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中国东北兴安岭地区年冻融频次的分布规律
魏豪1,5(), 张泽2,1,3(), MELNIKOV Andrey4, 金豆豆1,5, 高思如1, 冯文杰1
Distribution law of annual freeze-thaw frequency in Xing’anling region of Northeast China
Hao WEI1,5(), Ze ZHANG2,1,3(), Andrey MELNIKOV4, Doudou JIN1,5, Siru GAO1, Wenjie FENG1

图5. 兴安岭地区各气候区年冻融频次的年际变化

Fig. 5. Interannual variation of annual freeze-thaw frequency of four climate zones in Xing’anling region: cold temperate humid area (a), middle temperate humid zone (b), middle temperate sub-humid zone (c) and middle temperate semi-arid zone (d)