基于ERA5-LAND的中国东北地区近地表土壤冻融状态时空变化特征
岳书平, 闫业超, 张树文, 杨久春, 王文娟

Spatiotemporal variations of soil freeze-thaw state in Northeast China based on the ERA5-LAND dataset
YUE Shuping, YAN Yechao, ZHANG Shuwen, YANG Jiuchun, WANG Wenjuan
图7 中国东北地区不同冻融阶段发生天数变化速率分布
Fig. 7 Temporal variation rates of annual number of days for different freeze-thaw periods in Northeast China