Opportunities and applications of dendrochronology in Africa

Opportunities and applications of dendrochronology in Africa
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非洲树木年代学的机遇和应用

DOI:
10.1016/j.cosust.2013.10.011
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发表时间:
2014
影响因子:
7.2
通讯作者:
Sass-Klassen
Sass-Klassen
中科院分区:
环境科学与生态学2区
文献类型:
--
作者:
Gebrekirstos;Bräuning;Sass-Klassen

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参考文献

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亮点非洲的树木可能形成年轮并生长到多中心时代。树木生态学有助于重建气候趋势和大气环流模式。树木年轮可以填补生态系统生产力和水文循环方面的知识空白。它有助于验证气候模型,以改善气候情景。树木年轮分析可以补充异速生长模型以估计碳。部分由于严重缺乏工具气候数据,非洲气候的驱动因素、它们的相互作用和影响知之甚少。本文论证了树枝生态和稳定同位素技术的前景和应用,如重建气候变异性、趋势和大气环流模式,以填补非洲不同气候带在生态系统生产力和水文循环方面的知识空白。我们总结了树木年轮分析对气候和水文模型改进情景的验证的贡献,并确定了具有适应恶化气候条件的能力的农林复合物种。大量的非洲树种显示出一年一度的年轮,并可能达到数个世纪的年龄。为了推进非洲的树状年代学,需要在非洲大学和研究组织的能力建设方面作出合作努力。
HighlightsTrees in Africa may form annual rings and grow to multicentury age.Dendroecology helps to reconstruct climate trends and atmospheric circulation patterns.Tree rings can fill the knowledge gaps in ecosystem productivity and hydrological cycle.It contributes to validation of climate models for improved climate scenarios.Tree ring analyses can complement allometric models to estimate carbon.Partly due to severe lack of instrumental climate data, the drivers of the African climate, their interactions and impacts are poorly understood. The paper demonstrates the prospects and applications of dendroecological and stable isotope techniques, such as to reconstruct climate variability, trends and atmospheric circulation patterns, to fill the knowledge gap in ecosystem productivity and hydrological cycle in different climatic zones of Africa. We summarize the contribution of tree-ring analyses to validation of climate and hydrological models for improved scenarios, and to identify agroforestry species with the ability to acclimate to exacerbated climate conditions. A high number of African tree species shows datable annual tree rings and may reach multi century age. To advance dendrochronology in Africa, collaborative efforts in capacity building of African universities and research organizations are needed.
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发表时间: 2013-10-01
影响因子: 2.3
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影响因子: 3.7
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