The effects of soil freeze–thaw processes on water and salt
2021年2月16日 — Seasonally freeze-thaw (FT) processes affect soil salinisation in cold and arid regions. Therefore, understanding the mechanisms behind soil salinisation during winter and …
Impacts of seasonally frozen soil hydrothermal dynamics on the ...
2023年9月1日 — The freeze–thaw cycle over the surface seasonally frozen soil is an important soil hydrothermal dynamic process linking land surface processes and climatic changes in the cold regions.
Factors effecting the freeze thaw process in soils and reduction in ...
2019年1月13日 — This study first briefly introduces the distribution of seasonal frozen soil in China and the damage of soil after F-T. Then, on the one hand, it discusses the influencing trends of soil properties after freeze-thaw cycles (FTC) based on the different soil structure, compaction degree, moisture content, freezing temperature, and FTC times.
Degraded frozen soil and reduced frost heave in China due to …
2023年10月1日 — Permafrost degrades to seasonally frozen soil, and seasonally frozen soil to non-frozen soil. The dominant change in permafrost is shown in the increased ground temperature (TTOP) and reduced area.
Freezing and thawing characteristics of seasonally frozen ground …
2024年8月1日 — Seasonally frozen ground (SFG), which refers to ground that freezes and thaws annually, accounts for more than 50 % of the land area of China according to the geocryological regionalization and classification map of frozen soil in China (1:10,000,000) (https://www.ncdc.ac.cn).
Seasonal freezing-thawing process and hydrothermal ... - Springer
2021年10月24日 — The seasonally frozen soil has experienced four typical stages: unfrozen period, alternate freezing period, freezing period and alternate thawing period. The freezing-thawing process is characterized by unidirectional freezing and bidirectional thawing.
Freeze-thaw strength increases microbial stability to enhance …
2024年10月10日 — Through in-situ investigations on seasonal freeze-thaw processes in the active layer of permafrost in the Qinghai-Tibet Plateau, we found that microbial richness was higher and positively...
Seasonal frozen soil area frame beam anchor rod slope
2024年7月3日 — In response to the frequent accidents caused by freezing-induced deformation of anchor rod support structures in seasonal frozen soil areas, this study proposes a simplified calculation method. Based on the deformation coordination relationship of the slope frost heave soil under the constraint of the frame beam, the initial frost heave force ...
Response of changes in seasonal soil freeze/thaw state to climate ...
2016年10月8日 — Seasonal soil freeze/thaw state is sensitive to climate change. The area extent of soil completely frozen state is in decreasing with warming climate. Soil freeze/thaw cycle is highly correlated with air temperature. 1 Introduction.
A New Frozen Soil Parameterization Including Frost and Thaw …
2019年2月18日 — We examined the performance of the new model for simulating frozen soil ground in comparison to site observations and distribution maps for frozen soil. The FTF simulations agree well with values observed at both the D66 site for permafrost and the Hulugou site for seasonally frozen ground.