Study on the Application of Vegetation Protection and Ecological Restoration Technology in Stone Slope

Taking the vegetation protection and greening project of the slopes of Yunan and Jigang quarry in Shenzhen as an example, the ecological restoration effect of the slope vegetation protection is evaluated through the application of vegetation greening protection technology of different soil quality and grade slope as well as the results of slope runoff sand content test and vegetation coverage rate survey.The result shows that:(1) Net planting grasses by spraying sowing technology has an excellent effect on the green protection and ecological restoration of steep soil slope and gentle rock slope, and the vegetation coverage rate is as high as 96%; Geocell external-soil spraying seeding technology has a very good effect on the green protection and ecological restoration of gentle soil slope, and the vegetation coverage rate is up to 99%; The planting slot technology is suitable for green protection and ecological restoration of high and steep rock slope in the quarry, and the vegetation coverage rate is up to 80%. (2) The runoff sand content decreases significantly after the slope is afforested, and the vegetation afforestation reduces the soil erosion by intercepting rain water and fixing soil by roots. (3) Drip-irrigation system is used in slope vegetation protection to achieve the purpose of energy saving, environmental protection and natural landscape integration.