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Constructed wetland system for river and floodplain

An artificial wetland system and a technology for artificial wetlands, which are applied in the field of comprehensive water environment improvement, can solve problems such as unsuitable construction of artificial wetlands, and achieve the effects of reducing wind and sand sources, preventing sediment accumulation, and reducing exposed areas.

Pending Publication Date: 2022-07-29
青岛冠中生态股份有限公司
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Problems solved by technology

[0006] Aiming at the problem that the existing artificial wetlands are not suitable for construction in Jiangxinzhou and floodplains

Method used

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  • Constructed wetland system for river and floodplain

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Embodiment Construction

[0024] Hereinafter, the present invention will be specifically described through exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially combined in other embodiments without further recitation.

[0025] A constructed wetland system for Jiangxinzhou and floodplains, see figure 1 , including steps:

[0026] 1), the constructed wetland is set as a second-level ladder type, wherein, the first-level ladder is an emergent plant planting area, and the second-level ladder is a mixed planting area of ​​shrubs and grasses;

[0027] 2) A sand settling device is set on the outside of the first step of the constructed wetland;

[0028] 3), spray the anti-erosion planting matrix layer of 3-5cm on the surface of the constructed wetland area;

[0029] 4), according to the local climatic and environmental conditions, select the plants of the emerging plant planting area and the mixed planting area of ​​arbor, shr...

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Abstract

The artificial wetland system mainly comprises the following contents: 1) an artificial wetland is set to be in a two-stage step type, the first-stage step is an emergent aquatic plant planting area, and the second-stage step is a shrub and grass mixed planting area; (2) arranging a sand setting device on the outer side of a first-stage step of the constructed wetland; (3) spraying an anti-erosion planting substrate layer with the thickness of 3-5cm on the surface of the constructed wetland area; 4) respectively selecting plants in the emergent aquatic plant planting area and the arbor-shrub-grass mixed planting area according to local climate environment conditions; and 5) mixing seeds into the matrix, and spraying the mixture on the surface of the matrix layer in the corresponding area to form a seed layer with the thickness of 2cm. The artificial wetland effectively solves the problems that sediment accumulation is easily caused and plants are difficult to preserve when an artificial wetland technology is applied to the river and the flood plains, reduces the exposed area of the river and the flood plains in the dry season, reduces a sand wind source, prevents sediment accumulation from further expanding the river and the flood plains, and realizes ecological restoration.

Description

technical field [0001] The invention belongs to the technical field of comprehensive water environment improvement, and in particular relates to a constructed wetland system in Jiangxinzhou and floodplains. Background technique [0002] Changes in the water level in the middle reaches of the Brahmaputra lead to dynamic changes in the river course, causing Jiangxinzhou and floodplains to be exposed in winter and spring, forming seasonal sand sources. At the same time, during the wet season, the water flow in the wide valley section carries a lot of sediment, which continuously accumulates in the Jiangxinzhou and floodplains, further aggravating the regional sandstorm disaster. By constructing artificial wetlands and vegetation in these areas, the water area in the dry season can be increased, the vegetation coverage of Jiangxinzhou and floodplains can be improved, and the exposed area of ​​Jiangxinzhou and floodplains can be reduced. [0003] Chinese patent CN104790340A disc...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F3/32
CPCC02F3/32C02F2203/006C02F2301/08C02F2103/007C02F2001/007
Inventor 李春林臧小龙封姣车业琦曹志泉韩征罗银生
Owner 青岛冠中生态股份有限公司
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