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https://hdl.handle.net/1959.11/8549
Title: | Tree competition and species coexistence in a 'Quercus-Betula' forest in the Dongling Mountains in northern China | Contributor(s): | Hou, J (author); Mi, X (author); Liu, Canran (author); Ma, K (author) | Publication Date: | 2006 | DOI: | 10.1016/j.actao.2005.10.002 | Handle Link: | https://hdl.handle.net/1959.11/8549 | Abstract: | The population size structure, growth dynamics and mode of competition among adult trees (≥ 4 cm DBH) of six abundant tree species in a 5 ha study plot of a temperate deciduous forest in the Dongling Mountains in northern China were investigated using diffusion and growth dynamics models. In the year of 2000, two dominant species, 'Quercus liaotungensis' and 'Betula dahurica' accounted for ca. 68.69% of the total basal area and 52.71% of the total density of adult plants. 'Q. liaotungensis', 'Populus davidiana' and 'Acer mono' exhibited inverse J-shaped DBH distributions whereas 'Betula dahurica', 'B. platyphylla' and 'Salix caprea' had unimodal DBH distributions. One-sided interspecific competition was detected between some species combinations at the scale of the 5 ha study plot, and the competitive effect was mainly size-dependent rather than from species-specific interactions with large individuals in the canopy layer out competing smaller individuals in the understory. Symmetric competition was found between 'Q. liaotungensis' and 'A. mono' only. However, considering the straight line relationship of G (t, x) - √D(t, x), which suggests that competitive asymmetry is very low or absent, combined with the relatively low mortality of trees with a DBH larger than 4 cm, we speculate that asymmetric interspecific competition was not important in structuring this tree community. Regeneration characteristics of each species are most likely important in regulating species coexistence and stand dynamics in this forest. | Publication Type: | Journal Article | Source of Publication: | Acta Oecologica, 30(1), p. 117-125 | Publisher: | Elsevier Masson | Place of Publication: | France | ISSN: | 1873-6238 1146-609X |
Fields of Research (FoR) 2008: | 060208 Terrestrial Ecology | Socio-Economic Objective (SEO) 2008: | 969999 Environment not elsewhere classified | Peer Reviewed: | Yes | HERDC Category Description: | C1 Refereed Article in a Scholarly Journal |
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Appears in Collections: | Journal Article |
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