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来源类型 | Articles |
规范类型 | 论文 |
DOI | 10.1017/S0266467408005506 |
ISSN | 0564-3295 |
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 |
URL | https://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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