气候变化研究进展 ›› 2020, Vol. 16 ›› Issue (2): 153-162.doi: 10.12006/j.issn.1673-1719.2019.244

• 海洋和冰冻圈变化与影响最新认知专栏 • 上一篇    下一篇

极地系统变化及其影响与适应新认识

效存德1,苏勃1,窦挺峰2,杨佼3,李姝彤3   

  1. 1 北京师范大学地表过程与资源生态国家重点实验室,北京 100875
    2 中国科学院大学资源与环境学院,北京 100039
    3 中国科学院西北生态环境资源研究院冰冻圈科学国家重点实验室,兰州 730000
  • 收稿日期:2019-10-23 修回日期:2019-12-16 出版日期:2020-03-30 发布日期:2020-04-01
  • 作者简介:效存德,男,教授,cdxiao@bnu.edu.cn
  • 基金资助:
    国家重点研发计划项目(2018YFC1406100);国家自然科学基金委项目(41690145);国家自然科学基金委项目(41671058);国家自然科学基金委项目(41425003)

Interpretation of IPCC SROCC on polar system changes and their impacts and adaptations

XIAO Cun-De1,SU Bo1,DOU Ting-Feng2,YANG Jiao3,LI Shu-Tong3   

  1. 1 State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing 100875, China
    2 College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100039, China
    3 State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences, Lanzhou 730000, China
  • Received:2019-10-23 Revised:2019-12-16 Online:2020-03-30 Published:2020-04-01

摘要:

地球北极和南极部分地区正在经历着以变暖和冰冻圈退缩为主要特征的显著变化,不仅深刻影响着当地生态环境和社会经济,而且具有半球乃至全球效应。IPCC在2019年9月发布的《气候变化中的海洋和冰冻圈特别报告》(SROCC)第三章对极地系统变化及其影响与适应做了系统评估,主要呈现了IPCC第五次评估报告(AR5)之后极地冰冻圈、海洋、生态和社会系统相互作用的最新科学认知,探讨了降低脆弱性和风险、增强适应性和恢复力的路径。文中对SROCC第三章进行扼要解读,主要内容包括:(1)极地海洋、海冰、积雪/冻土/淡水冰、冰盖与冰川等极地系统要素过去和未来变化及其影响以及极地与中低纬度天气气候之间的关联;(2)人类响应极地系统变化的策略和不足以及应对未来变化的不确定性;(3)当前加强极地恢复力建设的主要行动及其实施进展。

关键词: 极地系统, SROCC, 影响, 恢复力

Abstract:

The Arctic and part of Antarctic are experiencing significant changes characterized by warming and cryosphere’s shrinkage, which not only profoundly affect the local eco-environment and socio-economy, but also expand to the hemisphere and global scale. The special report on the ocean and cryosphere in a changing climate (SROCC) was issued on 25 September 2019, which systematically presented basic scientific understanding of changes in ocean, cryosphere, ecosystem and their interactions, analyzed the pathway to reduce vulnerability and risk, enhance adaptability and resilience. This article is a brief interpretation of the third chapter of the SROCC, including: (1) the changes in the polar system (such as polar oceans, sea ice, snow cover, freshwater ice, permafrost, polar ice sheets and glaciers) and their impacts on socio-ecological systems, and the links between polar systems and mid-latitude weather; (2) human response to polar changes, such as consequence of climate change, documented responses, key assets and strategies of adaptive and transformative capacity, anticipated future conditions and uncertainty, etc.; (3) assessment of practices and strategies for resilience building.

Key words: Polar system, SROCC, Impacts, Resilience

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