According to the topographic characteristic parameters of ephemeral gully at loess steep hillslopes,the mold of ephemeral gully shape at initial stage was made to quantify the change processes of ephemeral gully headcut advance,gully-wall collapse and channel deep-cutting in three stages(the beginning,middle and late stages) of ephemeral gully development.The results showed that different stages of ephemeral gully development corresponded to different ephemeral gully erosion process.In the beginning stage o...
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