CN105133540A - Restoration method for small river sand excavation slash - Google Patents
Restoration method for small river sand excavation slash Download PDFInfo
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- CN105133540A CN105133540A CN201510451535.5A CN201510451535A CN105133540A CN 105133540 A CN105133540 A CN 105133540A CN 201510451535 A CN201510451535 A CN 201510451535A CN 105133540 A CN105133540 A CN 105133540A
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- sand excavation
- small rivers
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Abstract
The invention relates to the technical field of ecological restoration engineering, in particular to a restoration method for a small river sand excavation slash. A retaining dam is constructed in the low-water period of a small river; a sand pit of the sand excavation slash and a river bottom are flattened through a large machine; biodegradable straw matting is laid and fixed; the river is longitudinally segmented; submerged plants which have roots with soil are planted on the straw matting; water is guided back in a segmented manner; and after one side is restored, the other side of the sand excavation slash is restored with the same method, and therefore ecological restoration of the sand excavation slash is achieved. A segmented governance manner is adopted for the small river sand excavation slash in the low-water period, and therefore governance difficulty is effectively reduced. The biodegradable straw matting is laid in a combined manner. An excellent habitat is provided for the submerged plants, other animals, plants and microorganisms, and biological diversity is improved. Pioneer species and successional species are combined, and therefore succession and evolution of the submerged plants are facilitated, and the method is an economical and effective ecological restoration method for the river sand excavation slash.
Description
Technical field
The present invention relates to and recover ecological engineering technology field, specifically a kind of small rivers is dug sand the restorative procedure in slash.
Background technology
River sand is the primary raw material in construction industry, along with urbanization fast, many areas sandstone demand constantly increase, river basins are by the long-term source place as builing industry fines.Unordered digging sand make sandpit in river course visible everywhere, heavy damage river course form and watershed ecosystem.The water conservation of slash, river, the supply capacity of digging sand constantly declines; Lose riverbed and filter degradation function, water quality deterioration; River course overbank wetland, forest land progressively disappear, and all kinds of aquatic bird and birds are difficult to find footprint, and natural ecological environment goes from bad to worse.
In recent years, river ecosystem restoration has become the hot issue of hydro science and field of ecology research.It mainly adopts plant or the material such as timber, stone material and plant to arrange in pairs or groups, and afforests and protects, add diversity and the sight of bank protection work to river course is domatic.It is on the basis ensureing Stability Analysis of Structures, flood passage safety, by increasing the phytobiocoenose on shore protection, and that progressively form near-nature forest, that ecologic structure is complete hydraulic engineering.
The excessive exploitation of river sand resource causes the deterioration of the ecological environment, and sand layer thickness is thinning, part riverbed exposed bedrock, and reparation difficulty is very large.Due to mobility and the environmental complexity of water body, very few to the research of Cai Sha slash, river ecological recovery at present, concrete enforcement is indefinite with reset mode.
Summary of the invention
The object of the present invention is to provide a kind of ecological restoring method of slash, river of effectively digging sand.
In order to realize foregoing invention object, the technical solution used in the present invention is as follows:
Check dam is built dry season at small rivers, utilize sandpit and the river bed in the smooth slash of digging sand of big machinery, lay and the degradable straw screen or mat of fixed biologically, by river longitudinal divisions, root band mud submerged plant is planted on straw screen or mat, moisture section is led back, after side has been repaired, repairs opposite side in the same way and to dig sand slash.
Described small rivers is built in check dam step dry season, and be laterally divided into two in river, water enters side.
The selection of described submerged plant kind, combines exploiting species and succession species.
Advantage of the present invention is: to small rivers dig sand slash adopt dry season subsection harnessing mode, effectively reduce difficulty of governance.In conjunction with laying biodegradable straw screen or mat, to submerged plant and other animals, plant, microorganism excellent habitat is provided, increase bio-diversity.Exploiting species and succession species are combined, prevents the aging of group.
Detailed description of the invention
Build check dam dry season at certain small rivers, be laterally divided into two in river, water enters side.Utilize sandpit and the river bed in the smooth slash of digging sand of big machinery at opposite side, also the degradable straw screen or mat of fixed biologically is some in laying, is of a size of 15 × 1.5m.River is longitudinally divided into 10 sections, every segment length 100 meters.
Complete investigation through early stage to local submerged plant, determine the kind of submerged plant, exploiting species potamogeton malaianus and succession species Haloragidaceae Myriophyllum spicatum combine.The submerged plant of root band mud is planted on straw screen or mat, moisture section is led back, after side has been repaired, repair opposite side in the same way and to dig sand slash.
Claims (3)
1. a small rivers is dug sand the restorative procedure in slash, it is characterized in that comprising the steps: to build check dam dry season at small rivers, utilize sandpit and the river bed in the smooth slash of digging sand of big machinery, lay and the degradable straw screen or mat of fixed biologically, by river longitudinal divisions, root band mud submerged plant is planted on straw screen or mat, moisture section is led back, after side has been repaired, repair opposite side in the same way and to dig sand slash.
