CN104032706A - Method for constructing wetland type river channel - Google Patents

Method for constructing wetland type river channel Download PDF

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Publication number
CN104032706A
CN104032706A CN201410217698.2A CN201410217698A CN104032706A CN 104032706 A CN104032706 A CN 104032706A CN 201410217698 A CN201410217698 A CN 201410217698A CN 104032706 A CN104032706 A CN 104032706A
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river course
plant
river channel
builds
wetland
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CN201410217698.2A
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CN104032706B (en
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成水平
代嫣然
杨立华
唐孟煊
吴娟
向东方
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Tongji University
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Tongji University
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

The invention relates to a method for constructing a wetland type river channel. A natural gentle slope type retaining wall is constructed in a land directional area from the position above a normal water line to the top of a protection slope by using soil engineering materials, tree and shrub vegetation is planted, emergent aquatic plants are respectively planted in a bottomland area and a shallow water area of the river channel, floating-leaved plants and submerged plants are planted adjacent to the emergent aquatic plant area, and the transverse width of the planting area on each side is equal to or smaller than one fourth the width of the water area of the river channel. According to the method for constructing the wetland type river channel, the foundation with the novel soil engineering materials, the biological protection slope provided with the novel soil engineering materials as the foundation and covered by the tree and shrub vegetation, a bottomland wetland with emergent aquatic plant community as the main body and a bank zone with the floating-leaved plant and submerged plant communities as the main body are constructed respectively on the wetland type river channel, and a river channel biological system with the complete structure and function is formed. The method for constructing the wetland type river channel is capable of obviously improving river water quality, good river channel landscape can be created, and the living quality of city residents can be improved.

