A kind of tail sand dam phytoremediation cultivation method

Abstract

The invention discloses a tailing dam plant remediation cultivation method. The method includes the following steps of 1, tailing quality analysis and evaluation; 2, multifunctional container nursery; 3, transplanting; 4, management after transplanting. Compared with the prior art, the tailing dam plant remediation cultivation method has the advantages that the plant remediation cultivation method is used for a mine lot tailing dam, land preparation cost can be effectively reduced, and the plant cultivation survival rate can be increased; the method can more efficiently achieve the ecological remediation effect on a mine lot tailing pond, by means of the method, the survival rate is 80% higher than the survival rate achieved by existing conventional cultivation, and the survival rate is 90% or above.

Description

technical field [0001] The invention relates to a plant cultivation method, in particular to a tail sand dam phytoremediation cultivation method, and belongs to the technical fields of environment and forestry. Background technique [0002] The tailing sand dam in the mining area is a sand dam formed by the sedimentation and accumulation of wastes formed by low-quality ore sections and concentrate residues after mining and sorting of high-grade ore or rough ore. It loses its economic value due to heavy metal pollution. Due to the impact of mineral mining activities, while the original ecosystem of the tailing sand dam in the mining area is destroyed, the physical, chemical and biological properties of the soil will also change, the structure will deteriorate, and the organic matter content and nutrient elements necessary for plant production will also change. Deficiency, severe acidification or alkalization, and even heavy metal pollution. Therefore, its biological function...

AI Technical Summary

Problems solved by technology

[0003] However, due to the artificial reclamation and ecological reconstruction of the tailing dam in the mining area, the use of traditional artificial reclamation and guest soil to transform the surface soil is time-consuming and labor-intensive, and the cost is extremely high, and direct planting is difficult to survive and the cost of post-planting management is high. , leading to high investment in ecological restoration of the tailing dam in the mining area, which seriously restricts the process of artificially promoting the ecological restoration project of the tailing dam in the mining area

[0004] Since the first report on the ecological restoration of the mining area in 1986, there has been no report on the afforestation of the tailing sand dam in the mining area, and the main problem of afforestation in other types of abandoned land in the mining area is: the method of improving the soil and restoring the effect is more significant - backfilling Topsoil, but backfilling topsoil also has great limitations, mainly because this project involves a large number of projects such as topsoil collection, storage, and secondary pouring of soil, which requires high costs, inconvenient management, few soil sources, and difficult management after planting Big