Community analysis on secondary tropical vegetations in Xishuangbanna

Abstract

Abstract: Two secondary vegetations regenerated from the tropical rain forest in Menglun, Xishuangbanna after its. slash and burn cultivation were comparatively analyzed on their quantitative characteristics of community, population age structure, standing tree volume and stand volume. The results show that in a 900m² fixed plot, the natura secondary community had 73 species, 59 genera and 36 families of vascular plants. and the numbers of family, genus and species in it were 24.14%, 43.9% and 75.56% respectively higher than those of secondary community with artificial tending. The structure of the natural secondary community was also more complex than that of the artificial one, while the stand volume of the former was only 1/4 as much as that of the latter.

Key words: Secondary tropical vegetation, Community characteristics, acid rain, phosphorus, Camellia sinensis, tissue differentiation, nitrogen

Tang Jianwei, Zhang Jianhou, Song Qishi, Feng Zhili . Community analysis on secondary tropical vegetations in Xishuangbanna[J]. Chinese Journal of Applied Ecology, 1999, 10(2): 135-139.

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