The Korean Journal of Ecology

The Ecological Society of Korea (한국생태학회)
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Palynological Study of Akindonuma Moor in the Central Oh-u Backbone Range, Northeasternl Japan

  • Park, Ji-Hoon (Korea Institute of Geoscience and Mineral Resources)
  • Published : 2002.04.01
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Abstract

Pollen analyses and $^{14}$ C dating of the sediments of the Akindonuma moor, which is situated in a closed depression of an old landslide, were peformed in order to study the vegetation history of the montane zone of the Miyagi Prefecture, Northeast Japan. The main results are as follows: Two forest zones have been distinguished: 1) the A-I zone, or the Fagus-Quercus-Betula forest (R I stage, before about 11,700 yrs B.P.), and 2) the A-II zone, or the Fagus-Quercus forest (R II stage, after about 11,700 yrs B.P.). By comparing the geological section with the pollen diagram of the moor, it is assumed that the deposit environment of the Middle Part, which mostly consists of peat layers, is very stable. During the period, the Ulmus/Zelfkova pollen ratio was very low and small peak was not recognized. According to the preceding research, theme is a close relationship between the fluctuation of the Ulmus/Zelkova pollen ratio and the general trend of hillslope instability in the changing balance of temporature and precipitation Actually, Zelkova serrata tends to cover the footslope and the lower sideslope. Ulmus davidiana covers the footslope and the alluvial cone. Therefore, the fact that the Ulmus/Zeikova pollen ratio was very low and small peak was not recognized, is believed to reflect the stability of the earth's surface environment, which was estimated from the geological section.

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References

  1. Hibino, K., Y. Morita, T. Miyagi and H. Yagi. 1991. Palynological study on the vegetational change during the last 120,000 years B.P. in Kawadoi basin, Yamagata Prefecture, Japan. Rep. Miyagi Agri. Col. 39: 35-39
  2. Makita, H., T. Kikuchi, O. Miura and K. Sugawara. 1976. A geobotanical study of alder forest and elm forest in a small Tributary Basin. Ann.Tohoku Geogr. Assoc. 28: 83-93
  3. Miyagi, T., K. Hibino and T. Kawamura. 1979. Processes of hills lope denudation and environmental changes during the Holocene around Sendai, Northeast Japan. The Quaternary Res. 18:143-154 https://doi.org/10.4116/jaqua.18.143
  4. Miyagi, T., K. Hibino, T. Kawamura and K. Nakagami. 1981. Hillslope development under changing environment since 20,000 years. B.P. in Northeast Japan. Sci. Repts. Tohoku Univ., 7th Ser,(Geogr.). 31:1-14
  5. Nakamura, J. 1952. A comparative study of Japanese pollen records. Res. Rep. Kochi Univ. 1:1-20
  6. Nakamura, T. and T. Miyagi. 1984. Hillslope development and sediment yield under changing environment since 46,000 years B.P. in the Kawadoi basin, Northeast. Japan. Ann. Tohoku Geogr. Assoc. 36:25-38 https://doi.org/10.5190/tga1948.36.25
  7. Park, J. H. and K. Hibino. 1999. Pollen analytical study of earth surface environment change in the central Ohu Mountains, northeastern Japan-with special reference to Ulmus/Zelkova. Proceedings, -Korea-Japan/Japan-Korea Geomophological Conference: 136-139
  8. Park, J. H. 2000a. Pollen analytical study of holocene earth surface environment change in Akindonuma Moor, Northeasern Japan. Quarterly Journal of Geography. 53(3): 227-228
  9. Park, J. H. 2000b. Pollen analytical study on the sediment of closed depressions in Miyagi Prefecture - with reference to the occurrence of regollth slides and related environment in the Postglacial Age. Programme and Abstracts of Japan Association for Quaternary Research. 30: 50-51
  10. Park, J. H. 2000c. Holocene climatic change and geomorphic processes on hillslopes in the central part of the Oh-u backbone range, northeastern Japan - A chronological approach consisting of pollen analysis and detailed stratigraphy of closed depression deposits -. Dissertation to the Tohoku Univ. 113p
  11. Park, J. H. and T. Tamura. 2001. The postglacial vegetation history in the central part of the Oh-u backbone range, northeastern Japan. Proceedings of the General Meeting of the Korean Geographical Society. pp. 165-168
  12. Park, J. H., K. Hibino and J. Y. Kim. 2001. Palynological study of Yugawanuma Moor in the central Oh-u backbone range, northeastern Japan. The Korean Journal of Quaternary Research 15(2); 93-99
  13. Park, J. H., T. Tamura, K. R. Choi and J. Y. Kim. 2001. A proposal of 'Ulmus/Zelkova pollen indicator' for the study of hillslope processes in the northeastern Japan and Korean Peninsula. International Symposium on Impacts of Geo-Environmental Changes on Plants in Northeast Asian Region. 23
  14. Yamanaka, M. 1972. Pollen analytical studies of the moors in the lowlands in Iwate Prefecture. (II )Harukoyachi Moor. Jap. J. Ecol. 22:170-179

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