The botanical magazine = Shokubutsu-gaku-zasshi

, Volume 100, Issue 4, pp 349–363 | Cite as

Ecological studies on the timberline of Mt. Fuji

II. Primary productivity ofAlnus maximowiczii dwarf forest
  • Hitoshi Sakio
  • Takehiro Masuzawa


An ecological study of dry matter production was made in a dwarf forest dominated byAlnus maximowiczii at the timberline of Mt. Fuji.

Annual gross production was estimated by two methods, namely the summation method using stem analysis and total photosynthesis calculated from leaf area and photosynthetic rate per leaf area. Seasonal changes in relative light intensity and in leaf area were measured in a quadrat. Photosynthesis and respiration rates of samples were measured in temperature-regulated assimilation chambers.

The phytomass was 2,989 g d.w.m−2, and those of stems and branches, leaves, and roots were 1,672 g, 293 g, and 1,024 g respectively. The growing period of this plant was about four months and this plant expanded leaves quickly. The maximum gross photosynthetic rate was 21 mg CO2dm−2 h−1 on September 1.

Annual net production estimated by examining the annual rings was 922 g d.w.m−2 year−1 and annual respiration was 735 g. Annual gross production estimated from photosynthetic rates was 1,747 g d.w.m−2 year−1. The sum of annual net production by stem analysis and respiration agree closely with gross production estimated from photosynthetic rate.

Gross production of this dwarf forest is comparable to the beech forest of the upper cool temperate zone owing to the high photosynthetic rate ofAlnus maximowiczii.

Key words

Alnus maximowiczii Annual production Forest phytomass Mt. Fuji Production structure Timberline 


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  1. Hayata, B. 1911. The Vegetation of Mt. Fuji. Maruzen, Tokyo.Google Scholar
  2. — 1929. Succession in the vegetation of Mt. Fuji. Act. For. Fenn.34: 1–28.Google Scholar
  3. Ikusima, I. 1967. Ecological studies on the productivity of aquatic plant communities III. Effect of depth on daily photosynthesis in submerged macrophytes. Bot. Mag. Tokyo80: 57–67.Google Scholar
  4. Ito, E. 1964. Climate of Mt. Fuji. Bull. Fac. Agr., Shizuoka Univ.14: 177–187 (in Japanese).Google Scholar
  5. Kimura, M. 1960. Primary production of the warm-temperature laurel forest in the southern part of Ôsumi Peninsula, Kyûshû, Japan. Misc. Rep. Res. Inst. Nat. Resour.52–53: 36–47.Google Scholar
  6. — 1976. Methods of Estimating Primary Production of Terrestrial Plant Communities. Kyoritsu Shuppan, Tokyo (in Japanese).Google Scholar
  7. —. 1968. Ecological and physiological studies on the vegetation of Mt. Shimagare VI. Growth and dry matter production of youngAbies stand. Bot. Mag. Tokyo81: 287–296.Google Scholar
  8. Kira, T., H. Ogawa, K. Yoda andK. Ogino. 1964. Primary production by a tropical rain forest of southern Thailand. Bot. Mag. Tokyo77: 428–429.Google Scholar
  9. —,H. Ogawa, K. Yoda andK. Ogino. 1967. Comparative ecological studies on three main types of forest vegetation in Thailand. IV. Dry matter production, with special reference to the Khao Chong rain forest. Nature and Life in SE Asia5: 149–174.Google Scholar
  10. — andT. Shidei. 1967. Primary production and turnover of organic matter in different forest ecosystems of the Western Pacific. Jap. J. Ecol.17: 70–87.Google Scholar
  11. Maruyama, K. 1971. Effect of altitude on dry matter production of primeval Japanese beech forest communities in Naeba Mountains. Mem. Fac. Agr., Niigata Univ.9:85–171.Google Scholar
  12. Maruyama, K., S. Yamada and M. Nakazawa. 1968. A tentative calculation of gross production by natural forests of beech. Ecological studies on beech forest (17). Trans. 79th Meet., Jap. For. Soc. p. 286–288 (in Japanese).Google Scholar
  13. Masuzawa, T. 1983. An ecological study of microclimate at timberline on Mt. Fuji: II. Air temperature, relative humidity and light condition. Rep. Fac. Sci., Shizuoka Univ.17: 91–99.Google Scholar
  14. — 1985. Ecological studies on the timberline of Mt. Fuji I. Structure of plant community and soil development on the timberline. Bot. Mag. Tokyo98: 15–28.CrossRefGoogle Scholar
  15. Monsi, M. andT. Saeki. 1953. Über den Lichtfaktor in den Pflanzengesellschaften und seine Bedeutung für die Stoffproduktion. Jap. J. Bot.14: 22–52.Google Scholar
  16. Nomoto, N. 1964. Primary productivity of beech forest in Japan. Jap. J. Bot.18: 385–421.Google Scholar
  17. Pisek, A. andE. Winkler. 1958. Assimilationsvermögen und Respiration der Fichte (Picea excelsa Link) in Verschiedener Höhenlage und der Zirbe (Pinus cembra L.) an der Alpinen Waldgrenze. Planta51: 518–543.CrossRefGoogle Scholar
  18. Saeki, T. 1959. Variation of photosynthetic activity with aging of leaves and total photosynthesis in a plant community. Bot. Mag. Tokyo72: 404–408.Google Scholar
  19. — 1960. Interrelationships between leaf amount, light distribution and total photosynthesis in a plant community. Bot. Mag. Tokyo72: 55–63.Google Scholar
  20. —. 1958. On the seasonal change of photosynthetic activity of some deciduous and evergreen broadleaf trees. Bot. Mag. Tokyo71: 235–241.Google Scholar
  21. Shizuoka District Meteorological Observatory. 1981. Kishô Geppô, Shizuoka (in Japanese).Google Scholar
  22. Tadaki, Y. 1965. Studies on the production structure of forests (VII). The primary production of a young stand ofCastanopsis cuspidata. Jap. J. Ecol.15: 142–147.Google Scholar
  23. — 1968. Studies on the production structure of forests (XIV). The third report on the primary production of a young stand ofCastanopsis cuspidata. J. Jap. For. Soc.50: 60–65.Google Scholar
  24. —. 1970. Studies on the production structure of forest (XVI). Primary production ofAbies veitchii forests in the subalpine zone of Mt. Fuji. Bull. Gov. For. Exp. Sta.229: 1–22.Google Scholar
  25. Tohyama, M. 1966. Subalpine needle-leaved forests of Mt. Fuji. Mem. Fac. Agr. Hokkaido Univ.6-1: 1–34 (in Japanese).Google Scholar
  26. — 1968. The alpine vegetation of Mt. Fuji. J. Fac. Agr., Hokkaido Univ.55, 4: 459–467.Google Scholar
  27. Tranquillini, W. 1979. Physiological Ecology of the Alpine Timberline. Springer-Verlag, Berlin.Google Scholar
  28. Yamaya, K. 1972. Studies on leaf-decomposition of alder (Alnus inokumae) and movement of some ingredients originating from decomposed leaves. Bull. Gov. For. Exp. Sta.249: 1–16.Google Scholar

Copyright information

© The Botanical Society of Japan 1987

Authors and Affiliations

  • Hitoshi Sakio
    • 1
  • Takehiro Masuzawa
    • 1
  1. 1.Biological Institute, Faculty of ScienceShizuoka UniversityShizuoka
  2. 2.Saitama Prefectural Forest Experiment StationSaitama

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