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

A coal gangue and vegetation technology, applied in botany equipment and methods, horticulture, application, etc., can solve the problems of poor ecological restoration effect, planting plants with reasonable distribution, and short benefit maintenance time, so as to slow down soil erosion and net flow , the effect of curbing the loss

Inactive Publication Date: 2019-04-26
江西省绿时代生态科技发展有限公司
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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

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: The present invention is implemented in the abandoned land of coal mining area

[0020] An example of the ecological restoration of the coal gangue hill in the abandoned coal mine of Tieshikou Town, Xinfeng County, Jiangxi Province, which specifically includes the following steps:

[0021] (1) Reshape the coal gangue hill with a slope of 38° in the abandoned coal mining area, use an excavator to carry out the strip preparation of the coal gangue hill, cut the slope and prepare the ground to the level of the strip, and form a platform shape with a width of 2m , the horizontal difference between the strips is 3m, the slope is 30°, and the coal gangue in the form of a terrace is transformed to realize the land reclamation of the gangue hill;

[0022] (2), on the surface of the coal gangue hill after the plastic shape transformation, cover 20cm of fly ash and clay mixture, the ratio of fly ash and clay is 3:7, use road roller to level and tamp, contain a large...

Embodiment 2

[0030] Embodiment 2: Method for controlling soil and water loss in coal gangue hills with different vegetation patterns

[0031] Select 7 sample plots on the experimental slope, and build an experimental plot in each sample plot, with an area of ​​20m×5m, surrounded by cement boards, and connect 2 runoff barrels under each plot for collection and measurement Runoff mud samples. See Table 1 for the characteristics of the sample plots in the study area.

[0032] Table 1 Sample characteristics of the research site

[0033]

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): A01G2/00
Inventor 陈鹏
Owner 江西省绿时代生态科技发展有限公司
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