Stand Structure of a Natural Pinus-Cunninghamia Forest in Anhui, Eastern China

1 Southwest Forestry University, Faculty of Ecotourism, Kunming, 650224, P. R.. China
2 Chiba University, Graduate School of Horticulture, Matsudo 648, Chiba, 271–8510, Japan


CHENG, XIPING, YANFANG WANG, HEDE GONG and XIAOJUN YANG, 2012. Stand structure of a natural Pinus-Cunninghamia forest in Anhui, Eastern China. Bulg. J. Agric. Sci., 18: 997-1004

The aim is to determine the ecological characteristics of Pinus massoniana Lamb and Cunninghamia lanceolata (Lamb) Hook, which co-dominate a natural coniferous forest in the Huangshan region of Anhui Province, eastern China, we examined the spatial patterns, size structure, and tree height-diameter relationship of both species. P. massoniana dominated the canopy layer, but smaller individuals were scarce. In contrast, C. lanceolata co-dominated the sub-canopy layer and had a considerable number of saplings and sprouting from the root collar of larger individuals. The spatial pattern of P. Massonianatended to be overdispersed at small scales, but became random-overdispersed at intermediate to larger scales. The spatial pattern of C. lanceolata was clumped at small scales. In a young stand, tree height at a given stem diameter was larger for P.massoniana than for C. lanceolata. Based on these results, we inferred several ecological characteristics of these two dominant species: Cunninghamia lanceolata is a relatively slow-growing shade-tolerant species. P. massoniana is a fast-growing shade-intolerant species that has high mortality rates if suppressed and regenerates only after large-scale disturbances.

Key words: Natural forest, size structure, spatial pattern, tree height-diameter relationship
Abbreviations: Pinus massoniana Lamb (P. massoniana); Cunninghamia lanceolata (Lamb) Hook (C. lanceolata)

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