Description

A kind of method that builds wetland type river course
Technical field
The invention belongs to ecological engineering field, especially relate to a kind of method that builds wetland type river course.
Background technology
River course is a pith in the every infrastructure in city, is also the basis of urban development.River course has the region of enriching ecological functions and natural landscape as city, its view, leisure and ecological functions are more and more subject to affirming and paying attention to of people in recent years, and the planning in river course and area, riverfront has been included into the important component part of city ecology construction.Yet due to history, traditional city river builds mainly with controlling flood and draining flooded fields as main principle, is curved cut-off and channelization in river course, makes river course form unification, River Landscape is seriously deficient.Wherein, the minimizing of the lining cutting on riverbank, riverbed and riverside vegetation, not only blocked the mutual supply between surface water and groundwater, damaged healthy water-gas circulation, also destroyed habitat, the place that makes animals and plants lose existence and perch, reduced bio-diversity, and cut off aquatic organism chain, and cause disruption of ecological balance, cause the self-purification capacity in river greatly to reduce.In a word, this traditional river course building mode has not only destroyed Urban Natural ecoscape, has also damaged structure and the function of river channel ecology system health.Therefore, according to the multifarious requirement of natural ecosystems, build the river course that approaches natural state, seem particularly important and urgent.
In recent years, although people start to pay close attention to the ecological functions in river course, and have carried out a series of repairs to it, great majority research is single for channel revetment, riverbed, river course or river water body water quality are carried out restoration of the ecosystem, lack the construction process based on the complete ecosystem in river course.
Application number is that 201110121005.6 Chinese patent discloses and is suitable for the multidimensional filler ecological slope protection construction process that river course, villages and small towns is repaired, take ecology bag structure as support, protective slope structure is divided into spats district, low water level influence area, ordinary water level influence area, Si Ge region, extreme high water influence area, select the matrix adapting with each regional structure and function as filler, and recover submerged plant from bottom to top at bank protection, emergent aquactic plant and hygrophyte arrange buffer platform simultaneously, the facilities such as sanitary sewage water distributor are also built sinuous this patent of river corridor changing only for river course slope protection, and mainly pay close attention to the recovery of edge of a body of water fluctuation zone, river course.The application take that to build complete river channel ecology system be starting point, respectively to river course slope protection land to region, beach region, river course and waters district, river course provide structure parameter, have better ecological benefits and water body purification effect.
Summary of the invention
For traditional city river building mode, easily bring a series of ecological environments and Landscape, and the limitation of prior art.The present invention propose a kind of both had control flood and drain flooded fields and stable banks function, can provide multinomial ecological functions again, as held, stay degraded external source to pollute, improve water quality of river and water terrestrial animal habitat etc. is provided, build the wetland type river course construction process of River Landscape.
Object of the present invention can be achieved through the following technical solutions:
Build the method in wetland type river course, adopt following steps:
(1) build ecological revetment: application earth working material builds nature gentle slope type shore protection more than normal water line to Lu Xiang region, bank protection top, and plantation Qiao fills with vegetation;
(2) build riverine wetland: in beach region, river course and shallow water area, plant respectively emergent aquactic plant, the transverse width of every side planting area is no more than 1/8 of waters, whole river course width;
(3) build aquatic vegetation Riparian Zone: next-door neighbour emergent aquactic plant district plantation floatingleaved plant, submerged plant, the transverse width of every side planting area is no more than 1/4 of waters, whole river course width.
Earth working material is for having flexibility, and the earth working material that porosity is large, can realize the circulation of underground water and river and link up, the exchange of the inside and outside material in river course and energy, and applicable vegetation growth.As preferred embodiment, earth working material is gabion, ecology bag or ecological block.
Qiao who plants on ecological revetment fill with vegetation select in metasequoia, weeping willow, bigcatkin willow, white poplar, dryland willow, Chinese ash, Chi Shan, bald cypress, yew Chinese elm, silk flosssilk wadding wood, Chinese flowering crabapple, Chinese flowering crabapple, oleander or vetiver 5 kinds or more than, planting density is 7-12 strain/100m 2; Evergreen coniferous species ratio is wherein not less than 20%.
Described beach region, river course and the depth of water of shallow water area are 0-0.5m.
Described emergent aquactic plant select in reed, cattail, calamus, hay grass, water pepper, arrowhead or wild rice 3 kinds or more than, planting density is 20-30 strain/m 2, every kind of ratio is not less than 10%.
Described floatingleaved plant select in water lily, lotus, wild water chestnut, floating heart, Chinese scholartree leaf duckweed or floating leaf bog pondweed 3 kinds or more than, the planting density of lotus and water lily is 1-2 strain/10m 2, the planting density of other plant is 20-30 strain/m 2, every kind of ratio is not less than 10%.
Described submerged plant select in brown alga, hornwort, leaf of bamboo bog pondweed, eel grass or micro-tooth bog pondweed 3 kinds or more than; Average planting density is 20-30 clump/m 2, every kind of ratio is not less than 10%.
Compared with prior art, the ecological revetment that the present invention builds is except possessing the basic function of controlling flood and draining flooded fields with stable banks, can also slow down the erosion to shore protection surface of river and surface flow, the pollutant that vegetation on ecological revetment can be held back in a large number, carry in the surface flow of degrading, and can be some animals, microorganism etc. the place of perching and multiplying is provided.Emergent aquactic plant district, floatingleaved plant district and submerged plant district that riverine wetland and Riparian Zone build, with its dense cane leaf, form layer upon layer of biological filter screen, the compound actions such as the assimilation of microorganism and the absorption of plant, degraded, precipitation, can tackle the various pollutants in purifying river water.The more important thing is, plant space configuration of the present invention rationally, can effectively improve bio-diversity, builds a 26S Proteasome Structure and Function intact ecocystem, to people, provides access and open riverfront, improves life of urban resident quality.And it is convenient to have operation maintenance management, and maintenance cost is low, profitable on ecology, easily the feature such as apply.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment
Build the method in wetland type river course, adopt following steps:
(1) build ecological revetment: application earth working material builds nature gentle slope type shore protection more than normal water line to Lu Xiang region, bank protection top, and the tall filling of plantation vegetation, wherein, earth working material is for having flexibility, the earth working material that porosity is large, can realize the circulation of underground water and river and link up, the exchange of the inside and outside material in river course and energy, and applicable vegetation growth.Can adopt gabion, ecology bag or ecological block, in the present embodiment, adopt ecological block as earth working material, Qiao who plants on ecological revetment fill with vegetation select in metasequoia, weeping willow, bigcatkin willow, white poplar, dryland willow, Chinese ash, Chi Shan, bald cypress, yew Chinese elm, silk flosssilk wadding wood, Chinese flowering crabapple, Chinese flowering crabapple, oleander or vetiver 5 kinds or more than, planting density is 7-12 strain/100m 2; Evergreen coniferous species ratio is wherein not less than 20%.
(2) build riverine wetland: the beach region, river course and the shallow water area that in the depth of water, are 0-0.5m are planted respectively emergent aquactic plant, for example can adopt in reed, cattail, calamus, hay grass, water pepper, arrowhead or wild rice 3 kinds or more than, planting density is 20-30 strain/m 2, the transverse width that every kind of ratio is not less than 10% every side planting area is no more than 1/8 of waters, whole river course width;
(3) build aquatic vegetation Riparian Zone: next-door neighbour emergent aquactic plant district plantation floatingleaved plant, submerged plant, the floatingleaved plant of plantation select in water lily, lotus, wild water chestnut, floating heart, Chinese scholartree leaf duckweed or floating leaf bog pondweed 3 kinds or more than, the planting density of lotus and water lily is 1-2 strain/10m 2, the planting density of other plant is 20-30 strain/m 2, every kind of ratio is not less than 10%, the submerged plant of plantation select in brown alga, hornwort, leaf of bamboo bog pondweed, eel grass or micro-tooth bog pondweed 3 kinds or more than; Average planting density is 20-30 clump/m 2, every kind of ratio is not less than 10%.The transverse width of every side planting area is no more than 1/4 of waters, whole river course width.
This invention is applied to Mou Duan river course, city, Hefei, and after 2 years, monitored data shows that river course bio-diversity significantly increases, and water plant is increased to 24 kinds from 9 kinds, and zoobenthos quantity and density is obviously increase also; Main water quality index biochemical oxygen demand (BOD) (COD), total nitrogen (TN) and total phosphorus (TP) reduce respectively 29.5%, 31.5% and 36.7%.

