous overstory and evergreen understory carbon budgets in a cool-temperate forest ecosystem under ongoing climate change, Ecological Research, 30, 267-277, DOI 10.1007/s11284-014-1229-z
  12. Ito A., Saitoh T.M., Sasai T. (2015) Synergies between observational and modeling studies at the Takayama site: toward a better understanding of terrestrial ecosystem processes, Ecological Research, 30, 201-210, DOI 10.1007/s11284-014-1205-7
  13. Nagai S., Saitoh T.M., Suzuki R., Nasahara K.N. (2015) Spatio-temporal distribution of the timing of start and end of growing season along vertical and horizontal gradients in Japan. International Journal of Biometeorology, 59, 47-54, doi:10.1007/s00484-014-0822-8
  14. Saitoh T.M., Nagai S., Muraoka H.（2014）Current and future prediction in forest ecosystem carbon dynamics - utilization of remote sensing -．Japanese Journal of Ecology, 64, 243-252. DOI 10.18960/seitai.64.3_243 (in Japanese)
  15. Nagai S., Yoshitake S., Inoue T., Suzuki R., Muraoka H., Nasahara K., Saitoh T.M. (2014) Year-to-year blooming phenology observation by using time-lapse digital camera images. Journal of Agricultural Meteorology, 70 (3), 163-170. DOI:10.2480/agrmet.D-13-00021
  16. Inoue T., Nagai S., Saitoh T.M., Muraoka M., Nasahara K.N., Koizumi H. (2014) Detection of the characteristics of year-to-year variations in foliage phenology among deciduous broad-leaved trees by using time-lapse digital camera images. Ecological Informatics, 22, 58-68. DOI:10.1016/j.ecoinf.2014.05.009
  17. Kuribayashi M., Noh N.J., Saitoh T.M., Tamagawa I., Wakazuki Y., Muraoka H. (2013) Comparison of Snow Water Equivalent Estimated 1 in Central Japan by High-Resolution Simulations Using Different Land-Surface Models, SOLA, 9, 148-152.
  18. Ueno K., Isono J,, Imaizumi F., Inami A., Kanai R., Suzuki K., Kobayashi H., Tamagawa I.,Saitoh T.M., Kondo H.（2013）Data archive of meteorological data created through the Japanese Alps Inter-university Cooperative Project．Journal of Geography, 122(4), 638-650, DOI:10.5026/jgeography.122.638
  19. Nagai S., Saitoh T.M., Noh N.-J., Yoon T.-K., Kobayashi H, Suzuki R., Nasahara K.N., Son Y., Muraoka H. (2013) Utility of information in photographs taken upwards from the floor of closed-canopy deciduous broadleaved and closed-canopy evergreen coniferous forests for continuous observation of canopy phenology, Ecological Informatics, 18, 10-19, DOI: 10.1016/j.ecoinf.2013.05.005.
  20. Saitoh T.M., Tamagawa I., Muraoka H., and Kondo H. (2013) An analysis of summer evapotranspiration based on multi-year observations including extreme climatic conditions over a cool-temperate evergreen coniferous forest, Takayama, Japan. Hydrological Processes, 27, 3341-3349, DOI: 10.1002/hyp.9834.
  21. Nagai S., Saitoh T.M., Kurumado K., Tamagawa I., Kobayashi H, Inoue T., Suzuki R., Gamo M., Muraoka H., Nasahara K.N. (accepted) Detection of bio-meteorological year-to-year variation by using digital canopy surface images of a deciduous broad-leaved forest. SOLA, 9, 106-110.
  22. Muraoka H., Noda H.M., Nagai N., Motohka T., Saitoh T.M., Nasahara K.N. and Saigusa N. (2012) Spectral vegetation indices as the indicator of canopy photosynthetic productivity in a deciduous broadleaf forest, Journal of Plant Ecology,6, 393-407. doi: 10.1093/jpe/rts037.
