Planetary boundaries: Guiding human development on a changing planet
Planetary boundaries: Guiding human development on a changing planet
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DOI：
10.1126/science.1259855
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发表时间：
2015-02-13
期刊：
影响因子：
56.9
通讯作者：
Sorlin, Sverker
中科院分区：
文献类型：
--
作者：
Steffen, Will;Richardson, Katherine;Sorlin, Sverker
行星边界框架根据调节地球系统稳定性的内在生物物理过程为人类定义了一个安全的操作空间。在这里，我们根据专家研究团体的有针对性的投入和过去5年更普遍的科学进展，修订和更新了行星边界框架，重点关注基础生物物理科学。一些边界现在有两层方法，反映了跨尺度相互作用的重要性和支撑边界的区域一级过程的异质性。两个核心边界——气候变化和生物圈完整性——已经被确定，如果它们被严重和持续地越过，每一个都有可能将地球系统推向一个新的状态。
The planetary boundaries framework defines a safe operating space for humanity based on the intrinsic biophysical processes that regulate the stability of the Earth system. Here, we revise and update the planetary boundary framework, with a focus on the underpinning biophysical science, based on targeted input from expert research communities and on more general scientific advances over the past 5 years. Several of the boundaries now have a two-tier approach, reflecting the importance of cross-scale interactions and the regional-level heterogeneity of the processes that underpin the boundaries. Two core boundaries-climate change and biosphere integrity-have been identified, each of which has the potential on its own to drive the Earth system into a new state should they be substantially and persistently transgressed.