Vegetation planting mode capable of controlling water and soil loss of gangue hill reclaimed land

Abstract

The invention adopts a technical scheme of a vegetation planting mode capable of controlling water and soil loss of gangue hill reclaimed land for solving the technical problem. Shrub and herbaceous plant are planted in a hybrid manner for the downhill segment of the gangue hill reclaimed land, trees and shrubs are planted in the uphill segment in a mixed plantation manner, the shrub and herbaceous plant planted in a hybrid manner includes cynodon dactylon and lespedeza bicolor, and the trees and shrubs planted in a hybrid manner includes slash pine and sweet gum tree. The specific operation comprises the following steps: shaping and shape modification of gangue hill, covering earth and fertilizing, planting cynodon dactylon and lespedeza bicolor in the downhill segment of the shaped and modified gangue hill reclaimed land; and planting slash pine and sweet gum tree in a hybrid manner in the uphill segment. According to the invention, a mine lot gangue hill ecological vegetation remediation mode of 'hybrid planting of shrub and herbaceous plant in the downhill segment-mixed plantation of trees and shrubs in the uphill segment' is adopted, so as to effectively slow down the net flowin the mine lot slopes, slow down loss of soil nutrients of the region, and restrain water and soil loss of the gangue hill reclaimed land; the water and soil loss control method for the slop is lasting in effect and economical and practical.

Description

technical field [0001] The invention belongs to the scientific field of environmental restoration, and relates to an ecological restoration method of an abandoned coal mining area, in particular to a vegetation planting mode and a corresponding planting method for water and soil erosion control of a coal gangue hill reclamation land in a coal mine area. Background technique [0002] Coal has always been the main energy source in the country, and it still accounts for more than 65% of the primary energy. Coal is also one of the richer mineral resources in the country. The predicted reserves of coal resources in my country are 5.9 trillion tons, and all provinces in the country have coal reserves. However, domestic coal mines have a long history and high mining intensity. In addition, some coal mines are illegally produced and dug indiscriminately, ignoring the environmental protection in the process of coal mining. Many coal gangue and slag have piled up into mountains, formin...

AI Technical Summary

Problems solved by technology

[0004] At present, studies on the temporal and spatial distribution of slope erosion show that the runoff and sediment production on the upslopes washed by rainwater will aggravate the amount of erosion on the downslopes, and the water and soil loss on the downslopes is generally more serious than that on the upslopes. The existing ecological restoration technology for abandoned mining areas adopts a single arbor crown or a mixed planting model of shrubs and grasses, and plants are not planted reasonably according to the soil erosion and resource distribution of the coal gangue slope, and the ecological restoration effect is relatively poor. shorter duration

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