Method for promoting growth of evergreen arbors in manganese ore degraded area

Abstract

The invention discloses a method for promoting growth of evergreen arbors in a manganese ore degraded area. The method comprises the following steps of: (1) digging planting pits in a manganese ore polluted and degraded bare land, transplanting rhus chinensis seedlings to the planting pits, filling the pit with polluted soil, and transplanting pouzolzia zeylanica nearby the rhizome base of the rhus chinensis; (2) when the rhus chinensis is grown to the height of 1.35 meters, pruning the lower branches of the rhus chinensis, transplanting evergreen cyclobalanopsis glauca, cinnamomum camphora and schima superba seedlings below the canopy of the rhus chinensis, wherein the distance between each planting point of the three arbor seedlings and the rhizome base of the rhus chinensis is 60 to 80centimeters, and when the arbor seedlings are transplanted, only the pouzolzia zeylanica at each arbor planting point is removed, and the pouzolzia zeylanica at other positions is reserved; and (3) collecting moss in the manganese ore polluted area, and covering the moss on the rhizome bases of the cyclobalanopsis glauca, cinnamomum camphora and schima superba seedlings. The method is convenient to take materials, simple and feasible.

Description

technical field

[0001] The invention relates to the field of ecological restoration, in particular to a method for promoting the growth of evergreen trees in manganese ore degraded areas. Background technique

[0002] The ecological system in the mining area is extremely degraded, the vegetation is seriously damaged, the soil erosion is serious, and the diffusion of heavy metals causes regional pollution. The ecological restoration of the mine degraded ecosystem is one of the priority issues in the implementation of the sustainable development strategy in my country. The primary task of ecological restoration in mining areas is to restore and rebuild damaged vegetation. Plants can fix and improve the soil, absorb and hold heavy metals, and prevent soil erosion and the spread of heavy metals. Cultivation of herbaceous plants has its limitations: herbaceous plants are short and have low biomass. In subtropical and temperate regions, many herbaceous plants die in winter, resu...