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Landscape integrated intermittent wet-land rainwater reuse method

An intermittent, rainwater technology, applied in the field of gardens, can solve problems such as needs, increase construction costs, and difficulty in widespread promotion, and achieve the effect of easy promotion and simple methods

Inactive Publication Date: 2005-12-21
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] After searching the existing technologies, Liu Yebing, Xie Feng, and Zeng Weijia mentioned in the article "Discussion on the Application of Water and Rainwater Reuse Technology in Buildings" ("Engineering Design CAD and Intelligent Building", 2001, 02) that: for recycling Use the rainwater in the green land, use the engineering process of rainwater collection, treatment and reuse, and use pure engineering methods to solve ecological problems. The engineering process of rainwater collection and reuse usually diverts rainwater and collects it in a pre-built container , Such as water cellars, underground cisterns, etc. for reuse. This method is only an independent rainwater collection system, which often requires underground engineering facilities and increases construction costs, so many developers are not willing to do this (except in areas with severe water shortages) , it is difficult to widely promote

Method used

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  • Landscape integrated intermittent wet-land rainwater reuse method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] 1. First analyze the soil quality and precipitation of the construction site, such as figure 1 As shown, landscape integration intermittent wetland terrain design forms undulating micro-topographic landscape, forming several continuous low-lying lands. Relative to the ground level elevation +400mm, the slope of the terrain is 25 degrees;

[0014] 2. Replace the soil at the bottom of the micro-topographic valley with mixed soil. The mixed soil is composed of: 40% cinder + 40% local garden soil + 20% peat soil. The particle size of the cinder is 20-30mm, and the thickness of the mixed soil is 0.7 meters ;

[0015] 3. Selection of greening plants: The greening plants in low-lying areas are zoysia, planted by sowing.

[0016] It has been determined that when the daily average rainfall is <25mm (moderate rain), it can absorb 90% of the intermittent wetland rainfall; when the daily average rainfall is <50mm (heavy rain), it can absorb 50% of the intermittent wetland range ...

Embodiment 2

[0018] 1. First analyze the soil quality and precipitation of the construction site, such as figure 1 As shown, landscape integration intermittent wetland terrain design forms undulating micro-topographic landscape, forming several continuous low-lying lands. Relative to the ground level elevation +400mm, the slope of the terrain is 25 degrees;

[0019] 2. Replace the soil at the bottom of the micro-topographic valley with mixed soil. The mixed soil is composed of: 40% cinder + 40% local garden soil + 20% peat soil. The particle size of the cinder is 20-30mm, and the thickness of the mixed soil is 0.5 meters ;

[0020] 3. Selection of greening plants: The greening plants in low-lying areas are tall fescue, which are planted by sowing.

[0021] It has been determined that when the daily average rainfall is <25mm (moderate rain), it can absorb 90% of the intermittent wetland rainfall; when the daily average rainfall is <50mm (heavy rain), it can absorb 50% of the intermittent ...

Embodiment 3

[0023] 1. First analyze the soil quality and precipitation of the construction site, such as figure 1 As shown, landscape integration intermittent wetland terrain design forms undulating micro-topographic landscape, forming several continuous low-lying lands. Relative to the ground level elevation +400mm, the slope of the terrain is 25 degrees;

[0024] 2. Replace the soil at the bottom of the micro-topographic valley with mixed soil. The mixed soil is composed of: 40% cinder + 40% local garden soil + 20% peat soil. The particle size of the cinder is 20-30mm, and the thickness of the mixed soil is 0.6 meters ;

[0025] 3. Selection of greening plants: The greening plants in low-lying areas are Bermudagrass, which are planted by sowing.

[0026] It has been determined that when the daily average rainfall is <25mm (moderate rain), it can absorb 90% of the intermittent wetland rainfall; when the daily average rainfall is <50mm (heavy rain), it can absorb 50% of the intermittent...

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Abstract

The invention discloses a technique that recycles raindrop with a landscape integrated interval wet land, belonging to garden planting technique. By creating continuous up-and-down grassland while associates with circumstances, according to the landscape, soil properties and precipitation conditions, adding coal cinder in the soil for enhancing the land permeability and plant grass which is highly tough locally, the rain drop is absorbed in the soil ecologically. The invention can not only preserve water but also provide with a view for rest and play, achieving the rain drop recycling and landscape integration.

Description

technical field [0001] The invention relates to a method in the technical field of gardening, in particular to a method for recycling rainwater in an intermittent wetland integrated with landscape. Background technique [0002] The annual average annual rainfall in my country is 6.2 trillion cubic meters, and the average annual water supply is 5.5 trillion cubic meters. Among them, the water supply from surface water sources is about 80%, the water supply from underground water sources is 19.5%, and the water supply from other water sources (sewage treatment The reuse amount and the water supply of the rainwater harvesting project) are about 0.5%. Urban green space is an area with a large amount of permeable surface in the city. Plants retain a certain amount of rainwater through subsurface seepage and stagnation, but there is still a large amount of rainwater lost through surface runoff, and the function of urban green space to absorb and stagnate rainwater is not very good....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B11/00
Inventor 车生泉周琦
Owner SHANGHAI JIAO TONG UNIV
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