CN1255336C - Method for biological repairing eutrophication of subtropical zone caltivate pond - Google Patents
Method for biological repairing eutrophication of subtropical zone caltivate pond Download PDFInfo
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- CN1255336C CN1255336C CNB2004100065888A CN200410006588A CN1255336C CN 1255336 C CN1255336 C CN 1255336C CN B2004100065888 A CNB2004100065888 A CN B2004100065888A CN 200410006588 A CN200410006588 A CN 200410006588A CN 1255336 C CN1255336 C CN 1255336C
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- pond
- eutrophication
- subtropics
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- biological
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
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Abstract
The present invention relates to a biological restoring method for eutrophic cultivation pond in subtropics by alga cultivation and particularly water culture on a raft rack. The present invention comprises the steps: biological restoring plants are selected, suspended and planted on the raft rack with the initial suspended planting density lower than 300kg/ mou; after harvest, a seeding rope is used for back complementing seedlings with the cultivation density lower than 600kg/ mou; the raft rack is provided with at least three supporting rods arranged side by side, the ends of the supporting rods are connected into a rack body by a rope or a bracket; tying ropes are arranged among the supporting rods, and the rack body is provided with at least two suspension bodies and are fixed by at least four fixing ropes. Different restoring organisms can be used to continuously restore the eutrophic cultivation pond all the year. The underwater depth of the raft rack can be freely regulated by the length of the rope connected with the plastics foam bodies of the supporting rods on the raft rack. The present invention is suitable for cultivation water bodies in the pond with different transparence, adopts a method of harvest and seedling complement between ropes and to keep a proper amount of restoring organisms exist in the water bodies, and has the advantages of strong practicability, simple operation and easy popularization.
Description
Technical field
The present invention relates to the cultivation of a kind of marine alga, the water planting on the raft frame especially is used for the method for pond, subtropics eutrophication biological restoration.
Background technology
Sea farming is the important component part of China's Coastal Areas economy.But the eutrophication that pond seawater animal cultivation causes causes disease and red tide to take place frequently, contaminate environment not only, and jeopardize aquaculture, the financial loss heaviness.Particularly water hypoxia and NH
3Deng harm be the main problem that cultivating pool faces.Utilize fragrant plant mentioned in ancient texts to absorb nutritive salt such as N, P in the water body, emit O simultaneously
2, supply with cultivated animals, can suppress the anaerobic bacterium activity, reduce CH
4, H
2S, NH
3Wait the generation of some toxic and harmfuls, create good breeding environment, strengthen the cultivated animals disease resistance, improve growth rate.By artificial results marine alga the nutritive substance in the water body is migrated out system, reach the purpose of alleviating and eliminating eutrophication.This biological restoration approach has become the preferred version of the solution environmental problem of praising highly in the world.But at home and abroad there is no method and technology at the system of subtropics cultivating pool sea farming eutrophication biological restoration.Fragrant plant mentioned in ancient texts is in the past cultured the form that adopts the end to broadcast, but for the depth of water, the pond that water transparency is low, as piscina, because a little less than the light of bottom, the fragrant plant mentioned in ancient texts poor growth, even can't survive.
Summary of the invention
The present invention is intended to the suitable growth condition (as light intensity, water temperature etc.) according to fragrant plant mentioned in ancient texts, employing can flexible the raft frame of the degree of depth under water, realize reparation to various cultivating pools.Another object of the present invention is that the marine alga itself that is used for biological restoration can be used as the feed of high added value sea-foods such as abalone, not only solves ecological environment problem but also produce considerable economic.
The step of the biological renovation method of pond, said subtropics eutrophication is
1, selects to be used for the algae kind of pond, subtropics eutrophication biological restoration;
2, the marine alga that will be used for pond, subtropics eutrophication biological restoration hangs the raft frame of supporting at pond water, and its initial hanging is supported density less than 300kg/ mu, is preferably 100～200kg/ mu;
3, gathered 1 time every 15～35 days, restrict between preferably and gather, promptly every two adjacent seedling ropes are gathered 1, and the seedling rope after gathering covers seedling, and cultivation density is preferably 200～600kg/ mu less than 600kg/ mu.
The said marine alga that is used for pond, subtropics eutrophication biological restoration can be selected from the river hedge, for example at least a kind in radial striations river hedge (Gracilaria lichenoides) or the numerous principal deformation kind of Gracilaria tenuistipitata (Gracilaria tenuistipitata.var.liui) etc.
Said raft sets up at least 3 poles that are arranged side by side, the end of pole is connected into support body by rope or support, be provided with the tether that is used to place the biological restoration plant between the pole, support body is provided with at least 2 suspensoids, the heavy part of support body tenesmus that links to each other with suspensoid, be used to keep support body to suspend in water, support body is fixed on the mounting block by at least 4 stationary ropes.
