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A kind of method that utilizes microporous film to carry out roof greening

A microporous film and roof greening technology, applied in the field of building roof greening, can solve the problems of hidden dangers of pesticide residues, difficult long-term maintenance of vegetation layers, and inapplicability of existing buildings, etc., to meet the requirements of plant diversity and facilitate rapid germination and rooting, reducing the effect of soil water evaporation

Active Publication Date: 2017-05-10
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the roof greening methods of urban buildings mainly include garden roof greening, combined roof greening, lawn roof greening, etc. On the one hand, these methods are not applicable due to their complex structure, high load requirements on building roofs, and large labor costs. For a large number of existing buildings; on the other hand, when using green blankets or green lawns for roof greening, there are problems such as low seed germination rate, poor water retention and temperature control effect, and single plant species.
Chinese patent CN 104106460 A discloses a grass carpet for roof greening and its cultivation method and one-time lawn formation method. The grass blanket does not contain a growth substrate. Although it avoids plant diseases caused by growth substrate infestation or rot, it also has the following disadvantages First, the grass blanket consists of the first filter cotton layer, moisturizing cotton layer, second filter cotton layer, and planting layer, and the structure is relatively complicated; second, the early cultivation and maintenance procedures of the grass blanket are cumbersome, and there are hidden dangers of pesticide residues; Yes, the plant species are single, and the landscape effect is poor; Fourth, the vegetation layer is difficult to maintain for a long time due to the lack of continuous and effective nutrient supply; Fifth, the grass blanket needs to be manually moved.
[0004] Transported to the roof and then paved, labor-intensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The operation steps are as follows:

[0021] 1) Clean up the roof, including floating dust, oil stains, and other sundries;

[0022] 2) Waterproof the cleaned building roof and lay root-blocking waterproof membrane;

[0023] 3) Lay gravel and ceramsite on the surface of step 2), with a thickness of 3-4cm;

[0024] 4) Lay a microporous film on the surface of step 3); the thickness of the microporous film is 0.08mm, the water seepage rate is 1mm / min, and the micropore diameter is 3µm

[0025] 5) Lay growth substrate on the surface of step 4), the growth substrate formula is: peat: 1000 parts, purple mudstone: 600 parts, vermiculite: 450 parts, wheat bran: 100 parts, water retaining agent: 80 parts, disinfectant: 0.5 parts, compound fertilizer: 13 parts, rooting powder: 0.3 parts;

[0026] 6) In step 5), sow the seeds of white clover and Zoysia sinensis evenly on the surface, and the seeding rate is 20g / m 2 ;

[0027] 7) Atomize and water the surface in step 6) to sat...

Embodiment 2

[0033] The operation steps are as follows:

[0034] 1) Clean up the roof, including floating dust, oil stains, and other sundries;

[0035] 2) Waterproof the cleaned building roof and lay root-blocking waterproof membrane;

[0036] 3) Lay gravel and ceramsite on the surface of step 2), with a thickness of 3-4cm;

[0037] 4) Lay a microporous film on the surface of step 3); the thickness of the microporous film is 0.10mm, the water seepage rate is 1.5mm / min, and the micropore diameter is 5µm

[0038] 5) Lay growth substrate on the surface of step 4), the growth substrate formula is: peat: 900 parts, purple mudstone: 700 parts, vermiculite: 450 parts, wheat bran: 90 parts, water retaining agent: 90 parts, disinfectant: 0.7 parts, compound fertilizer: 13 parts, rooting powder: 0.5 parts;

[0039] 6) On the surface of step 5), evenly sow the seeds of Hibiscus, Begonia, and Sagegrass, with a seeding rate of 20g / m 2 ;

[0040] 7) Atomize and water the surface in step 6) to satu...

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Abstract

The invention provides a method for roof greening by using a microporous film. The operation steps include: 1) site cleaning; 2) waterproofing treatment; 3) laying gravel and ceramsite; 4) laying microporous film; 5) laying growth matrix ; 6) Sow plant seeds; 7) Atomize and water to saturation; 8) Lay microporous film and fix; 9) Post-care. The invention has the advantages of simple construction process, convenient later management, and can improve sustainable and effective nutrition for plant growth, can effectively inhibit water evaporation, improve the permeability of substrate, increase the germination rate of plant seeds, finally achieve effective roof greening, and improve the ornamental quality of roof landscape. , the purpose of increasing urban green space.

Description

technical field [0001] The invention relates to the technical field of building roof greening, in particular to a method for using a microporous film to carry out roof greening. Background technique [0002] With the acceleration of urbanization and the increase of urban population density, urban buildings also increase. Urban buildings are developing in the direction of multi-storey, high-rise, and high-density, and the urban green space is decreasing day by day, leading to the emergence of a series of problems such as ambient air pollution, traffic congestion, excessive noise, urban waterlogging, and heat island effect, and the urban ecological environment is constantly deteriorating. . [0003] The development and utilization of urban green roof space can expand the urban green area, increase the amount of green, improve the urban heat island and dry island effects, reduce building energy consumption, and alleviate the contradiction between construction land and green la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G9/02A01G1/00
CPCA01G9/021
Inventor 孙海龙李绍才李付斌
Owner SICHUAN UNIV
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