Abstract
Altitudinal zonation of evergreen, deciduous and coniferous forests on Mt. Emei (3099 m asl, 29°34.5' N, 103°21.5' E), Sichuan, China was studied to understand the transition of vegetation zonation from tropical to temperate mountains in humid Asia. On the basis of quantitative data on floristic composition and community structure sampled at ten plots selected in different altitudes on the eastern slope of the mountain, forest zonation and the inter-relationships among different life-forms of trees in each zonal forest community were studied quantitatively. Three forest zones were identified physiognomically along the altitudinal gradient, viz. (i) the evergreen broad-leaved forest zone (660–1500 m asl), (ii) the mixed forest zone (1500–2500 m asl), and (iii) the coniferous forest zone (2500–3099 m asl). Great compositional changes were observed along elevation, and the zonal forest communities were characterized by their dominants and floristic composition. Maximum tree height decreased from 33 m at lower middle altitude (965 m asl) to 13 m near the summit (2945 m asl). There was no apparent deciduous forest zone along the altitudinal gradient, but true mixed forests of three life-forms (evergreen, deciduous, and coniferous) were formed around 2000–2500 m asl. Patches of deciduous forest were found in a lower part of the mixed forest zone, particularly on scree slopes, between 1450 m and 1900 m asl. These patches were dominated by the Tertiary relic deciduous trees, such as Davidia involucrata, Tetracentron sinense, and Cercidiphyllum japonicum var. sinense. High species diversity in the mixed forest zone resulted from the overlapping of different life-forms at middle altitudes, which is partly due to wider variety of temperature-altitude correlations. A comparison of the altitudinal zonation with the other east Asian mountain vegetation clarified that Mt. Emei is located exactly at the ecotone between tropical and temperate zonation types in eastern Asia.
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References
Chang D. H. S. 1981. The vegetation zonation of the Tibetan Plateau. Mountain Res. Devel. 1(1): 29-48.
Chang K-W. & Chiang S. 1973. A primary study on the vertical vegetation belt of Mt. Jolmo-Lungma (Everest) region and its relationship with horizontal zone (in Chinese with English abstract). Acta Bot. Sinica 15(2): 221-236.
Editorial Board of Chinese Medical Botany on Mt. Emei. 1981. A study on medical botany on Mt. Emei (in Chinese). Published by Sichuan Chinese Medicine School.
Fang, J-Y. & Yoda, K. 1988. Climate and vegetation in China (1) Changes in the altitudinal lapse rate of temperature and distribution of sea level temperature. Ecol. Res. 3: 37-51.
Flora Sichuanica Editorial Board. 1981-1992. Flora Sichuanica (in Chinese). Sichuan Science and Technology Press, Chengdu.
Guan, Z-T. 1982. The geography of conifers in Sichuan (in Chinese). Sichuan People Press, Chengdu.
Guan, Z-T. & Chen, Y. 1986. A preliminary study on the Cathaya mixed forest in Jinfushan, Sichuan (in Chinese with English abstract). Acta Bot. Sinica 28(6): 646-656.
Kira, T. 1948. On the altitudinal arrangement of climax zones in Japan (in Japanese). Kanti-Nougaku 2: 143-173.
Kitazawa, Y., Kusumoto, T. & Kimura M. 1961. Distribution of species populations of forest trees along elevation gradient at Mt. Kirishima, southern part of kyushu, Japan. Misc. Rep. Res. Inst. Nat. Res. 54-55: 86-92.
Li, C-G. 1990. The natural vertical zones on the east slope of Mt. Emei in Sichuan Province (in Chinese with English abstract). Mountain Res. 8: 39-44.
Li, W-H. & Chou P-C. 1984. The geographical distribution of the spruce-fir forest in China and its modelling. Mountain Res. Devel. 4(3): 203-212.
Li, X-G. 1984. The preliminary investigation on the vertical distribution of the forest vegetation on Emei mountain, Sichuan Province (in Chinese with English abstract). Acta Phyt. Geob. Sinica 8(1): 52-66.
Liu Z-G. & Qiu F-Y. 1986. The main vegetation types and their distribution in the Gongga mountainous region (in Chinese with English abstract). Acta Phyt. Geob. Sinica 10(1): 26-34.
