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首页> 外文期刊>Journal of quaternary science: JQS >Pollen-climate reconstruction from northern South Island, New Zealand ( 41 degrees S), reveals varying high- and low-latitude teleconnections over the last 16 000 years
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Pollen-climate reconstruction from northern South Island, New Zealand ( 41 degrees S), reveals varying high- and low-latitude teleconnections over the last 16 000 years

机译：新西兰南岛北部（南纬41度）的花粉气候重建揭示了过去16000年中不同的高纬度和低纬度遥相关度

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摘要

We present a 16 000-year vegetation and climate reconstruction from pollen and plant macrofossil records obtained at a small alpine lake in South Island, New Zealand (41 degrees S). The expansion of lowland forest taxa suggests a lifting of the altitudinal forest limits because of a warming pulse between 13 and 10k cal a BP and between 7 and 6k cal a BP, while their decline relative to upland forest taxa indicates cooling phases between 10 and 7k cal a BP and over the last 3000 years. The modern treeline was first established locally by 9.7k cal a BP. Forest persisted at the site until 3k cal a BP then disappeared from the record. Close correspondence between the temperature trends inferred from the pollen and macrofossil records and proxies from Antarctica and the Southern Ocean suggests a strong teleconnection between New Zealand and the Southern Hemisphere high-latitudes between 15 and 6k cal a BP. We note that the breakdown of this coupling, a cooling trend in Adelaide Tarn and the local disappearance of beech forest after 3k cal a BP occur during a period of increased frequency of El Ni (n) over tildeo events, suggesting an enhanced teleconnection with the low-latitudes during the late Holocene. Copyright (c) 2015 John Wiley & Sons, Ltd.
机译：我们介绍了从在新西兰南岛（41度）的一个高山小湖上获得的花粉和植物大化石记录得出的16000年植被和气候重建。低地森林分类单元的扩展表明，由于在13至10k cal a BP和7至6k cal a BP之间的变暖脉冲，海拔高度界限得到了提升，而相对于高地森林类群的下降表明在10至7k之间为冷却阶段。在过去的3000年中一直保持着BP。现代树线最早是由9.7k cal BP在当地建立的。森林一直持续到该地点，直到3k cal BP，然后从记录中消失。从花粉和大型化石记录以及南极洲和南大洋的代理推断的温度趋势之间的密切对应关系表明，新西兰与南半球的高纬度之间在BP 15至6k之间有很强的遥相关性。我们注意到，这种耦合的破坏，阿德莱德塔恩省的降温趋势和3k cal BP后山毛榉森林的局部消失发生在整个Elde（n）发生频率高于波浪的事件期间，这表明与全新世晚期的低纬度地区。版权所有（c）2015 John Wiley＆Sons，Ltd.

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