[Objective] The problems of vegetation degradation

difficulty in vegetation construction

poor water retention

and soil erosion in high and steep slope areas was studied to provide new ideas and reference for ecological restoration of high and steep slopes in semiarid regions.[Methods] Three types of vegetation construction technique were considered:anchorage frame planting bag tiling method (plot A)

anchorage frame planting bag terrace method (plot B)

and anchor cable frame terrace method (plot C). These three techniques were used to solve the problems of vegetation construction in the region and maintain the safety of construction and operation.[Results] ① The maximum vegetation coverage was 85% in plot A

and the plant species and number were highest. The coverages of plot B and plot C were 60% and 12%

respectively. ② The soil moisture content of soil layers between 0 and 20 cm was as follows:B (7.72%) > A (7.20%) > C (4.03%). At 0-2 cm layer

the soil moisture content followed A (5.82%) > B (3.95%) > C (2.88%)

and at 2-10 cm and 10-20 cm layers

it was B > A > C. ③ The soil bulk density of soil layers at 0-20 cm was A (1.18 g/cm3) < B (1.24 g/cm3) < C (1.25 g/cm3). At 0-10 cm

it was B (1.23 g/cm3) > C (1.19 g/cm3) > A (1.15 g/cm3)

and the bulk density was in a suitable state. At 10-20 cm

it was A (1.21 g/cm3) < B (1.25 g/cm3) < C (1.31 g/cm3)

and the C area was in a tight state. ④ The order of soil erosion modulus was A (3 078 t/km2·a) < B (3 579 t/km2·a) < C (4 556 t/km2·a).[Conclusion] The construction technology of the anchorage frame planting bag tiling method can significantly improve vegetation growth

reduce soil erosion

and develop ecological restoration.