  23. Nagai S., Nakai T., Saitoh T.M., Busey R.C., Kobayashi H., Suzuki R., Muraoka H., Kim Y. (2012) Seasonal changes in camera-based indices from an open canopy black spruce forest in Alaska, and comparison with indices from a closed canopy evergreen coniferous forest in Japan. Polar Science, 7, 125-135, DOI: 10.1016/j.polar.2012.12.001
  24. Katayama A., Kume T., Komatsua H., Saitoh T.M., Ohashi M., Nakagawa M., Suzuki M., Otsuki K., Kumagai T. (2013) Carbon allocation in a Bornean tropical rainforest without dry seasons, Journal of Plant Research, 126, 505-515, DOI: 10.1007/s10265-012-0544-0
  25. Saigusa N., Li S.-G., Kwon H., Takagi K, Zhang L.-M, Ide R., Ueyama M., Asanuma J. Choi Y.-J., Chun J.H., Han S.-J., Hirano T., Hirata R., Kang M., Kato T., Kim J., Li Y.-N., Maeda T., Miyata A., Mizoguchi Y., Murayama S., Nakai Y., Ohta T., Saitoh T.M., Wang H.-M., Yu G.-R., Zhang Y.-P., Zhao F.-H. (2013) Dataset of CarboEastAsia and the uncertainties in the CO2 budget evaluation caused by different data-processing. Journal of Forest Research, 18, 41-48, DOI 10.1007/s10310-012-0378-6.
  26. Ichii K., Kondo M., Lee Y.-H., Wang S.-Q., Kim J., Ueyama M., Lim H.-J., Shi H., Suzuki T., Ito A., Ju W., Huang M., Sasai T., Asanuma J., Han S., Hirano T., Hirata R., Kato T., Kwon H., Li S.-G., Li Y.-N., Maeda T., Miyata A., Matsuura Y., Murayama S., Nakai Y., Ohta T., Saitoh T.M., Saigusa N., Takagi K., Tang Y.-H., Wang H.-M., Yu G.-R., Zhang Y.-P., Zhao F.-H. (2013) Site-level model-data synthesis of terrestrial 1 carbon fluxes in the CarboEastAsia eddy-covariance observation network: Toward future modeling efforts. Journal of Forest Research, 18, 13-20, DOI 10.1007/s10310-012-0367-9.
  27. Saitoh T.M., Nagai S., Yoshino J., Muraoka H., Saigusa N., and Tamagawa I. (2012) Functional consequences of differences in canopy phenology for the carbon budgets of two cool-temperate forest types: simulations using the NCAR/LSM model and validation using tower flux and biometric data. Eurasian Journal of Forest Research, 15(1), 19-30.
  28. Saitoh T.M., Nagai S, Saigusa N, Kobayashi H., Suzuki R., Nasahara K.N., and Muraoka H. (2012) Assessing the use of camera-based indices for characterizing canopy phenology in relation to gross primary production in a deciduous broad-leaved and an evergreen coniferous forest in Japan. Ecological Informatics., 11, 45-54, doi: 10.1016/j.ecoinf.2012.05.001.
  29. Nagai S., Saitoh T.M., Kobayashi H., Ishihara M., Suzuki R., Motohka T., Nasahara K.N. and Muraoka H. (2012) In situ examination of the relationship between various vegetation indices and canopy phenology in an evergreen coniferous forest, Japan. International Journal of Remote Sensing, 33(19), 6214-6214.
  30. Saitoh T.M., Nagai S., Noda H.M., Muraoka H. and Nasahara K.N. (2012) Examination of the extinction coefficient in the Beer-Lambert law for an accurate estimation of the forest canopy leaf area index. Forest Science and Technology, 8(2), 67-76.
  31. Watanabe N., Kojima T., Shinoda S., Ohashi K., Tamagawa I., Saitoh T.M.（2012）Observation and modeling of rainfall interception in evergreen forest and deciduous forest. Journal of Japan Society of Civil Engineers, Ser.B1 (Hydraulic engineering), 68(4), I_1759-I_1764.
