Responses of permafrost to climate change and their environmental significance, Qinghai‐Tibet Plateau

@article{Cheng2007ResponsesOP,
  title={Responses of permafrost to climate change and their environmental significance, Qinghai‐Tibet Plateau},
  author={Guodong Cheng and Tonghua Wu},
  journal={Journal of Geophysical Research},
  year={2007},
  volume={112}
}
[1] In this paper we summarize recent research in geocryological studies carried out on the Qinghai-Tibet Plateau that show responses of permafrost to climate change and their environmental implications. Long-term temperature measurements indicate that the lower altitudinal limit of permafrost has moved up by 25 m in the north during the last 30 years and between 50 and 80 m in the south over the last 20 years. Furthermore, the thickness of the active layer has increased by 0.15 to 0.50 m and… Expand

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References

SHOWING 1-10 OF 112 REFERENCES
RECENT DEGRADATION OF PERMAFROST IN CHINA AND THE RESPONSE TO CLIMATIC WARMING
With climatic warming, significant changes are occurring in the permafrost regions in China. On the QinghaiXizang Plateau, the southern limit of permafrost has been degrading at a rate of hundreds ofExpand
Accelerated thawing of subarctic peatland permafrost over the last 50 years
[1] In this study we provide a quantification of the main patterns of change of a subarctic peatland caused by permafrost decay monitored between 1957 and 2003. Up-thrusting of the peatland surfaceExpand
Prediction of permafrost distribution on the Qinghai-Tibet Plateau in the next 50 and 100 years
Intergovernmental Panel on Climate Change (IPCC) in 2001 reported that the Earth air temperature would rise by 1.4–5.8°C and 2.5°C on average by the year 2100. China regional climate model resultsExpand
Permafrost and Changing Climate: The Russian Perspective
TLDR
Results from mathematical modeling indicate that by the mid-21st century, near-surface permafrost in the Northern Hemisphere may shrink by 15%–30%, leading to complete thawing of the frozen ground in the upper few meters, while elsewhere the depth of seasonal thawed ground may increase on average by 15%"–25%, and by 50% or more in the northernmost locations. Expand
Variation of the Ground Temperature Field in Permafrost Regions along the Qinghai-Tibetan Railway
  • P. Wei
  • Environmental Science
  • 2002
Over 550 km roadbed of the Qinghai-Tibetan Railway is constructed in permafrost Regions. Analyzing the data of main observatories on permafrost regions in the Tibetan Plateau, it is found that theExpand
Thermal regimes and degradation modes of permafrost along the Qinghai-Tibet Highway
Permafrost on the Qinghai-Tibet Plateau (QTP) is widespread, thin, and thermally unstable. Under a warming climate during the past few decades, it has been degrading extensively with generally risingExpand
Impact of the anomalous thawing in the Tibetan Plateau on summer precipitation in China and its mechanism
The impact of the anomalous thawing of frozen soil in the late spring on the summer precipitation in China and its possible mechanism are analyzed in the context of the frozen soil thawing date dataExpand
Interaction between Permafrost and Desertification on the Qinghai-Tibet Plateau
The observed data of ground temperature and ground surface heat balance were used to analyze the interaction between permafrost and desertification on the Qinghai-Tibet plateau. The results showedExpand
Historical Overview of Permafrost Studies in China
Although soil freeze/thaw phenomena were reported centuries ago in the historical Chinese literature, systematic study of permafrost in China started in the 1950s. Permafrost research in China hasExpand
Permafrost Change and Its Effect on Eco-environment in the Source Regions of the Yangtze and Yellow Rivers
Based on 0cm, 5cm, 10cm, 15cm, 20cm, and 40cm thin-layer ground temperature data of five stations, thick-layer ground temperature data by borehole, and survey data in the period of 1980 to 1998,Expand
...
1
2
3
4
5
...