Ohsawa, M. 1984a. Differentiation of vegetation zones and species strategies in the subalpine region of Mt. Fuji. Vegetatio 57: 15-52.
Ohsawa, M. 1984b. Vegetation structure and dynamics in the Yakushima wilderness area, south Japan (in Japanese with English summary). Long Term Ecological Studies in the Yakushima Wilderness Area and its Surrounding Area: 317-351. Environment Agency, Nature Conservation Bureau Nature Conservation Society of Japan.
Ohsawa, M. 1987a. Vegetation zones in the Bhutan Himalaya. Life Zone Ecology of the Bhutan Himalaya: 1-71. Published by Chiba University.
Ohsawa, M. 1987b. Habitat differentiation and the ecological niche in vegetation. Phys. Ecol. Japan 24 (Special No.): s15-s27.
Ohsawa, M. 1990. An interpretation of latitudinal patterns of forest limits in south and east Asian mountains. J. Ecol. 78: 326-339.
Ohsawa, M. 1991. Structural comparison of tropical montane rain forest along latitudinal and altitudinal gradient in south and east Asia. Vegetatio 97: 1-10.
Ohsawa, M. 1993. Latitudinal pattern of mountain vegetation zonation in southern and eastern Asia. J. of Veg. Sci. 4: 13-18.
Ohsawa, M. 1995. Latitudinal comparison of altitudinal changes in forest structure, leaf-type, and species richness in humid monsoon Asia. Vegetatio 121: 3-10.
Ohsawa, M., Nainggolan, P. H. J., Tanaka, N. & Anwar, C. 1985. Altitudinal zonation of forest vegetation on Mount Kerinci, Sumatra: with comparisons to zonation in the temperate region of east Asia. J. Tropical Ecol. 1: 193-216.
Pielou, E. C. 1969. An introduction to mathematical ecology. Wiley, New York.
Sakai, A., Ohsawa, T. & Ohsawa, M. 1995. Adaptive significance of sprouting of Euptelea polyandra, a deciduous tree growing on steep slopes with shallow soil. J. Plant Res. 108: 377-386.
Song Y-C. 1988. The essential characteristics and main types of the broad-leaved evergreen forest in China. Phytocoenologia 16(1): 105-123.
Su, H-J. 1984. Studies on the climate and vegetation types of the natural forests in Taiwan. II. Altitudinal vegetation zones in relation to temperature gradient. Quart. J. Chin. For. 17: 57-73.
Wang, C-W. 1961. The forest of China with a survey of grassland and desert vegetation. Maria Moors Cabot Foundation Publication No. 5, Harvard University, Cambridge, MA.
Whittaker, R. H. 1975. Communities and ecosystems. The Macmillan Company, New York, U. S. A.
Wolfe, J. A. 1979. Temperature parameters of humid to mesic forests of eastern Asia and relation to forests of other regions of the northern hemisphere and Australasia. United States Geological Survey, Professional Paper 1106.
Yang, Y-C. & Li, T-J. 1989. Preliminary studies on the phytocommunity of Davidia involucratain Emei mountain of Sichuan (in Chinese with English abstract). Acta Phyt. Geob. Sinica 13(3): 270-276.
Yang, Y-P. 1985. Gao Shan Ying Lin Shou Ce (Forestry manual for the mountain forest) (in Chinese). Sichuan Scientific Technology Press, Chengdu.
Zhao, B-L. & Chen, Y-H. 1980. Emei Shan (Mount Emei) (in Chinese). Sichuan People Press, Chengdu.
Zheng D. & Chen W-L. 1981. A preliminary study on the vertical belts of vegetation of the eastern Himalayas (in Chinese with English abstract). Acta Bot. Sinica 23(3): 228-234.
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Tang, C.Q., Ohsawa, M. Zonal transition of evergreen, deciduous, and coniferous forests along the altitudinal gradient on a humid subtropical mountain, Mt. Emei, Sichuan, China. Plant Ecology 133, 63–78 (1997). https://doi.org/10.1023/A:1009729027521
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DOI: https://doi.org/10.1023/A:1009729027521