Method for restoring mine matrix and greening by utilizing microalgae artificial biological crusts

Abstract

The invention discloses a method for restoring a mine matrix and greening by utilizing microalgae artificial biological crusts, which comprises the following steps of: A, in a mine reclamation area in which plants are difficult to grow, selecting sand, transporting the sand to a region to be repaired and paving the sand; B, planting grasses to carry out greening, i.e. selecting herbaceous plants growing in a mine to plant; C, carrying out shrub greening, i.e. using salix psammophila, artemisia songarica schrenk, caragana microphylla and astragalus adsurgens which grow in drought-resistant regions, selecting poplar, oleaster, pines and cypress which belong to arbor, and planting shrub such as salix psammophila; D, carrying out artificial crust treatment; E, carrying out watering maintenance; and F, checking the microalgae biological crusts, wherein the step D of carrying out artificial crust treatment comprises a step a of selecting an algae type, a step b of preparing algae culture solution and a step c of culturing algae; and the step c of algae culture comprises the following steps of: (1) primary culture, (2) secondary culture, (3) tertiary culture, (4) culture of a runway-type impeller stirring and circulating culturing pool, (5) biomass collection of the algae and (6) inoculation of the microalgae artificial biological crusts. The method is easy to implement and is convenient to operate; and an effective method is provided for mine restoration, ecological restoration and improvement on the ecological environment.

Description

technical field [0001] The invention relates to the technical field of mine reclamation ecological restoration and improvement of ecological environment, and more particularly relates to a method for repairing mine matrix and greening by using microalgae artificial biological crust. It is suitable for repairing mine substrates that are difficult to be suitable for plant growth and artificially inoculating microalgae on the substrate after mine reclamation to produce biological crusts on the surface, suppress dust, and plant grass and shrub (arbor) plants for greening. Ecological restoration after mine reclamation. Background technique [0002] China is rich in mineral resources and has a complete range of minerals. It is the third largest mining country in the world, and its total mineral resource reserves account for 14.64% of the world's total. As of 2005, there were 126,695 non-oil and gas mining enterprises in the country, including 23,901 energy mining enterprises, 10,...

AI Technical Summary

Problems solved by technology

In the current construction method, the seeds of grass, shrubs, and trees are generally sown at the same time, but the germination time of these three types of plants is different. Herbs can emerge in four to five days. If too many grass seeds are added, the grass will grow. If it is too dense, there will be no ecological niche for shrubs, and it will also affect the germination of shrub and tree seeds.