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欧亚现代花粉数据库2 (EMPD 2;Davis等,2020) 的一个准备使用的版本,用于古气候重建
Jena Zumaque1, Anne de Vernal1, Bianca Fréchette1
1GEOTOP - Centre de recherche en géochimie et géodynamique, Université du Québec à Montréal, Montréal, Canada.
Data in brief
|June 16, 2025
概括
古气候重建需要兼容的花粉数据. 这项研究介绍了90个类型的同质化的欧亚现代花粉数据库 (EMPD2),简化了准确气候建模的分类分辨率.
科学领域:
- 古气候学 古气候学
- 帕利诺学 (Palynology) 是一个临床学科.
- 四分学科学 四分学科学
背景情况:
- 基于花粉的古气候重建依赖于现代花粉数据,通常包含许多种类.
- 在现代和化石花粉样本之间调和分类分辨率对于准确的古气候重建至关重要.
- 欧亚现代花粉数据库版本2 (EMPD2) 是广泛的,但实际使用需要分类统一化.
研究的目的:
- 为古气候应用量身定制的EMPD2创建一个准备就绪,均的版本.
- 为了将EMPD2中的高数量的花粉种群减少到可管理和兼容的群体.
- 促进欧亚地区更有效,更准确的古气候重建.
主要方法:
- 将花粉种类系统地分组为属或家族级别.
- 识别和潜在的排除罕见的花粉种类.
- 将EMPD2综合数据集调整为一个简化的分类学框架.
主要成果:
- 现在可以获得EMPD2数据集的同质化版本.
- 新的数据集包括90种花粉种群,大大减少了原来的数量.
- 这一同质化的数据集是优化用于欧亚大陆的古气候重建.
结论:
- 这份同质化的EMPD2通过提供分类学上兼容的数据集,促进了古气候研究.
- 这个资源简化了使用现代花粉数据重建过去气候的过程.
- 缩小的分类学集合增强了EMPD2用于古气候建模和分析的可用性.
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