Ecological restoration method of waste dump vegetation

Abstract

An ecological restoration method of waste dump vegetation is provided, comprising the steps of leveling waste dump and sowing vegetation, wherein the specific steps are as follows: using tailings sands to fill gaps of crushed stones on the slope and plane of the waste dump; using mountain surface soil to cover the crushed stones till that the crushed stones are covered completely; irrigating the waste dump till that the mountain surface soil on surface of the waste dump is wet completely; sowing herbs on the slope of the waste dump; planting seabuckthorn in the middle of the slope; planting Robinia pseudoacacia seedlings on the lower part of the slope; planting cotton climbing plants at the root of the slope; planting Robinia pseudoacacia on the plane; and normally managing the vegetationon the other positions. The invention solves the problem that lots of the tailings are stacked, reduce usage amount of the soil and reduce engineering cost; different plants are planted on different positions of the slope of the waste dump; due to the optimal distribution method, the germination rate of the vegetation and survival rate of the seedlings are improved; the restoration effect of the waste dump vegetation is improved effectively and the ecological environment in the mine area is improved.

Description

technical field

[0001] The invention relates to an ecological recovery method for vegetation in a dump site, belonging to the field of ecological recovery in mining areas. Background technique

[0002] A waste rock dump is a dumping site for waste left over from mining development. It is composed of hard and compacted stones, sand and other substrates. Generally, the slope ratio of the waste rock dump is 1:1.3, and the width of the table is about 2.0m. According to the dump site The stacking height can generally be divided into 3-4 steps, and the vertical height of each step is about 20m. Dumps not only occupy a large amount of land and farmland, but also destroy plants and ecological landscapes. Due to mining activities in some mining areas, a large amount of land and farmland have been occupied for a long time, resulting in reduced or no harvest in farmland, and soil erosion and desertification in some mining areas are serious.

[0003] At present, my country's main mini...