Ecological studies on the timberline of Mt. Fuji
- 118 Downloads
The distribution of the meadow above the timberline and the structure of the forest at and below the timberline were investigated on the southeast slope of Mt. Fuji. At the same time, soil profiles, water content and nutrients in the soil as related to change in the structure of the plant community were examined to obtain the data regarding soil development with the course of succession.
In the course of change in structure of forest, the plant community was classified into three types:Salix/Alnus dwarf forest,Larix forest andAbies/Picea forest. The change in the soil profile, from immature to mature soil, was observed. At the timberline the water content increased rapidly from about 10% of bare land to about 25% of timberline. The nitrogen and carbon contents also increased at timberline as compared with bare land.
Relationships between successional stage and soil development were clarified on the area from bare land to climax forest. The present state of the timberline at the investigated area is discussed with reference to the course of change in forest structure and soil development. It was concluded that the timberline of the investigated area is in the process of moving to a higher altitude. This conclusion was reasonable in view of the factor of air temperature.
Key wordsAlpine meadow Larix leptolepis Mt. Fuji Perennial herbs Soil development Timberline
Unable to display preview. Download preview PDF.
- Brockmann-Jerosch, H. 1919. Baumgrenze und Klimacharacter p. 35–47. Rascher and Cie, Zürich.Google Scholar
- Hayata, B. 1911. The Vegetation of Mt. Fuji. Maruzen, Tokyo.Google Scholar
- — 1929. Succession in the vegetation of Mt. Fuji. Act. For. Fenn.34: 1–28.Google Scholar
- Ito, E. 1972. Silviculture of Mt. Fuji. Shizuoka Pref, Dept. of Agr. Forestry p. 1–119 (in Japanese).Google Scholar
- Kimura, M. 1963. Dynamics of vegetation in relation to soil development in northern Yatsugatake mountains. Jap. J. Bot.18: 255–278.Google Scholar
- Kira, T. 1949. Forest zone of Japan. Ringyogizyutu-kyokai Tokyo (in Japanese).Google Scholar
- Masuzawa, T., K. Takeyama andS. Sakio.. 1982. An ecological study of microclimate at timberline on Mt. Fuji I. Measurement of diurnal change in air and soil temperature in spring. Rep. Fac. Sci., Shizuoka Univ.16: 93–101.Google Scholar
- — 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
- Miyawaki, A. andT. Hamada. 1973. Ein kurzes vegetationskundliches Gutachten der Umgebung des Berges Fuji. Sci. Rep. Mt. Fuji. Namazu City p. 35–63 (in Japanese).Google Scholar
- Tadaki, Y., K. Hatiya, K. Tochiaki, H. Miyauchi andU. Matsuda. 1970. Primary productivity ofAbies veitchii forests in the subalpine zone. Bull. Gov. For. Expt. St.299: 1–22.Google Scholar
- Tagawa, H. 1964. A study of the volcanic vegetation in Sakurajima, south-east Japan. I. Dynamics of vegetation. Mem. Fac. Sci. Kyushu Univ., Ser. E.3: 165–228.Google Scholar
- Tezuka, Y. 1961. Development of vegetation in relation to soil formation in the volcanic island of Oshima, Izu, Japan. Jap. J. Bot.17: 371–402.Google Scholar
- Tohyama, M. 1965a. cool temperate montane forest of Mt. Fuji. J. Fac. Agr., Hokkaido Univ.5: 111–124 (in Japanese).Google Scholar
- — 1965b. Forest vegetation on the lava flows of Mt. Fuji. J. Fac. Agr., Hokkaido Univ.5: 125–137 (in Japanese).Google Scholar
- — 1968. The alpine vegetation of Mt. Fuji. J. Fac. Agr., Hokkaido Univ. 55,4: 459–467.Google Scholar
- Tranquillini, W. 1979. Physiological Ecology of the Alpine Timberline p. 1–4. Springer-Verlag, Berlin.Google Scholar
- Yuasa, Y. and E. Ito. 1971. Structure of natural larch forest of the southeastern slope, Hoei crater. 20th Meet. Jap For. Chubu Soc. p. 26–33 (in Japanese).Google Scholar