不同地表条件下青藏公路对多年冻土的热影响差异研究
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Study on the diversities of thermal impacts of Qinghai-Tibet Highway on permafrost under different surface conditions
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图11. 2015—2021年多年冻土年平均地温总增幅及活动层厚度年平均增幅对比 |
Fig.11. Comparisons of the increase of the mean annual ground temperature and the active layer thicknesses from 2015 to 2021 |
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