CN101960951A - Submerged macrophytes restoring process guided by water conservation fishery - Google Patents
Submerged macrophytes restoring process guided by water conservation fishery Download PDFInfo
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- CN101960951A CN101960951A CN2009100553244A CN200910055324A CN101960951A CN 101960951 A CN101960951 A CN 101960951A CN 2009100553244 A CN2009100553244 A CN 2009100553244A CN 200910055324 A CN200910055324 A CN 200910055324A CN 101960951 A CN101960951 A CN 101960951A
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Abstract
The invention discloses a submerged macrophytes restoring process guided by water conservation fishery. By stocking silver carp and bighead carp and reducing COD (chemical oxygen demand), TP (total phosphor), chlorophyll and other chemical indexes of the water body, the process effectively reduces the algae biomass in the water body, improves the water body transparency, and achieves the aim of preventing algal bloom and improving the water quality, so an excellent growing condition is provided for aquatic macrophytes (in particular, the submerged macrophytes); and by adding fish and other key organisms eating attaching organisms, which is a key link in a food chain, the attaching organisms growing vigorously on the surface of the submerged macrophytes can be removed in time, and the aim of restoring the submerged macrophytes can be achieved.
Description
Technical field:
The present invention relates to a kind of submerged vegetation renovation technique.
Background technology:
Current, because greatly developing of population increase, urbanization and industrial and agricultural production, a large amount of unprocessed or be discharged into the lake without sanitary sewage and the industrial and agricultural wastewater effectively handled, cause China lake eutrophication problem generally to occur, thereby cause the water plants serious degradation in the lake, the reverse succession in careless type lake is the general present situation in algae type lake.The disappearance of pasture and water makes algae, particularly blue algae become the topmost producer in lake, thereby frequent outburst becomes algal tufa under eutrophication water quality condition, and and then the health of water resource utilization and aquatic ecosystem is all constituted serious negative effect.In view of the particularly critical function and the effect that are had in lake ecosystem of submerged plant of high water plants, recovering high aquatic vegetation has become the most key important means in the lake eutrophication control.
Studies show that in a large number high water plants is abundant, when especially submerged plant was preponderated, water body was limpid, bio-diversity is high, can keep the cleaning of water body and the stable state of intrinsic advantage on different trophic level levels.High water plants is in process of growth, need to absorb a large amount of N, nutritive elements such as P, and be translated into self component, thereby reduce the eutrophication level of water body, also can reduce simultaneously because wind reduces turbidity with ingesting the caused sediments resuspension of benthic fish.High water plants also has certain enrichment to the toxic metals element, by absorb, absorption is in the heavy metal element suction body, thereby reach the purpose of purifying water body.
High water plants individuality is bigger, is easy to management, and of many uses.Can take macronutrient and heavy metal element that it absorbed out of water body by salvaging, reduce the eutrophication degree of water body.Therefore, the aquatic vegetation that recovers based on submerged plant is the important measures of carrying out purification of water quality and ecosystem restoration rationally and effectively, is the effective way of improving water quality eutrophication degree.
Yet it is very low directly to repair the water plants success rate in eutrophication water, how effectively to repair the eutrophication water water plants particularly submerged plant become a wherein most important and the most difficult key technology.
Summary of the invention:
The present invention has overcome " algalbloom and the water transparency that causes is low; make the illumination of water body depths be lower than the necessary compensation intensity of submerged plant growth " and the shortcoming of " new submerged plant of repairing can not better grow because of the aufwuch that is subjected to vigorous growth in eutrophication water " that occurs in the above-mentioned submerged plant repair process, guarantee that submerged plant better grows and provide a kind of, thereby reach the submerged vegetation renovation technique of the water conservation fishery guiding of the purpose that promotes that submerged vegetation is repaired.
To achieve these goals, the present invention realizes by the following technical solutions:
A kind of submerged vegetation renovation technique of water conservation fishery guiding is characterized in that described recovery technique is to finish according to following step:
(1) in pond that needs are handled or lake, puts an amount of silver carp, bighead in a suitable place to breed, effectively reduce the chlorophyll a content in the lake and improve water transparency thereby bring into play its filter food effect to planktonic algae;
(2) after water transparency reaches more than the 0.8-1.0m, plant submerged plant again;
(3) plant and take root back input in time submerged plant and scrape the food biology and in time remove epizootic various thread algae and other epizoites, thereby guarantee submerged plant healthy growth under enough illumination conditions for submerged plant.
