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首页> 外文期刊>Earth and Planetary Science Letters: A Letter Journal Devoted to the Development in Time of the Earth and Planetary System >Ecohydrological perspective of phytogenic organic and inorganic components in Greek lignites: a quantitative reinterpretation
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Ecohydrological perspective of phytogenic organic and inorganic components in Greek lignites: a quantitative reinterpretation

机译：希腊褐煤中植物性有机和无机成分的生态水文学前景：定量重新解释

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摘要

A consensus about the development of freshwater wetlands in relation to time and space is urgently required. Our study aims to address this issue by providing additional data for a fine-scaled comparison of local depositional settings of Greek mires during the Pliocene and Pleistocene. Lignite profiles exhibit phytogenic organic components (macerals) that have been used to investigate the past peat-forming vegetation structure and their succession series. The organic petrology of lignite samples from the opencast mines of Komanos (Ptolemais) and Choremi (Megalopolis) was achieved to assess the water supply, wetland type, nutrient status and vegetation physiognomy. A holistic approach (a study ecosystems as complete entities) was carried out for a paleoecological reconstruction of the mires. Huminite, liptinite and inertinite were traced by means of their chemical and morphological differences together with the morphogenic and taphonomic affinities. The problem of combining independent information from different approaches in a multivariate calibration setup has been considered. Linear regression, non-metric multidimensional scaling and one-way analysis of variance tested the occurrence of palynological and petrological proxies. Although the lignite formation and deposition are less related to humid periods than expected, the resulting differences occurring in the reconstructed development stages appear to be related to astronomically forced climate fluctuations.
机译：迫切需要就时间和空间方面就淡水湿地的发展达成共识。我们的研究旨在通过提供额外的数据，对上新世和更新世期间希腊泥潭的局部沉积环境进行精细比较，以解决这一问题。褐煤剖面显示出植物性有机成分（宏观成分），这些成分已用于调查过去形成泥炭的植被结构及其演替序列。通过对Komanos（托勒迈斯）和Choremi（Megalopolis）露天矿的褐煤样品进行了有机岩石学研究，以评估其供水，湿地类型，养分状况和植被地貌。进行了整体方法（将生态系统作为一个完整的实体进行研究）来进行泥潭的古生态重建。通过化学和形态学差异以及形态和亲和力来追踪腐殖质，锂质沸石和惰质沸石。已经考虑了在多元校准设置中组合来自不同方法的独立信息的问题。线性回归，非度量多维标度和方差的单向分析测试了古生物学和岩石学代理的发生。尽管褐煤的形成和沉积与潮湿时期的关系比预期的要少，但是在重建发展阶段出现的结果差异似乎与天文学强迫的气候波动有关。

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