2. a kind of small rivers according to claim 1 is dug sand the restorative procedure in slash, it is characterized in that described small rivers is built in check dam step dry season, and be laterally divided into two in river, water enters side.
3. a kind of small rivers according to claim 1 is dug sand the restorative procedure in slash, it is characterized in that the selection of described submerged plant kind, exploiting species and succession species is combined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510451535.5A CN105133540B (en) | 2015-07-29 | 2015-07-29 | Restoration method for small river sand excavation slash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510451535.5A CN105133540B (en) | 2015-07-29 | 2015-07-29 | Restoration method for small river sand excavation slash |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105133540A true CN105133540A (en) | 2015-12-09 |
| CN105133540B CN105133540B (en) | 2017-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510451535.5A Expired - Fee Related CN105133540B (en) | 2015-07-29 | 2015-07-29 | Restoration method for small river sand excavation slash |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109338984A (en) * | 2018-11-19 | 2019-02-15 | 中国科学院武汉植物园 | A method of sand river Riparian Zone is adopted by repairing river phreatic zone to repair |
| CN109371896A (en) * | 2018-11-22 | 2019-02-22 | 长江重庆航运工程勘察设计院 | A kind of river sand mining hole ecological treatment method |
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| KR20020065685A (en) * | 2001-02-07 | 2002-08-14 | 신천희 | A execution methode for joint plant |
| CN1908314A (en) * | 2006-04-06 | 2007-02-07 | 南京大学 | Ecological river bed construction method |
| CN102102351A (en) * | 2009-12-18 | 2011-06-22 | 中国科学院沈阳应用生态研究所 | Method for greening flood lands |
| CN102134841A (en) * | 2011-02-12 | 2011-07-27 | 河海大学 | Method for jointly repairing submerged plants on underwater hard slope of river |
| CN202194109U (en) * | 2011-08-02 | 2012-04-18 | 成都酷玩网络科技有限公司 | Novel ecological grass mattress |
| CN102776863A (en) * | 2012-07-16 | 2012-11-14 | 南京大学 | Construction method of ecological riverbed |
| CN103132554A (en) * | 2013-03-13 | 2013-06-05 | 中交第三航务工程局有限公司上海分公司 | Wireless remote control walking-type underwater bump-cutter machine operational method |
| CN103422464A (en) * | 2012-05-15 | 2013-12-04 | 上海市南洋模范中学 | Process for constructing river channel ecological system of hard revetment by aid of cofferdams and floating beds |
| CN104631380A (en) * | 2015-02-09 | 2015-05-20 | 东南大学 | Shore type ladder-grade two-dimensional surface flow water filtering riverbed in-situ ecological remediation method |
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2015
- 2015-07-29 CN CN201510451535.5A patent/CN105133540B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020065685A (en) * | 2001-02-07 | 2002-08-14 | 신천희 | A execution methode for joint plant |
| CN1908314A (en) * | 2006-04-06 | 2007-02-07 | 南京大学 | Ecological river bed construction method |
| CN102102351A (en) * | 2009-12-18 | 2011-06-22 | 中国科学院沈阳应用生态研究所 | Method for greening flood lands |
| CN102134841A (en) * | 2011-02-12 | 2011-07-27 | 河海大学 | Method for jointly repairing submerged plants on underwater hard slope of river |
| CN202194109U (en) * | 2011-08-02 | 2012-04-18 | 成都酷玩网络科技有限公司 | Novel ecological grass mattress |
| CN103422464A (en) * | 2012-05-15 | 2013-12-04 | 上海市南洋模范中学 | Process for constructing river channel ecological system of hard revetment by aid of cofferdams and floating beds |
| CN102776863A (en) * | 2012-07-16 | 2012-11-14 | 南京大学 | Construction method of ecological riverbed |
| CN103132554A (en) * | 2013-03-13 | 2013-06-05 | 中交第三航务工程局有限公司上海分公司 | Wireless remote control walking-type underwater bump-cutter machine operational method |
| CN104631380A (en) * | 2015-02-09 | 2015-05-20 | 东南大学 | Shore type ladder-grade two-dimensional surface flow water filtering riverbed in-situ ecological remediation method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109338984A (en) * | 2018-11-19 | 2019-02-15 | 中国科学院武汉植物园 | A method of sand river Riparian Zone is adopted by repairing river phreatic zone to repair |
| CN109371896A (en) * | 2018-11-22 | 2019-02-22 | 长江重庆航运工程勘察设计院 | A kind of river sand mining hole ecological treatment method |
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| Publication number | Publication date |
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| CN105133540B (en) | 2017-04-26 |
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