The results show that the steep slope formed by dumped soil from construction sites has been eroded seriously and gives more sediment than natural steep slope.

Definition,characteristic and engineering significance of man-made soil;

This paper summarized the peculiarities of pedogenic processes of the major kinds of anthropogenic soils and analysed their main characteristics that can contribute to the increased storage of organic carbon in soils.

With large quantity of waste soil and residue piled up in the course of river and ditch way, water and soil loss both remarkably rose.

<Abstrcat>The authors summarized the reason of waste caused by highway construction in Jiangxi Province and analyzed waste soil and residue prevention and control technologies which composed by field choice of waste soil and residue,drainage engineering, slope protection engineering and vegetation rehabilitation.