Modern pollen vegetation relationships in a dry deciduous monsoon forest: A case study from Lonar Crater Lake, central India
Modern pollen vegetation relationships in a dry deciduous monsoon forest: A case study from Lonar Crater Lake, central India
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DOI：
10.1016/j.quaint.2015.01.046
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发表时间：
2015-06
影响因子：
2.2
通讯作者：
Nils Riedel;M. Stebich;A. Anoop;N. Basavaiah;P. Menzel;Sushma Prasad;D. Sachse;S. Sarkar;M. Wiesner
中科院分区：
文献类型：
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作者：
Nils Riedel;M. Stebich;A. Anoop;N. Basavaiah;P. Menzel;Sushma Prasad;D. Sachse;S. Sarkar;M. Wiesner
作为正在进行的研究的一部分，全新世湖泊沉积物的Lonar火山口湖（印度中部），在湖面沉积物和土壤样品的花粉组合进行了研究，以解开花粉-植被的关系，包括花粉在热带干燥落叶林植被的运输过程。此外，还将孢粉学结果与湖泊沉积物和植被的地球化学指标和空间特征进行了比较。所获得的数据揭示了强烈的差异，花粉组合和花粉浓度之间和研究诱捕媒体内。当地乔木植被在土壤样品中有充分的代表性，但在湖面沉积物样品中代表性较低。湖相花粉组合的组成主要受地表径流和河道径流的搬运方式的影响。除了我们的新数据的相关性可靠的解释化石花粉光谱提取Lonar沉积物岩心，本研究的结果是普遍的重要性，从热带湖泊档案的第四纪花粉组合的理解，以及为实施和选择合适的方法定量花粉为基础的环境重建在南亚和超越。
As part of ongoing research on Holocene lacustrine sediments of Lonar Crater Lake (central India), pollen assemblages in lake surface sediment and soil samples were studied to unravel pollen–vegetation relationships, including pollen transport processes in tropical dry deciduous forest vegetation. Furthermore, palynological results were compared with geochemical proxies and spatial features of the lake sediments and the vegetation. The obtained data reveal strong differences in pollen assemblages and pollen concentrations between and within the studied trapping media. Local arboreal vegetation is adequately represented in the soil samples, but is less represented in the lake surface sediment samples. The composition of the lacustrine pollen assemblages is mainly influenced by patterns of transport through surface and channel runoff. Besides the relevance of our new data for reliable interpretation of fossil pollen spectra extracted from Lonar sediment cores, the results of this study are of general importance for the understanding of Quaternary pollen assemblages from tropical lacustrine archives, as well as for the implementation and selection of suitable approaches for quantitative pollen based environmental reconstructions in south Asia and beyond.