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Spatiotemporal changes of annual freezing/thawing index of seasonally frozen soil in Jilin Province

Jingquan REN, Yuxi LIU, Dongni WANG, Liang WANG, Yue SUN, Chunming GUO, Qi LI

冰川冻土 . 2020, (2): 430 -438 . DOI: 10.7522/j.issn.1000-0240.2020.0035