G2TT
来源类型Articles
规范类型论文
DOI10.1017/S0266467408005506
ISSN0564-3295
Regional variation in tropical forest tree species composition in the Central African Republic: an assessment based on inventories by forest companies
Brockhaus, M.; Kambire, H.
发表日期2008
出处Journal of Tropical Ecology 24(6)
出版者Cambridge University Press
出版年2008
语种英语
摘要

Understanding how species assemblages are structured in relation to environmental variation is a central issue in community ecology. However, factors that create regional variation in relative species abundances have been little studied due to the rarity of large-scale datasets. Here, we investigated a large dataset (30 180 0.5-ha plots spread over 1 600 000 ha) gathered from forest planning inventories in the semi-deciduous forest of the south western Central African Republic. We used Correspondence Analysis and Non-Symmetric Correspondence Analysis on Instrumental Variables to analyse variation in the abundance of 73 common tree species in relation to soil type, rainfall and proximity to villages. Together, environmental variables explained 10.3% of multi-species floristic variation among plots, and the regional spatial structure almost disappeared when the effects of these variables were removed. A Trend Surface Analysis using a third order polynomial function of the geographical coordinates of the plots explained 14.5% of the floristic variation and more than 75% of this variation was explained by environmental variables. Sandy soil was the most influential factor affecting floristic composition. Residual spatial variation not explained by the environmental variables probably reflects the natural and anthropogenic history of the vegetation.

主题soil properties ; forests ; climate ; biology ; plantation ; community ecology ; forest ecology ; plant communities ; spatial variation ; tropical forests
区域Central African Republic
URLhttps://www.cifor.org/library/4579/
来源智库Center for International Forestry Research (Indonesia)
引用统计
资源类型智库出版物
条目标识符http://119.78.100.153/handle/2XGU8XDN/91309
推荐引用方式
GB/T 7714
Brockhaus, M.,Kambire, H.. Regional variation in tropical forest tree species composition in the Central African Republic: an assessment based on inventories by forest companies. 2008.
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