Pollen Data as a Temperature Indicator in the Late Holocene: A Review of Results on Regional, Continental and Global Scales
Pollen Data as a Temperature Indicator in the Late Holocene: A Review of Results on Regional, Continental and Global Scales
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DOI：
10.3389/feart.2022.845650
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发表时间：
2022-02
期刊：
影响因子：
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通讯作者：
Z. Rao;Yiping Tian;Kaiyue Guang;Shikai Wei;Haichun Guo;Zixian Feng;Lin Zhao;Yunxia Li
中科院分区：
文献类型：
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作者：
Z. Rao;Yiping Tian;Kaiyue Guang;Shikai Wei;Haichun Guo;Zixian Feng;Lin Zhao;Yunxia Li
全新世的温度历史引起了激烈的争论，代用的季节性效应和气候模型的敏感性都被认为是“全新世温度难题”的可能原因。然而，人类对陆地代用品的可能影响往往没有得到充分的考虑，特别是在全新世晚期。在回顾了区域、大陆和全球尺度上以花粉为基础和以花粉为主的温度记录的基础上，我们认为花粉可能是晚全新世温度变化的一个较差的指示器，这主要是由于人类活动加剧对陆地植被的影响。因此，我们建议应仔细评估人类对全新世陆地温度记录的可能影响，并建议从没有重大直接人类影响的地区获得更多的全新世温度记录，或者使用对人类影响不敏感的替代物来重建晚全新世气候。
The temperature history of the Holocene is intensely debated, with both proxy seasonality effects and climate model sensitivity being proposed as possible reasons for the “Holocene temperature conundrum”. However, possible human impacts on terrestrial proxies are often not adequately considered, especially for the late Holocene. Based on a review of pollen-based and pollen-dominated temperature records on regional, continental and global scales, we propose that pollen may be a poor indicator of temperature change in late Holocene, mainly as a result of the impacts of intensified human activities on terrestrial vegetation. Thus, we suggest that possible human impacts on terrestrial Holocene temperature records should be carefully evaluated; and also that more Holocene temperature records are obtained from areas without significant direct human impacts, or that proxies that are insensitive to human impacts are used for late Holocene climatic reconstruction.