挪威卑尔根大学Ondej Mottl、Suzette G. A. Flantua等研究人员合作发现，过去18,000年中全球植被变化率加速增长。相关论文发表在2021年5月21日出版的《科学》杂志上。

通过使用1181个化石花粉序列的数据和新近开发的统计方法，研究人员发现，世界范围内的植被成分变化速率在4.6到2.9万年前开始加速，这在过去18,000年中的规模和范围都是全球前所未有的。晚期全新世的变化速率等于或超过所有大洲的冰消速率，这表明人类对陆地生态系统的影响甚至超过了上一次冰消的气候驱动型转变。过去一个世纪以来，生态数据集中显示的生物多样性变化加速加速始于几千年前。 

据了解，在过去的18,000年中，全球植被的变化首先是伴随着最后一次冰消的气候变化，然后是人类压力的增加。然而，人们对全球植被变化速率的大小和模式知之甚少。

附：英文原文

Title: Global acceleration in rates of vegetation change over the past 18,000 years

Author: Ondej Mottl, Suzette G. A. Flantua, Kuber P. Bhatta, Vivian A. Felde, Thomas Giesecke, Simon Goring, Eric C. Grimm, Simon Haberle, Henry Hooghiemstra, Sarah Ivory, Petr Kune, Steffen Wolters, Alistair W. R. Seddon, John W. Williams

Issue&Volume: 2021/05/21

Abstract: Global vegetation over the past 18,000 years has been transformed first by the climate changes that accompanied the last deglaciation and again by increasing human pressures; however, the magnitude and patterns of rates of vegetation change are poorly understood globally. Using a compilation of 1181 fossil pollen sequences and newly developed statistical methods, we detect a worldwide acceleration in the rates of vegetation compositional change beginning between 4.6 and 2.9 thousand years ago that is globally unprecedented over the past 18,000 years in both magnitude and extent. Late Holocene rates of change equal or exceed the deglacial rates for all continents, which suggests that the scale of human effects on terrestrial ecosystems exceeds even the climate-driven transformations of the last deglaciation. The acceleration of biodiversity change demonstrated in ecological datasets from the past century began millennia ago.

DOI: 10.1126/science.abg1685

Source: https://science.sciencemag.org/content/372/6544/860