In late spring, the combination of frozen subsoil, bare surface cover and thawing topsoil facilitated ephemeral gully growth. 该区春季冻融时期流域尺度上的浅沟侵蚀研究还较少，获得该时段浅沟侵蚀的资料非常重要。
A dynamic module damage model was built to predict the dynamic strength and maximum dynamic module of the silty clay after every freeze thaw cycle. 建立了动模量损失模型，能够预测每一次冻融循环后的动强度和最大动模量。