The input specification of described silver carp, two kinds of fingerlings of bighead is 1 age or 2 ages, and silver carp, bighead gross density should be according to the nutrition extent control of water body at 5-100g/m
3, and the input gross weight ratio of selecting silver carp and bighead according to coverage of water and nutrition condition (being nitrogen, phosphorus content etc.) is 1: 4-4: between 1.
Described submerged plant is selected eel grass, hornwort, Huang Sicao, plants such as black algae, water caltrop and waterweed for use;
Describedly scrape that food is biological selects for use Plagiognathops microlepis etc. to scrape the biology that feeding fish, rice shrimp and radish spiral shell etc. are scraped the feeding habits invertebrate.
The present invention had both reduced the water body total phosphorus by the silver carp bighead to the filter food effect of planktonic algae and had further limited algal grown, had reached the purpose of improving water quality and transparency again, for submerged plant growth provides necessary environmental condition; Scrape the feeding habits biology by input simultaneously and in time remove the body surface attaching organism for submerged plant, thereby can improve the success rate that submerged plant is repaired, and the water body reparation is combined with fish production, thereby reduced the cost of Water Ecological Recovery to the utmost, improved the sustainability of Water Ecological Recovery.
Description of drawings:
Further specify the present invention below in conjunction with the drawings and specific embodiments.
Fig. 1 is concrete implementing procedure figure of the present invention.
Embodiment:
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Be under the prerequisite of guiding with " water conservation fishery " this theory, by putting silver carp, bighead in a suitable place to breed, chemical index such as COD (chemical oxygen consumption (COC)), the TP (total phosphorus) of reduction water body, chlorophyll a, thereby effectively reduce the algae bio amount in the water body, improve water transparency, reach the prevention of water grey hair and give birth to and improve the purpose of water quality, and then provide better growing conditions for high water plants (especially submerged plant); By increasing the crucial biologies such as key link food aufwuch fish of food chain, the aufwuch that submerged plant surface vigorous growth is removed timely, thereby guarantees the purpose that submerged plant is repaired then.
Renovation technique of the present invention is to finish according to following step:
With reference to figure 1: at first, in pond that needs are handled or lake, put an amount of silver carp, bighead in a suitable place to breed, effectively reduce the chlorophyll a content in the lake and improve water transparency thereby bring into play its filter food effect to planktonic algae; After water transparency reaches more than the 0.8-1.0m, plant submerged plant again; At last in submerged plant plantation with take root the back and in time throw in and scrape the biological as Plagiognathops microlepis of food etc. and scrape feeding fish, meter shrimp and radish spiral shell etc. and scrape feeding habits invertebrate etc., and in time remove epizootic various thread algae and other epizoites, thereby guarantee submerged plant healthy growth under enough illumination conditions for submerged plant.The input specification of general silver carp, two kinds of fingerlings of bighead is 1 age or 2 ages, and silver carp, bighead gross density should be according to the nutrition extent control of water body at 5-100g/m
3, and according to the content of chlorophyll a in shared area of algae in the algae type lake and the water, selecting silver carp and the input gross weight ratio of bighead is 1: 4-4: 1 is the best; General area is less than 60 hectares small-sized lake, pond, and total phosphorus content is higher than the lake of 0.2mg/l, should consider to throw in the silver carp ratio greater than bighead, phosphorus content is high more, and algae density is big more, then throws in silver carp ratio and silver carp, the bighead total biomass is high more, and great water body (usually greater than 100 hectares) and total phosphorus are lower than this content, the silver carp ratio is less than bighead, and phosphorus content is low more, and silver carp ratio and silver carp, bighead total biomass are more little.Can play good catharsis like this, when selecting submerged plant, should select for use as eel grass, hornwort, Huang Sicao, some submerged plants such as black algae, water caltrop and waterweed.