  32. Nagai S, Saitoh T.M., Suzuki R., Nasahara K.N., Lee W.-K., Son T., and Muraoka H. (2011) The necessity and availability of noise-free daily satellite-observed NDVI during rapid phenological changes in terrestrial ecosystems in East Asia. Forest Science and Technology, 7(4), 174-183.
  33. Kume T., Tanaka N., Kuraji K., Komatsu H., Yoshifuji N., Saitoh T.M., Suzuki M., and Kumagai T. (2011) Ten-year evapotranspiration estimates in a Bornean tropical rainforest, Agricultural and Forest Meteorology, 151, 1183- 1192 doi:10.1016/j.agrformet.2011.04.005.
  34. Saitoh T.M., Tamagawa, I., Muraoka H., and Koizumi H. (2011) Energy balance closure over a cool temperate forest in steeply sloping topography during snowfall and snow-free periods, Journal of Agricultural Meteorology, 67(3), 107-116.
  35. Saitoh T.M., Tamagawa, I. and Muraoka H. (2011) Effect of storage CO2 term on evaluating carbon budget using eddy-covariance measurement, Journal of the Japanese Forest Society (in Japanese with English summary)
  36. Sasai T., Saigusa N., Nasahara K.M., Ito A., Hashimoto H., Nemani R., Hirata H., Ichii K., Takagi T., Saitoh T.M., Ohta T., Murakami K., Oikawa T., Yamagichi Y. (2011) Satellite-driven estimation of terrestrial carbon flux over Far East Asia with 1-km grid resolution, Remote Sensing of Environment 115, 1758-1771, doi:10.1016/j.rse.2011.03.007.
  37. Saitoh T.M., Tamagawa I., Muraoka H., and Koizumi H. (2010) Heat storage due to photosynthesis and respiration activities in forests, Journal of Agricultural Meteorology, 66(4), 289-298 (in Japanese with English summary).
  38. Yashiro Y., Lee N.-Y., Ohtsuka T., Shizu Y., Saitoh T.M., Koizumi H. (2010) Biometric based estimation of net ecosystem production (NEP) in a mature Japanese cedar (Cryptomeria japonica) plantation beneath a flux tower. Journal of Plant Research, 123, 463-472, doi:10.1007/s10265-010-0323-8..
  39. Saitoh T.M., Tamagawa, I., Muraoka H., Lee N-Y., Yashiro Y., and Koizumi H. (2010) Carbon dioxide exchange in a cool-temperate evergreen coniferous forest over complex topography in Japan during two years with contrasting climates. Journal of Plant Research, 123, 473-483, doi:10.1007/s10265-009-0308-7.
  40. Muraoka H., Saigusa N., Nasahara K.N., Noda H., Yoshino J., Saitoh T.M., Nagai S., Murayama S. and Koizumi H. (2010) Effects of seasonal and interannual variations in leaf photosynthesis and canopy leaf area index on gross primary production of a cool-temperate deciduous broadleaf forest in Takayama, Japan. Journal of Plant Research, 123, , 563-576, doi: 10.1007/s10265-009-0270-4.
  41. Yoshino J., Muraoka H., Nagai S., Ishihara M., Saitoh T.M., Kojima T., Tamagawa I., Yasuda T. (2008) An evaluation method of the basin-scale ecosystem function for forest environment conservation, Environmental Systems research 36, 277-286. (in Japanese)
  42. Ohashi M., Kumagai T., Kume T., Gyokusen K., Saitoh T.M., Suzuki M. (2008) Characteristics of soil CO2 efflux variability in an aseasonal tropical rainforest in Borneo Island. Biogeochemistry, 90, pp275-289, DOI 10.1007/s10533-008-9253-0.
