Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1111/j.1365-2486.2006.01154.x |
Climate-growth relationships of tropical tree species in West Africa and their potential for climate reconstruction | |
Schoengart, Jochen; Orthmann, Bettina; Hennenberg, Klaus Josef; Porembski, Stefan; Worbes, Martin | |
通讯作者 | Schoengart, Jochen |
来源期刊 | GLOBAL CHANGE BIOLOGY
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ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2006 |
卷号 | 12期号:7页码:1139-1150 |
英文摘要 | Most tropical regions are facing historical difficulties of generating biologically reconstructed long-term climate records. Dendrochronology (tree-ring studies) is a powerful tool to develop high-resolution and exactly dated proxies for climate reconstruction. Owing to the seasonal variation in rainfall we expected the formation of annual tree rings in the wood of tropical West African tree species. In the central-western part of Benin (upper Oueme catchment, UOC) and in northeastern Ivory Coast (Comoe National Park, CNP) we investigated the relationship between climate (precipitation, sea surface temperature (SST)) and tree rings and show their potential for climate reconstruction. Wood samples of almost 200 trees belonging to six species in the UOC and CNP served to develop climate-sensitive ring-width chronologies using standard dendrochronological techniques. The relationship between local precipitation, monthly SST anomalies in the Gulf of Guinea, El Nino- Southern Oscillation (ENSO) and ring-width indices was performed by simple regression analyses, two sample tests and cross-spectral analysis. A low-pass filter was used to highlight the decadal variability in rainfall of the UOC site. All tree species showed significant relationships with annual precipitation proving the existence of annual tree rings. ENSO signals could not be detected in the ring-width patterns. For legume tree species at the UOC site significant relationships could be found between SST anomalies in the Gulf of Guinea indicating correlations at periods of 5.1-4.1 and 2.3 years. Our findings accurately show the relationship between tree growth, local precipitation and SST anomalies in the Gulf of Guinea possibly associated with worldwide SST patterns. A master chronology enabled the reconstruction of the annual precipitation in the UOC to the year 1840. Time series analysis suggest increasing arid conditions during the last 160 years which may have large impacts on the hydrological cycles and consequently on the ecosystem dynamics and the development of socio-economic cultures and sectors in the Guinea-Congolian/Sudanian region. |
英文关键词 | benin climate change climate reconstruction dendroclimatic proxy dendrochronology ENSO Ivory Coast sea surface temperature tree rings West Africa |
类型 | Article |
语种 | 英语 |
国家 | Germany |
收录类别 | SCI-E |
WOS记录号 | WOS:000238352800002 |
WOS关键词 | NINO-SOUTHERN-OSCILLATION ; LONG-TERM GROWTH ; EL-NINO ; PTEROCARPUS-ANGOLENSIS ; FLOODPLAIN FORESTS ; SAHEL RAINFALL ; MANGROVE TREE ; RING ANALYSIS ; IVORY-COAST ; TIME SCALES |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/151598 |
作者单位 | (1)Max Planck Inst Limnol, Working Grp Trop Ecol, D-24302 Plon, Germany;(2)Nees Inst Biodivers Pflanzen, D-53115 Bonn, Germany;(3)Univ Rostock, Inst Biosci, Dept Bot, D-18051 Rostock, Germany;(4)Univ Gottingen, Inst Agron & Anim Prod Trop & Subtrop, D-37077 Gottingen, Germany |
推荐引用方式 GB/T 7714 | Schoengart, Jochen,Orthmann, Bettina,Hennenberg, Klaus Josef,et al. Climate-growth relationships of tropical tree species in West Africa and their potential for climate reconstruction[J],2006,12(7):1139-1150. |
APA | Schoengart, Jochen,Orthmann, Bettina,Hennenberg, Klaus Josef,Porembski, Stefan,&Worbes, Martin.(2006).Climate-growth relationships of tropical tree species in West Africa and their potential for climate reconstruction.GLOBAL CHANGE BIOLOGY,12(7),1139-1150. |
MLA | Schoengart, Jochen,et al."Climate-growth relationships of tropical tree species in West Africa and their potential for climate reconstruction".GLOBAL CHANGE BIOLOGY 12.7(2006):1139-1150. |
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