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Article
A 7-ka climatic variability record inferred from peat bog sediments in the north of Bayan Har Mountains, northeastern Tibetan Plateau
Reconstructions of the Holocene (especially the mid-Holocene) climatic and environmental changes may serve as an analogue for future scenarios. About 7 ka of Holocene climatic variability in the north of Bayan...
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Article
Response of the soil hydrothermal process to difference underlying conditions in the Beiluhe permafrost region
The changes in hydrothermal dynamics under different underlying conditions are the important aspect of hydrological and ecological processes, and engineering stability in permafrost regions. This study monitor...
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Article
Recent changes in the active layer thickness across the northern hemisphere
To better understand the ecological and hydrological responses to climatic and cryospheric changes, the spatiotemporal variations in the active layer thickness (ALT) need to be scrupulously studied. Based on m...
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Article
Radiation and energy balance characteristics of asphalt pavement in permafrost regions
Solar radiation and energy balance between the atmosphere and asphalt pavement directly affect the heat absorption of the pavement, resulting in a temperature increase and possible thawing of the permafrost be...
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Article
Evolutions of water stable isotopes and the contributions of cryosphere to the alpine river on the Tibetan Plateau
The significant changes of cryosphere on the Tibetan Plateau (TP) are an important cause of concern for the huge population in Asia which depends on the glacier-permafrost feed rivers. Up to now, little is kno...
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Article
Period analysis and trend forecast for soil temperature in the Qinghai-**zang Highway by wavelet transformation
Soil temperature is a key factor in engineering design, construction and operation involved in permafrost engineering, and is closely associated with engineering stability. Here, the study shows that the wavel...
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Article
The effect of permafrost changes on embankment stability along the Qinghai–**zang Railway
After construction of the Qinghai–**zang Railway, the resultant heat exchange between soil and atmosphere caused changes in the thermal and mechanical stability of permafrost beneath the railway embankment. Mo...
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Article
Annual soil CO2 efflux in a wet meadow during active layer freeze–thaw changes on the Qinghai-Tibet Plateau
Soil CO2 efflux from an ecosystem responds to the active layer thawing depth (H) significantly. A Li-8100 system was used to monitor the CO2 exchange from a wet meadow ecosystem during a freeze–thaw cycle of the ...
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Article
Open AccessCorrelation of alpine vegetation degradation and soil nutrient status of permafrost in the source regions of the Yangtze River, China
The impacts of alpine vegetation degradation on the main soil nutrients in the permafrost were studied by the comparative analysis of typical plots in the source regions of the Yangtze River. It is found that ...
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Article
The influence of degradation of the swamp and alpine meadows on CH4 and CO2 fluxes on the Qinghai-Tibetan Plateau
CH4 and CO2 fluxes from a high-cold swamp meadow and an alpine meadow on the Qinghai-Tibetan Plateau, subject to different degrees of degradation, were measured over a 12-month period. Air temperature, soil tempe...