Sponge green land suitable for mountain topography and building method of sponge greenbelt
A green space and terrain technology, applied in the field of sponge green space construction in mountainous cities, can solve problems such as waterlogging disasters, high flood risks, and ecosystems vulnerable to flood damage, and achieve the effect of strong penetration and large water retention
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[0037] In order to make the technical means, creative features, objectives and functions achieved by the present invention clearer and easier to understand, the present invention will be further explained below in conjunction with the drawings and specific implementations:
[0038] As a preferred embodiment of the present invention, please refer to the attached figure 1 With attached figure 2 :
[0039] Including 3°-8° gentle slope green space or 8°-15° steep slope green space, of which:
[0040] The 3°-8° gentle slope land has the following soil layer structure constructed sequentially from the center of the earth to the surface, such as figure 1 :
[0041] The first gravel layer 10, the thickness of the first gravel layer is 250mm-300mm, and the first perforated drainage pipe 11 is laid transversely along the slope in the first gravel layer;
[0042] The first coarse sand layer 12, the thickness of the first coarse sand layer is 200 mm;
[0043] The first planting soil layer 13, the ...
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