Matrix material and restoration method for ecological restoration of gangue dump of mining area

Abstract

The invention provides a matrix material and restoration method for ecological restoration of a gangue dump of a mining area. The matrix material consists of two parts, i.e., a seed germination layer and a root inducing layer and is mainly prepared from loam, acidified coal gangue, inorganic nonmetallic minerals, plant fibers, a water retention agent, an agglomerating agent, a disinfectant, a compound fertilizer, a seed mixture and the like. The matrix material has the characteristics of water retention, fertilizer retention, good stability, erosion resistance, easiness in plant establishment and the like; and by using wastes such as the coal gangue as main matrix materials, the consumption of imported soil can be effectively lowered, the soil environment of abandoned mines is improved, the environmental pollution is reduced, and the ecological restoration cost is reduced.

Description

technical field

[0001] The invention relates to an ecological restoration project, in particular to a matrix material for ecological restoration of gangue hills in mining areas and an ecological restoration method. Background technique

[0002] Along with coal mining construction, a large number of exposed gangue slopes are formed, which are prone to geological disasters such as landslides, collapses, and debris flows, and ecological governance is urgently needed. There is no soil for the normal growth and development of plants on the surface of the gangue hill slope, and the water and nutrients necessary for the growth and development of vegetation cannot be supplied normally. The key to the ecological restoration of the gangue hill slope is to create soil conditions on the slope surface, which can stably and continuously support plants. Growth provides nutrient and water security.

[0003] Existing ecological restoration of gangue hills in mining areas is mainly covered w...

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