Both Chunhua and Changwu county in Shaanxi province and the Mengriver watershed of Henan province

commended as the soil conservtionmodel on the forth national work conference of soil conservation

have an increase of erosion modulus in recent years

having been caused highattention

it must be solved substancialy. The lossing curves of increasing erosion are complex

mainly to be the deficiency of knowledge to thecontrol machanisms of the measures and the unwise management is onemajor reason. It is stressed that the control measures should beperformed for the goal to prevent soil erosion

otherwise

the managementis in plunder

resulting in being destroyed by selves.