Effects of thaw slump on soil bacterial communities on the Qinghai-Tibet Plateau

CATENA, Journal Year: 2023, Volume and Issue: 232, P. 107342 - 107342

Published: July 31, 2023

Language: Английский

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Carbon dynamics shift in changing cryosphere and hydrosphere of the Third Pole

Earth-Science Reviews, Journal Year: 2024, Volume and Issue: 250, P. 104717 - 104717

Published: Feb. 17, 2024

The Third Pole (TP) is the largest alpine mountains on Earth. Its cryosphere shrinking and collapsing hydrosphere has subsequently changed under warming climate in recent decades, potentially affecting biogeochemical cycle. In particular, carbon cycle undergone dramatic changes, primarily because of alterations between hydrosphere. Carbon emissions from melting glaciers thawing permafrost can trigger change feedback. However, dynamics linked to changes TP still require clarification comprehensively. Herein, we reviewed current state stocks changing hydrosphere, focusing their variations permafrost, glaciers, related inland waters (headwater rivers, thermokarst lakes, glacial lakes). We also revealed release pathways into aquatic ecosystems atmosphere. Finally, recommended research priorities address cycling its possible future impacts TP. This review highlights importance change.

Language: Английский

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Advancements in Talik Research and a Novel Approach to Treatment for Talik beneath Subgrade

Journal of Cold Regions Engineering, Journal Year: 2024, Volume and Issue: 38(3)

Published: May 29, 2024

The warming trend presents a significant threat to the underlying permafrost. Talik formation is widely recognized as mechanism of permafrost degradation. Our research indicates that term talik has undergone long period development and gradually formed, referring unfrozen layers in already resulted extensive damage infrastructure built areas. Here, we provide brief overview current status talik. Accurately identifying challenge. However, by integrating multiple identification tools with technology, precision detection can be enhanced, resulting more accurate results. This paper discusses strengths weaknesses each approach. While numerical simulations enhance our understanding evolution process taliks, most focus on taliks beneath lakes. These emphasize impact subpermafrost groundwater flow lake surrounding thickness. Today, there scarcity relevant studies about cold zone engineering. presence exacerbates occurrence permafrost-related subgrade diseases, which are chronic irreversible. Additionally, it poses stability subgrades worsens settlement issues. Therefore, have analyzed causes distribution characteristics proposed novel measure for preventing controlling it. aims long-term service performance regions. modified polyurethane material injected into through grouting technology replacement. low thermal conductivity, strong water resistance, certain strength. It effectively improves hydrothermal environment conditions necessary formation, new or impeding their development. As result, enhanced.

Language: Английский

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Key processes of carbon cycle and sink enhancement paths in natural wetland ecosystems in China

Science China Earth Sciences, Journal Year: 2024, Volume and Issue: 67(8), P. 2444 - 2459

Published: July 8, 2024

Language: Английский

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Role of Suprapermafrost Groundwater Recharge in Dissolved Organic Carbon Dynamics of Thermokarst Lakes

Journal of Earth Science, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 21, 2024

Language: Английский

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