Defining the onset of the Anthropocene
Defining the onset of the Anthropocene
复制标题
定义人类世的开始
DOI：
10.1126/science.ade2310
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发表时间：
2022
期刊：
影响因子：
56.9
通讯作者：
S. Turner
中科院分区：
文献类型：
--
作者：
C. Waters;S. Turner
地球的地质历史被划分为年代地层单位，通过总结复杂的生物、地球化学和气候变化，这些单位区分了地球演化的各个阶段。在过去的一个世纪里，地球系统的许多组成部分发生了如此大的变化，以至于它们不再出现在全新世--代表过去∼11,700年的地质时代--的明显范围内。还有一些明显的地质遗迹值得确认为一个新的地质时代：人类世。人类世工作组是国际地层学委员会第四纪地层学小组委员会的一个工作组，它一直在努力确定人类世开始的确切时间，重点放在20世纪中叶左右。定义将需要确定沉积层或地层中的具体物理性质，以反映最近人口增加、前所未有的工业化和全球化以及对景观、气候和生物圈造成的变化的影响(1-7)。
Description Twelve sites are considered for defining the Anthropocene geological epoch Earth’s geological history is divided into chronostratigraphic units that distinguish phases in the planet’s evolution by summarizing complex biotic, geochemical, and climatic changes. Over the past century, many components of the Earth system have changed so much that they no longer occur within the ranges evident during the Holocene—the geological epoch that represents the past ∼11,700 years. There are also distinct geological traces that warrant recognition as a new geologic epoch: the Anthropocene. The Anthropocene Working Group (AWG), a task group of the Subcommission on Quaternary Stratigraphy (SQS) of the International Commission on Stratigraphy (ICS), have been working to decide precisely when the Anthropocene began, with a focus around the mid-20th century. The definition will need to identify specific physical properties in sediment layers, or strata, that capture the effects of recent increases in human population; unprecedented industrialization and globalization; and changes imposed on the landscape, climate, and biosphere (1–7).