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Ecological buffer zone with side-mounted bent wetland pond vegetation, and construction method of ecological buffer zone

A buffer zone and ecological technology, applied in the field of water environment ecological management engineering, can solve problems such as single function, and achieve the effect of simple technical implementation, low cost, and no need for fine management

Active Publication Date: 2020-11-10
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These technologies have played a certain role in the treatment of rivers and lakes, but in the long run, the existing ecological buffer zone technology still has the following defects: (1) The above-mentioned buffer zone design is only for the control method of upper land pollutant input, and does not The upper land, surrounding tributaries, and lakes are regarded as an overall ecosystem, and the migration and transformation of pollutants occurs in the entire ecosystem, so pollutant removal must consider restoration methods from the perspective of the entire system; (2) Existing ecological buffers The setting of the belt can only achieve the purpose of removing pollutants through the configuration of plants or the combination of collection ponds and plants at different elevations
However, this technology is generally applied to the water diversion treatment of a single river or lake, and has a single function. There is no data showing that it can be used in combination with water collection ponds and plant belts to build ecological buffer zones.
The traditional ecological buffer zone is only for the three-dimensional collocation of different plants, or for the engineering transformation of the soil structure and slope of the coastal zone.

Method used

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  • Ecological buffer zone with side-mounted bent wetland pond vegetation, and construction method of ecological buffer zone
  • Ecological buffer zone with side-mounted bent wetland pond vegetation, and construction method of ecological buffer zone
  • Ecological buffer zone with side-mounted bent wetland pond vegetation, and construction method of ecological buffer zone

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Embodiment 1 Ecological buffer zone A

[0064] The embodiment of the present invention provides an ecological buffer zone A, specifically refer to figure 1 , figure 2 , image 3 , Figure 4 illustrate.

[0065] The whole is a cascade structure, and the moisture-resistant plant belt, the curved wet zone next to it, the moisture-loving plant belt, the water collection pond, and the natural wet zone are arranged sequentially from the upper end to the lower end of the cascade structure.

[0066] Wherein, the slope of the cascade structure is less than 15°, and the slope of the wet-loving plant zone is less than 10°; specifically, the slope of the cascade structure is 5-10°, and the slope of the wet-loving plant zone is 2-5°; The slope of the structure is 10-15°, and the slope of the moisture-loving plant belt is 5-10°.

[0067] The water in the side curved wetland is diverted from the tributary, and a regulating dam is built on the tributary and the side curved wetlan...

Embodiment 2

[0072] Embodiment 2 Ecological buffer zone B

[0073] The embodiment of the present invention provides another ecological buffer zone B, which will be described on the basis of Embodiment 1.

[0074] Plant at least 2 species of grass, reed, metasequoia, Zhongshan fir, plantain, weeping willow, and maple poplar in the moisture-tolerant plant zone.

[0075] Plant at least one species of cattail and water spinach in the moisture-loving plant zone.

[0076] At least one species of emergent plants such as lotus, canna, calla lily, cattail, centipede, wild rice stem, water onion, calamus and pikegrass is planted in the natural wetland.

[0077] Emergent and submerged plants are planted in the water collection pond, and the emergent plants are selected from at least one of lotus, canna, calla lily, cattail, celery, wild rice stem, water onion, calamus, and barracuda.

[0078] For the submerged water plants, at least one of hornwort, black algae, eye spinach, foxtail algae, and bitt...

Embodiment 3

[0079] Embodiment 3 Construction of large-scale lake reservoir ecological buffer zone

[0080] Select a large lake reservoir with multiple tributaries entering the lake, and delineate and build an ecological buffer zone area: select a land area with heavy non-point source pollution on the upper part of the lake reservoir and within 500-1000m from the maximum water level of the lake reservoir as an ecological barrier area. In the construction area of ​​the ecological buffer zone, the cascade structure of the moisture-resistant plant belt, the curved wet zone next to it, the moisture-loving plant belt, the water collection pond, and the natural wetland zone are arranged in sequence from far to near the shore. The slope of the entire cascade structure is less than 15°, and the slope of the moisture-loving plant belt is less than 10°.

[0081] (1) Moisture-tolerant plant zone: plant at least two species of grass, reed, metasequoia, Zhongshan fir, plantain, weeping willow, and mapl...

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Abstract

The invention belongs to the field of water environment ecological management engineering, and relates to a lake ecological restoration technology, particularly to an ecological buffer zone with side-mounted bent wetland pond vegetation, and a construction method of the ecological buffer zone. The ecological buffer zone is of a step structure, and is sequentially provided with a moisture-resistantplant zone, a side-mounted bent wetland zone, a hygrophilous plant zone, a water collecting pond and a natural wetland zone from the upper end to the lower end of the step structure. According to theinvention, the vegetation ecological buffer zone with the side-mounted bent wetland pond has the effects of absorbing branch pollutants and upper land and ground source pollutants, also has a landscape effect, and is also suitable for water level change, and the influence of natural water level expansion elimination on the side-mounted bent wetland zone, the water collecting pond and vegetation is relatively small.

Description

technical field [0001] The invention belongs to the field of water environment ecological treatment engineering, and relates to a lake ecological restoration technology, in particular to an ecological buffer zone with vegetation in curved wetland ponds and a construction method thereof. Background technique [0002] With the rapid development of urbanization and the intensification of human activities, many lakes in my country have been polluted to varying degrees, and lake restoration is imminent. The ecological buffer zone is to set up an ecological barrier area in a certain area at the junction of rivers, lakes and land. Utilize the adsorption and decomposition of plants in the buffer zone to reduce the entry of nutrients from non-point source pollution into the river, form the last line of defense to control non-point source pollution, and achieve the purpose of protecting and improving water quality. At the same time, it also beautifies the ecological landscape of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32
CPCC02F3/32C02F3/322C02F3/327C02F2103/007C02F2203/006
Inventor 刘志梅吴胜军马茂华吕明权姜毅王小晓张友金
Owner CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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