  43. Tamagawa I., Yoshino J., Kano T., Yasuda T., Muraoka H., Kojima T., Ishihara M., Nagai S., Saitoh T.M., Lee M-S., Maki M., Akiyama T. and Koizumi H. (2008) Numerical model for connecting ecological process study and satellite remote sensingJ. Japan. Agric. Sys. Soc.,24, pp129-136 (in Japanese with English summary).
  44. Saitoh T.M., Tamagawa I., and Maki M., Koizumi H. (2006) Water and energy exchange over a plantation evergreen coniferous forest on mountain slopes, Proceeding of 3rd Asia Pacific Association of Hydrology and Water Resources (APHW) Conference, manuscript_ST-01-A03-304_1152949906.
  45. Kumagai T., Ichie T., Yoshimura M., Yamashita M., Kenzo T., Saitoh T. M., Ohashi M., Suzuki M., Koike T. and Komatsu H. (2006) Modeling CO2 exchange over a Bornean tropical rain forest using measured vertical and horizontal variations in leaf-level physiological parameters and leaf area densities. Journal of Geophysical Research -Atmospheres, 111, D10107, doi:10.1029/2005JD006676.
  46. Kumagai, T. Saitoh T.M., Sato, Y., Takahashi H., Manfroi O.J., Morooka T., Kuraji K., Suzuki M., Yasunari T. and Komatsu H. (2005) Annual water balance and seasonality of evapotranspiration in a Bornean tropical rainforest. Agricultural and Forest Meteorology, 128(1-2), pp81-92.
  47. Saitoh T.M., Kumagai T., Sato Y. and Suzuki M. (2005) Carbon dioxide exchange over a Bornean tropical rainforest. Journal of Agricultural meteorology, 60(5), pp553-556.
  48. Saitoh T.M., Kumagai T., Sato Y., Morooka T. and Suzuki M. (2005) Nighttime CO2 flux over a Bornean tropical rainforest J. Jpn. Soc. Hydrol. Water Resour., 18, pp64-72. (in Japanese with English summary)
  49. Kumagai T., Katul G.G., Porporato A., Saitoh T.M., Ohashi M., Ichie T. and Suzuki M. (2004) Carbon and water cycling in a Bornean tropical rainforest under current and future climate scenarios. Advances in Water Resources, 27(12), pp1135-1150.
  50. Sato Y., Kumagai T., Saitoh T.M. and Suzuki M. (2004) Characteristics of soil temperature and soil heat flux within tropical rainforest, Lambir Hills National Park, Sarawak, Malaysia. Bulletin of the Institute of Tropical Agriculture, Kyushu University, 27, pp55-63.
  51. Saitoh T.M., Kumagai T., Sato Y., and Suzuki M. (2004) An auto measurement system for CO2 concentration profile within a canopy, J. Jpn. Soc. Hydrol. Water Resour., 17, pp648-653. (in Japanese with English summary)
  52. Kumagai T., Saitoh T.M., Sato Y., Morooka T., Manfroi O.J., Kuraji K. and Suzuki, M. (2004) Transpiration, canopy conductance and the decoupling coefficient of a lowland mixed dipterocarp forest in Sarawak, Borneo: dry spell effects. Journal of Hydrology, 287(1-4), pp237-251.
  53. Kumagai T., Katul G.G., Saitoh T.M., Sato Y., Manfroi O.J., Morooka T., Ichie T., Kuraji K., Suzuki M. and Porporato A. (2004) Water cycling in a Bornean tropical rainforest under current and projected precipitation scenarios. Water Resources Research, 40(1), W01104, 10.1029/2003WR002226.

Books

  1. Saitoh T.M. （2009）CO2 flux measurement using eddy-covariance method, In: Institute of Low Temperature Science, Hokkaido University and The Japanese Association for Photosynthesis Research (eds), Photosynthesis Research: Institute of Low Temperature Science, Hokkaido University, Low Temperature Science, 67, 129-136.

(2018.4.24 updated)