Rapid identification of source material levels in coral sand ornithogenic sediments by reflectance spectroscopy

Rapid identification of source material levels in coral sand ornithogenic sediments by reflectance spectroscopy
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利用反射光谱法快速鉴定珊瑚砂鸟类沉积物中的源物质水平

DOI:
10.1016/j.ecolind.2012.05.004
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发表时间:
2012-12
影响因子:
6.9
通讯作者:
Wen-Qi Liu
Wen-Qi Liu
中科院分区:
环境科学与生态学2区
文献类型:
--
作者:
Li-Qiang Xu;Xiao-Dong Liu;Li-Guang Sun;Wen-Qi Liu

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鸟源沉积物是研究过去生态环境变化的理想材料。我们采集了南海西沙群岛的沉积物柱样。利用反射光谱技术重建了西沙群岛光进岛、金清岛、金音岛和甘泉岛沉积物中植物、鸟粪和珊瑚砂等物源物质的相对比例。反射光谱分析结果与传统化学分析结果的一致性表明,反射光谱可以作为反映鸟源珊瑚砂沉积物中源物质含量的理想指标。在我们的研究中还讨论了源物质从底部向顶部的沉积物芯的变化可能的影响。海鸟活动似乎是这些岛屿生态系统生态发展的核心。
Ornithogenic sediments are ideal materials for studying past eco-environmental changes. We collected sediment cores from Xisha archipelago of the South China Sea. The relative ratios of source materials (plant, guano and coral sand) of such sediments from Guangjin, Jinqing, Jinyin and Ganquan Islands in the Xisha archipelago, were reconstructed by reflectance spectroscopy. The consistence between the results obtained from reflectance spectroscopy and those obtained from traditional chemical analysis suggests that reflectance spectroscopy can be an ideal indicator for source material levels in the ornithogenic coral sand sediments. The possible implications of changes in source materials from the bottom toward top of the sediment cores are also discussed in our study. Seabird activities appear central to the ecological development of these island ecosystems.
西福尔山加德纳岛过去 8500 年的企鹅种群动态
DOI: 10.1017/s0954102009990332
发表时间: 2009-12-01
期刊: ANTARCTIC SCIENCE
影响因子: 1.6
作者:
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期刊: Acta Geologica Sinica ‐ English Edition
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作者:
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DOI: 10.1016/j.baae.2005.05.002
发表时间: 2006-03
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作者:
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DOI: 10.1111/j.1529-8817.2010.00890.x
发表时间: 2010-10-01
影响因子: 2.9
作者:
Hay, Kyra B.;Millers, Kimberley A.;Lovelock, Catherine E.
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