Study on complexity of plant communities at different altitudes on the Northern Slope of Changbai Mountain

Abstract

By the method of gradient pattern analysis, twenty plots were set at altitudes of 700–2600 m with an interval of 100 m on the northern slope of the Changbai Mountain. The dissimilarity of respective sub-plots in the same community was measured and the complexity of plant communities at different altitudes was analyzed. The result from binary data of tree species in canopy tree indicated that the sub-plots in the communities, except subalpineBetula ermanii forest, showed comparatively high dissimilarity in species composition. Especially, the dissimilarity index (0.7) of broadleaved/Korean pine forest at low altitudes was obviously higher than other communities. The differences are not obvious between communities referring to dark coniferous forest. Comparatively, the dissimilarity in sub-plots of the communities at altitude of 1400 m was slightly higher than that of other communities, which reflected the complexity of tree species compositions of transitory-type communities. For subalpineBetula ermanii forest, tree species composition was simple and showed a high similarity between sub-plots. The results derived from binary data of shrub showed that the dissimilarity index of shrub species in broadleaved/Korean pine forest at low altitudes was higher than that in other communities, but the divergence tendency wasn’t so obvious as that of arbor species. The dissimilarity derived from binary data of herb and all plant species at different altitudes showed greatly close tendency, and the differences in herb and all plant species between sub-plots were the greatest for the communities of broad-leaved-Korean pine forest and alpine tundra zone.

Keywords

Changbai Mountain / Complexity / Plant community / Altitude gradient / S718.54 / A

References

[1] Lingzhi Chen, Xiancheng Bao et al. Some structural characteristics of main plant communities in different vertical zones on the Northern slope of the Changbai Mountain in Jilin province [J]. Acta phytoecologica et Geobotanica sinica, 1964, 2(2): 207-225.

[2] Zhenwen Chi, Fengshan Zhang et al. Initial research on water and hot conditions of main forest vegetation types on the northern slope of the Changbai Mountain [C] Research of Forest Ecosystem (2), 1981 Beijing: China Forestry Publishing House 179-186.

[3] Keping Ma Yingqian Qian Measurement method of diversity of biological communities [C] The Principle and Method Research about Biological Diversity, 1994 Beijing: Chinese Science and Technique Publisher 141-165.

[4] Magurran A.E. Ecological diversity and its measurement [M], 1988 New Jersy: Princeton University Press

[5] Hong Qian Alpine tundra vegetation of Chanbai Mountain [C] Research of Forest Ecosystem (6), 1992 Beijing: China Forestry Publishing House 72-96.

[6] Zhan Wang, Zhenbang Xu et al. Main forest types and characteristics of community structure on the northern slope of the Changbai Mountain (I) [C] Research of Forest Ecosystem (1), 1980 Beijing: China Forestry Publishing House 25-42.

[7] Fenshan Zhang, Xiaoyan Li Temperature and humidity characteristics of main forest types in growing period on the northern slope of the Changbai Mountain [C] Research of Forest Ecosystem (4), 1984 Beijing: China Forestry Publishing House 243-254.

[8] Dachang Zhao Vertical distribution zone of vegetation of the Changbai Mountain [C] Research of Forest Ecosystem (1), 1980 Beijing: China Forestry Publishing House 65-70.