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首页> 外文期刊>International Journal of Biometeorology: Journal of the International Society of Biometeorology >Comparison of modern pollen distribution between the northern and southern parts of the South China Sea
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Comparison of modern pollen distribution between the northern and southern parts of the South China Sea

机译：南海北部和南部现代花粉分布比较

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摘要

The authors conducted a palynological analysis based on different number of air pollen samples for the northern and southern parts of the South China Sea, respectively, in order to give a reference to reconstruct the paleoclimate of the area. (1) Fifteen air pollen samples were collected from the northern part of the South China Sea from August to September 2011, and 13 air pollen samples were collected from the southern part of the South China Sea in December 2011. The pollen types were more abundant in the north than in the south. The total pollen number and concentration in the north was 10 times more than that in the south, which may be because of the sampling season. Airborne pollen types and concentrations have a close relationship with wind direction and distance from the sampling point to the continent. (2) Seventy-four samples were collected from surface sediments in the northern part of the South China Sea in the autumn. Thirty-three samples were collected from surface sediments in the southern part of the South China Sea in the winter. Pollen concentrations in the north were nearly 10 times higher than that in the south. This is because trilete spores are transported by rivers from Hainan Island to the sea and also by the summer monsoon-forced marine current. (3) Ten air pollen samples and 10 surface sediments samples were selected for comparison. The pollen and spores in the air were mainly herbaceous and woody pollen, excluding fern spores, having seasonal pollen characteristics. Pollen in the surface sediments were mainly trilete, Pinus, and herbaceous, and may also show a combination of annual pollen characteristics.
机译：作者分别针对南海北部和南部的不同数量的花粉样本进行了孢粉学分析，以便为重建该地区的古气候提供参考。 （1）2011年8月至2011年9月，从南海北部采集了15个空气花粉样本，2011年12月，从南海南部采集了13个空气花粉样本。花粉类型更为丰富。在北部比在南部。北部的总花粉数量和浓度是南部的10倍，这可能是由于采样季节所致。空气中花粉的类型和浓度与风向和从采样点到大陆的距离密切相关。 （2）秋季从南海北部的表层沉积物中收集了74个样品。冬季从南中国海南部的表层沉积物中收集了33个样品。北部的花粉浓度比南部高近10倍。这是因为Trilete孢子是通过河水从海南岛运送到海洋的，而且是通过夏季季风强迫的洋流运送的。 （3）选择10个空气花粉样本和10个表面沉积物样本进行比较。空气中的花粉和孢子主要为草本和木质花粉，蕨类孢​​子除外，具有季节性花粉特征。表层沉积物中的花粉主要是三叶草，松属和草质，也可能表现出年花粉特征的组合。

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