Claims (8)

1. a method that builds wetland type river course, is characterized in that, adopts following steps:
(1) build ecological revetment: application earth working material builds nature gentle slope type shore protection more than normal water line to Lu Xiang region, bank protection top, and plantation Qiao fills with vegetation;
(2) build riverine wetland: in beach region, river course and shallow water area, plant respectively emergent aquactic plant, the transverse width of every side planting area is no more than 1/8 of waters, whole river course width;
(3) build aquatic vegetation Riparian Zone: next-door neighbour emergent aquactic plant district plantation floatingleaved plant, submerged plant, the transverse width of every side planting area is no more than 1/4 of waters, whole river course width.
2. a kind of method that builds wetland type river course according to claim 1, is characterized in that, described earth working material is for having flexibility, the earth working material that porosity is large.
3. a kind of method that builds wetland type river course according to claim 2, is characterized in that, described earth working material is gabion, ecology bag or ecological block.
4. a kind of method that builds wetland type river course according to claim 1, it is characterized in that, Qiao who plants on ecological revetment fill with vegetation select in metasequoia, weeping willow, bigcatkin willow, white poplar, dryland willow, Chinese ash, Chi Shan, bald cypress, yew Chinese elm, silk flosssilk wadding wood, Chinese flowering crabapple, Chinese flowering crabapple, oleander or vetiver 5 kinds or more than, planting density is 7-12 strain/100m 2; Evergreen coniferous species ratio is wherein not less than 20%.
5. a kind of method that builds wetland type river course according to claim 1, is characterized in that, described beach region, river course and the depth of water of shallow water area are 0-0.5m.
6. a kind of method that builds wetland type river course according to claim 1, is characterized in that, described emergent aquactic plant select in reed, cattail, calamus, hay grass, water pepper, arrowhead or wild rice 3 kinds or more than, planting density is 20-30 strain/m 2, every kind of ratio is not less than 10%.
7. a kind of method that builds wetland type river course according to claim 1, it is characterized in that, described floatingleaved plant select in water lily, lotus, wild water chestnut, floating heart, Chinese scholartree leaf duckweed or floating leaf bog pondweed 3 kinds or more than, the planting density of lotus and water lily is 1-2 strain/10m 2, the planting density of other plant is 20-30 strain/m 2, every kind of ratio is not less than 10%.
8. a kind of method that builds wetland type river course according to claim 1, is characterized in that, described submerged plant select in brown alga, hornwort, leaf of bamboo bog pondweed, eel grass or micro-tooth bog pondweed 3 kinds or more than; Average planting density is 20-30 clump/m 2, every kind of ratio is not less than 10%.
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Cited By (16)

