Degradation and local growth of “Xing'an-Baikal” permafrost responding to climate warming and the consequences

IF 10.8 1区 地球科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY
Zhongqiong Zhang , Miao Li , Qingbai Wu , Xintong Wang , Huijun Jin , Huie Chen , Di Ma , Ze Zhang
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引用次数: 0

Abstract

The “Xing'an-Baikal” permafrost is distributed in Eurasia's middle and high latitudes. It incorporates features observed in high-altitude and high-latitude permafrost, yet it possesses unique characteristics and is sensitive to climate and environmental changes. The characteristics of the “Xing'an-Baikal” permafrost are systematically summarized, including permafrost distribution, taliks, ground ice, active layer thickness, ground temperature, permafrost thickness, and both zonality and non-zonality patterns. Further, this study clarifies the changing characteristics of regional degradation and local growth of permafrost under climate warming and environmental changes. The significant changes occurring in the “Xing'an-Baikal” permafrost are assessed in terms of their important and ongoing impacts on regional water‑carbon cycles, ecological succession, landscapes and engineering in cold regions. The interchange between beneficial and adverse effects is revealed in the process of permafrost degradation. In the future, a comprehensive understanding of the degradation pattern of the “Xing'an-Baikal” permafrost necessitates strengthened regional surveys and long-term continuous monitoring. Model development should account for the unique characteristics of the “Xing'an-Baikal” permafrost and its environment changes, enhancing the accuracy of research on permafrost change and environmental evolution. Through the systematic and comprehensive elaboration of the mechanisms underlying synergistic permafrost-environment evolution, these efforts will provide a scientific basis for responding to climate warming and promoting sustainable regional development.

兴安-贝加尔湖 "冻土的退化和局部生长对气候变暖的响应及其后果
兴安-贝加尔 "冻土分布在欧亚大陆的中高纬度地区。它兼具高海拔和高纬度冻土的特征,但又具有独特性,对气候和环境变化十分敏感。本研究系统地总结了 "兴安-贝加尔湖 "冻土的特征,包括冻土分布、滑石、地冰、活动层厚度、地温、冻土厚度以及地带性和非地带性模式。此外,这项研究还阐明了在气候变暖和环境变化的影响下,冻土的区域退化和局部生长的变化特征。评估了 "兴安-贝加尔 "冻土发生的重大变化对区域水碳循环、生态演替、景观和寒冷地区工程的重要和持续影响。研究揭示了冻土退化过程中有利影响和不利影响之间的相互影响。今后,要全面了解 "兴安-贝加尔 "冻土的退化模式,必须加强区域调查和长期连续监测。模型开发应考虑 "兴安-贝加尔 "冻土及其环境变化的独特性,提高冻土变化和环境演化研究的准确性。通过系统全面地阐述冻土与环境协同演化的机理,为应对气候变暖、促进区域可持续发展提供科学依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Earth-Science Reviews
Earth-Science Reviews 地学-地球科学综合
CiteScore
21.70
自引率
5.80%
发文量
294
审稿时长
15.1 weeks
期刊介绍: Covering a much wider field than the usual specialist journals, Earth Science Reviews publishes review articles dealing with all aspects of Earth Sciences, and is an important vehicle for allowing readers to see their particular interest related to the Earth Sciences as a whole.
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