Based on technique scheme, concrete enforcement of the present invention is as follows:
Its area of lake to be repaired that is used for the invention process object reaches 8,000m
2, and the aquatic vegetation coverage rate in this lake is few, and less than 1%, its aquatic vegetation mainly also has only water peanut, reed etc., and a few is swum and emergent aquactic plant, and submerged plant is few.Adopt in this district " the aquatic vegetation renovation technique of water conservation fishery guiding ":
At first to this test region throw in 1 age silver carp, bighead fingerling, wherein throw in 1 age silver carp 160kg, 1 age bighead 80kg.Make the silver carp bighead gross density in full lake reach 20g/m after the input
3Simultaneously results of regular determination the chemical measurements of water of water body, as chemical index such as COD (chemical oxygen consumption (COC)), TN (total nitrogen) and TP (total phosphorus) transparency (per 2 week mensuration once).
Treat in time to plant waterweed, Potamogeton pectinatus L, eel grass, hydrilla verticillata and p.malaianus etc. after water transparency reaches 1.0m-1.5m, throw in Plagiognathops microlepis and ring rib spiral shell simultaneously, periodic monitoring submerged plant growth situation.Can find that after 4 months water quality begins to improve, and vegetation has obtained reparation gradually, utilize silver carp and bighead to the effect of planktonic filter food, and scrape food biological to epizoite the food effect of scraping and submerged plant to the effect of three aspects such as absorption of nitrogen phosphorus, thereby played the effect of purification of water quality to greatest extent, made the body eutrophication regulation effect reach best.It is little to adopt this process economics to drop into, and need not the bait throwing in fertilising, the ecological risk problem that no alien species invasion causes; Simultaneously can also be by catching aquatic products that economic fish provides or taking nutritive salt such as a part of nitrogen phosphorus out of water body by harvesting to submerged plant.
The present invention had both reduced the water body total phosphorus by the silver carp bighead to the filter food effect of planktonic algae and had further limited algal grown, had reached the purpose of improving water quality and transparency again, for submerged plant growth provides necessary environmental condition; Scrape the feeding habits biology by input simultaneously and in time remove the body surface attaching organism for submerged plant, thereby can improve the success rate that submerged plant is repaired, and the water body reparation is combined with fish production, thereby reduced the cost of Water Ecological Recovery to the utmost, improved the sustainability of Water Ecological Recovery.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (4)
1. the submerged vegetation renovation technique of water conservation fishery guiding is characterized in that described recovery technique is to finish according to following step:
(1) in pond that needs are handled or lake, puts an amount of silver carp, bighead in a suitable place to breed, thereby utilize its filter food effect to effectively reduce the chlorophyll a content in the lake and improve water transparency planktonic algae;
(2) after water transparency reaches more than the 0.8-1.0m, plant submerged plant again;
(3) plant and take root back input in time submerged plant and scrape the food biology and in time remove epizootic various thread algae and other epizoites, thereby guarantee submerged plant healthy growth under enough illumination conditions for submerged plant.
2. according to the submerged vegetation renovation technique of a kind of water conservation fishery guiding of claim 1, it is characterized in that the input specification of described silver carp, two kinds of fingerlings of bighead is 1 age or 2 ages, silver carp, bighead gross density should be according to the nutrition extent control of water body at 5-100g/m
3, and the input gross weight ratio of selecting silver carp and bighead according to coverage of water and nutrition condition (being nitrogen, phosphorus content etc.) is 1: 4-4: between 1.
3. according to the submerged vegetation renovation technique of a kind of water conservation fishery guiding of claim 1, it is characterized in that described submerged plant is selected eel grass, hornwort, Huang Sicao, plants such as black algae, water caltrop and waterweed for use.