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CN104429529A (en) * 2014-12-03 2015-03-25 华侨大学 Method for building ecological littoral zone in buffer area
CN105084546A (en) * 2015-08-31 2015-11-25 天津城建大学 Gallery type water purification system
CN105084547A (en) * 2015-08-31 2015-11-25 天津城建大学 Water purifier
CN105248081A (en) * 2015-09-28 2016-01-20 四川鑫淼环保科技有限责任公司 Wet land species diversity habitat system construction method
CN105347491A (en) * 2015-09-15 2016-02-24 中国电建集团华东勘测设计研究院有限公司 Wetland combination system for improving wetland biodiversity
CN105359770A (en) * 2015-09-29 2016-03-02 中国环境科学研究院 Construction method for suburb gentle slope land-lake ecotone vegetational community
CN105417712A (en) * 2015-12-01 2016-03-23 中国科学院东北地理与农业生态研究所 Construction method of ecological river branch in floodplain wetland in plain area
CN105519397A (en) * 2015-12-01 2016-04-27 中国科学院东北地理与农业生态研究所 Construction method of salix sungkianica revetment-biological habitat of river erosion bank
CN106277334A (en) * 2016-08-08 2017-01-04 中冶华天工程技术有限公司 Clear water type ecosystem and construction method thereof
CN106592508A (en) * 2016-11-18 2017-04-26 中国电建集团成都勘测设计研究院有限公司 Water-closing facility for urban water conservancy scenic area
CN106613092A (en) * 2016-10-11 2017-05-10 中国科学院武汉植物园 Plant community establishing method for city waterscape ecological embankment
CN107176685A (en) * 2017-04-22 2017-09-19 江西怡杉环保股份有限公司 For the construction method for the Riparian Zone wetland for cutting down pollution of area source
CN108560483A (en) * 2018-04-28 2018-09-21 深圳春沐源控股有限公司 A kind of river structure
CN108901723A (en) * 2018-07-03 2018-11-30 安徽大学 A kind of intercropping method of emergent aquactic plant
CN109607795A (en) * 2018-11-23 2019-04-12 中南林业科技大学 A kind of construction method of the reverse osmosis wall biosynthesis of lake falling zone near-nature forest
CN110326491A (en) * 2019-05-27 2019-10-15 贵州工程应用技术学院 A kind of mountain area dam lower reache ecological environment restorative procedure

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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104429529A (en) * 2014-12-03 2015-03-25 华侨大学 Method for building ecological littoral zone in buffer area
CN105084546A (en) * 2015-08-31 2015-11-25 天津城建大学 Gallery type water purification system
CN105084547A (en) * 2015-08-31 2015-11-25 天津城建大学 Water purifier
CN105084546B (en) * 2015-08-31 2017-10-27 天津城建大学 Gallery type water cleaning systems
CN105084547B (en) * 2015-08-31 2017-10-10 天津城建大学 Purifier
CN105347491A (en) * 2015-09-15 2016-02-24 中国电建集团华东勘测设计研究院有限公司 Wetland combination system for improving wetland biodiversity
CN105347491B (en) * 2015-09-15 2017-08-25 中国电建集团华东勘测设计研究院有限公司 A kind of wetland combined system for improving Wetland Biodiversity
CN105248081B (en) * 2015-09-28 2018-02-06 南京必蓝环境技术有限公司 wetland species diversity habitat system construction method
CN105248081A (en) * 2015-09-28 2016-01-20 四川鑫淼环保科技有限责任公司 Wet land species diversity habitat system construction method
CN105359770A (en) * 2015-09-29 2016-03-02 中国环境科学研究院 Construction method for suburb gentle slope land-lake ecotone vegetational community
CN105359770B (en) * 2015-09-29 2018-10-26 中国环境科学研究院 Outskirts of a town gentle slope type land inland water ecotone vegetational type construction method
CN105417712A (en) * 2015-12-01 2016-03-23 中国科学院东北地理与农业生态研究所 Construction method of ecological river branch in floodplain wetland in plain area
CN105519397A (en) * 2015-12-01 2016-04-27 中国科学院东北地理与农业生态研究所 Construction method of salix sungkianica revetment-biological habitat of river erosion bank
CN106277334A (en) * 2016-08-08 2017-01-04 中冶华天工程技术有限公司 Clear water type ecosystem and construction method thereof
CN106613092A (en) * 2016-10-11 2017-05-10 中国科学院武汉植物园 Plant community establishing method for city waterscape ecological embankment
CN106592508A (en) * 2016-11-18 2017-04-26 中国电建集团成都勘测设计研究院有限公司 Water-closing facility for urban water conservancy scenic area
CN107176685A (en) * 2017-04-22 2017-09-19 江西怡杉环保股份有限公司 For the construction method for the Riparian Zone wetland for cutting down pollution of area source
CN108560483A (en) * 2018-04-28 2018-09-21 深圳春沐源控股有限公司 A kind of river structure
CN108901723A (en) * 2018-07-03 2018-11-30 安徽大学 A kind of intercropping method of emergent aquactic plant
CN109607795A (en) * 2018-11-23 2019-04-12 中南林业科技大学 A kind of construction method of the reverse osmosis wall biosynthesis of lake falling zone near-nature forest
CN110326491A (en) * 2019-05-27 2019-10-15 贵州工程应用技术学院 A kind of mountain area dam lower reache ecological environment restorative procedure
CN110326491B (en) * 2019-05-27 2021-03-19 贵州工程应用技术学院 Ecological environment restoration method for downstream river section of mountain dam

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