Method of cyclic sustainable vegetation recovery for waste dump of grassland mining area
A technique of vegetation restoration and soil dumping, applied in botany equipment and methods, excavation, horticulture, etc., can solve the problems of no fundamental solution to vegetation restoration, no possibility of large-scale promotion, limited topsoil resources, etc. Achieve the effect of increasing rainwater utilization rate and plant survival rate, good ecological adaptability and reducing cost
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Embodiment 1
[0033] refer to figure 1, Slope top control area 1, plant mustard-type rape 2 in the area; add topsoil 10 in the steep slope control area 3, and have mesh covering material 12 to cover, then plant Caragana microphylla / Satawang 4 and Artemisia grandis 5; After adding gravel subsoil layer 11 in slope management area 6, lay netted covering material 12, then plant mustard type rape 2 in the early stage, plant Caragana microphylla / Satawang 4 and Artemisia grandis 5 in the later stage; After the stone bottom soil layer 11, a net-shaped covering material 12 is laid, and mixed pasture grass 8 is planted; the above-mentioned steep slope control area, the junction of the middle slope control area and the gentle slope control area are provided with a rainwater collection pipe 9; after collecting rainwater, it flows into the sump 13; the sump 13 The rainwater within is used to irrigate the plants in the plant breeding base 14 required for slope surface management in the dry season.
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Embodiment 2
[0042] In 2007, it was practiced in the west dump of Ulantuga Coal Mine in Xilinhot City, Inner Mongolia. First of all, the topsoil and gravel subsoil stripped by mining in the mining area are placed separately. The gravel subsoil is mainly used to accumulate the slope body. After the slope body is accumulated, different treatment areas are delineated according to the different slopes of the slope.
[0043] In this case, the slope was measured on-site by the clinometer, and it was found that most of the slopes were between 25-30 degrees, so the treatment method followed the mode of the middle slope treatment area; while the slope at the foot of the slope was relatively gentle, about 10 degrees, so it was carried out according to the gentle slope treatment mode governance.
[0044] For the slope top treatment area, because the ground is relatively flat and mainly raw soil, mustard-type rape is mainly planted, and the seeding rate is 12 kg / mu, and the row-to-plant spacing is 15c...
Embodiment 3
[0056] In 2008, it was practiced in the south dump of Hongwen Group Open-pit Coal Mine in Xilinhot City, Inner Mongolia. First of all, through the on-site measurement of the slope, it is found that most of the slopes are 35 degrees, which are steep slopes, so the treatment is carried out according to the model of the steep slope control area. Only the slope at the foot of the slope is about 12 degrees, so the slope foot area is carried out according to the model of the gentle slope control area.
[0057] For the steep slope treatment area, first level the slope and fill small gullies, then lay topsoil on the slope with a thickness of 10cm, level the slope after laying, and then lay drainage pipes. The laying method and pipe specifications are the same as those described in Case 1. Afterwards, sow Satawang and Artemisia grandis on the slope, also adopting the mode of planting in alternate strips, row and plant distance 15cm, seeding rate 12 kg / mu (6 kg for each of the two plants...
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