4. according to the submerged vegetation renovation technique of a kind of water conservation fishery guiding of claim 1, it is characterized in that, describedly scrape that food is biological selects for use Plagiognathops microlepis etc. to scrape the biology that feeding fish, rice shrimp and radish spiral shell etc. are scraped the feeding habits invertebrate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100553244A CN101960951B (en) | 2009-07-24 | 2009-07-24 | Submerged macrophytes restoring process guided by water conservation fishery |
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| CN2009100553244A CN101960951B (en) | 2009-07-24 | 2009-07-24 | Submerged macrophytes restoring process guided by water conservation fishery |
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| CN101960951A true CN101960951A (en) | 2011-02-02 |
| CN101960951B CN101960951B (en) | 2012-08-22 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103340144A (en) * | 2013-07-11 | 2013-10-09 | 安徽泊湖全美渔业有限公司 | Method for improving environment of fishery culture lake |
| CN103663672A (en) * | 2013-11-26 | 2014-03-26 | 中国水产科学研究院淡水渔业研究中心 | Method using scratching fish and periphyton for combined control of lake eutrophication |
| CN104891660A (en) * | 2015-05-07 | 2015-09-09 | 中国科学院南京地理与湖泊研究所 | Simulation method for removing submerged plant by using filter feeder |
| CN105417720A (en) * | 2015-12-31 | 2016-03-23 | 潘宏坚 | Method for controlling eutrophic water algae |
| CN105417713A (en) * | 2015-12-11 | 2016-03-23 | 杭州银江环保科技有限公司 | Comprehensive maintaining method for submerged plants |
| CN108569764A (en) * | 2017-03-07 | 2018-09-25 | 上海太和水环境科技发展股份有限公司 | A method of control eel grass surface attachments and moss |
| CN108569763A (en) * | 2017-03-07 | 2018-09-25 | 上海太和水环境科技发展股份有限公司 | A method of controlling eel grass surface attachments and moss using radish spiral shell |
| CN110304730A (en) * | 2019-07-15 | 2019-10-08 | 四川中科水务科技有限公司 | A kind of Compound water ecology restoration method |
| CN111099734A (en) * | 2019-12-17 | 2020-05-05 | 中国科学院南京地理与湖泊研究所 | Method for promoting submerged plant field planting |
| CN111115833A (en) * | 2020-01-02 | 2020-05-08 | 北京市市政工程设计研究总院有限公司 | Method for controlling growth of filamentous algae in landscape water body to increase ornamental value of water body |
| CN112293242A (en) * | 2020-10-29 | 2021-02-02 | 中国葛洲坝集团水务运营有限公司 | Method for promoting growth of submerged plants by feeding attached algae through snails |
-
2009
- 2009-07-24 CN CN2009100553244A patent/CN101960951B/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103340144A (en) * | 2013-07-11 | 2013-10-09 | 安徽泊湖全美渔业有限公司 | Method for improving environment of fishery culture lake |
| CN103663672A (en) * | 2013-11-26 | 2014-03-26 | 中国水产科学研究院淡水渔业研究中心 | Method using scratching fish and periphyton for combined control of lake eutrophication |
| CN103663672B (en) * | 2013-11-26 | 2014-12-10 | 中国水产科学研究院淡水渔业研究中心 | Method using scratching fish and periphyton for combined control of lake eutrophication |
| CN104891660A (en) * | 2015-05-07 | 2015-09-09 | 中国科学院南京地理与湖泊研究所 | Simulation method for removing submerged plant by using filter feeder |
| CN105417713A (en) * | 2015-12-11 | 2016-03-23 | 杭州银江环保科技有限公司 | Comprehensive maintaining method for submerged plants |
| CN105417720A (en) * | 2015-12-31 | 2016-03-23 | 潘宏坚 | Method for controlling eutrophic water algae |
| CN108569764A (en) * | 2017-03-07 | 2018-09-25 | 上海太和水环境科技发展股份有限公司 | A method of control eel grass surface attachments and moss |
| CN108569763A (en) * | 2017-03-07 | 2018-09-25 | 上海太和水环境科技发展股份有限公司 | A method of controlling eel grass surface attachments and moss using radish spiral shell |
| CN110304730A (en) * | 2019-07-15 | 2019-10-08 | 四川中科水务科技有限公司 | A kind of Compound water ecology restoration method |
| CN111099734A (en) * | 2019-12-17 | 2020-05-05 | 中国科学院南京地理与湖泊研究所 | Method for promoting submerged plant field planting |
| CN111099734B (en) * | 2019-12-17 | 2020-12-15 | 中国科学院南京地理与湖泊研究所 | Method for promoting submerged plant field planting |
| CN111115833A (en) * | 2020-01-02 | 2020-05-08 | 北京市市政工程设计研究总院有限公司 | Method for controlling growth of filamentous algae in landscape water body to increase ornamental value of water body |
| CN112293242A (en) * | 2020-10-29 | 2021-02-02 | 中国葛洲坝集团水务运营有限公司 | Method for promoting growth of submerged plants by feeding attached algae through snails |
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| Publication number | Publication date |
|---|---|
| CN101960951B (en) | 2012-08-22 |
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