Based on the arid

barren

precipitous ecological environmental conditions of expressway high and steep slope soil in the loess plateau of Shaanxi Province

the paper proposes some measures as follows: (1) to adopt the rainwater to superpose utilization and transposition locality utilization to raise the content of soil moisture of the terrace soil; (2) to lay the two-dimensional network cushion and geotechnological dose of rooms; (3) to reconstruct the organic fertilizer

and to raise the soil fertility; (4) to choose the suitable tree or grass species to native soil

and apply some technological measures in order to improve the afforest survival and preservable rate on high and steep slopes of the highways.