The pole that is arranged side by side is parallel to each other, and can select non-metallic material such as bamboo, wood or plastics for use, or the light metal material, is preferably pipe, and its length is chosen as 2～10m, best 3.5～5m.
Said support body preferably is rectangle, and support body length is preferably 50～70m greater than 10m; Width is preferably 4～5m greater than 2m.Suspensoid can be selected the plastic foam body for use, and heavy part can be selected basic brick, stone etc. for use, but connects the rope and the stationary rope coupling of pole end, and mounting block can be selected fixed link for use, stake etc.
The present invention can adopt the reparation biology of the different growth comfort zones that are suitable for winter and summer, realizes annual uninterrupted the reparation.The degree of depth under water of any adjusting raft frame of rope length of plastic foam body that can be by connecting raft frame upper rack posts is suitable for the pond culture water body of different transparencies.Rope is gathered in the crops between the present invention's employing, a rope is filled the gaps with seedlings method, can keep that an amount of reparation biology is arranged in the water body at any time.It is practical, and is easy and simple to handle, be easy to promote.
Description of drawings
Fig. 1 supports the bamboo raft structural representation for embodiment of the invention bank base fragrant plant mentioned in ancient texts hangs.
Embodiment
As shown in Figure 1, the plant that is used for pond, subtropics eutrophication biological restoration is selected from radial striations river hedge.Hanging raft culture frame is provided with 12 bamboo poles that are parallel to each other 1, the end of bamboo pole 1 is connected into support body by rope 2, be provided with the seedling rope 3 that is used to hang health thing rehabilitation plant between the bamboo pole 1, support body is provided with plastic foam ball 4, the heavy part of support body tenesmus, be used to keep support body to suspend in water, support body is fixed in the bamboo stake 6 by 4 stationary ropes 5.The length of bamboo pole is chosen as 4.2m.Support body is rectangle, and support body length is 60m; Width is 4.2m.
The plant radial striations river hedge that will be used for pond, subtropics eutrophication biological restoration hangs the raft frame of supporting at pond water, and it is initial to hang that to support density be 200kg/ mu.
When water temperature is higher than 22 ℃, can select for use radial striations river hedge biological as repairing, when water temperature is lower than 30 ℃, biological as repairing with the numerous principal deformation kind of Gracilaria tenuistipitata.The two covers annual lasting reparation in conjunction with forming.
The length of fragrant plant mentioned in ancient texts hanging raft culture frame and the length in pond are approaching, general 50～70m.Each connects 1 plastic foam ball 4 with rope bamboo pole 1 two ends, and the basic brick 7 that drops is fixed on 0.3～0.5m depths under water with the row's of putting in order bamboo raft, and rope 2 two ends are fixed in the bamboo stake 6 on bank.Distance 0.5～1m between adjacent raft frame.
When the reparation biology was put in a suitable place to breed, the fragrant plant mentioned in ancient texts seedling pressed from both sides seedling with rope, and the seedling rope adopts the plastic ties of diameter 5～6mm, every interval 15～20cm folder cluster fragrant plant mentioned in ancient texts, every bunch of fragrant plant mentioned in ancient texts weighs 10～15g, and the seedling rope is hung on the bamboo raft, hang a seedling rope every 30～40cm, keep the seedling rope to be positioned at 30～50cm place under water.
Hang rope results between foster fragrant plant mentioned in ancient texts employing, the mode that a rope is filled the gaps with seedlings is regulated fragrant plant mentioned in ancient texts density.Initial the hanging of fragrant plant mentioned in ancient texts supported the about 150kg/ mu of density, first fragrant plant mentioned in ancient texts of gathering behind the 30d, and rope is gathered between employing, and every two adjacent seedling ropes are gathered 1, keep 1, and the seedling rope after gathering is by the density covering fragrant plant mentioned in ancient texts seedling of 75kg/ mu.After this gather 1 time every 25d, the fragrant plant mentioned in ancient texts of gathering is the fragrant plant mentioned in ancient texts of not receiving last time, and the density with 75kg/ mu covers the fragrant plant mentioned in ancient texts seedling equally again.If the day growth rate of fragrant plant mentioned in ancient texts is in 3%, the about 100kg of the fragrant plant mentioned in ancient texts amount of gathering for the first time then, the about 300kg of the amount of the gathering second time, the about 250kg of the amount of gathering at every turn later on.The cultivation density of fragrant plant mentioned in ancient texts is 230～490kg/ mu under the normal circumstances.
Claims (4)
1, the biological renovation method of pond, subtropics eutrophication is characterized in that its step is
1), the plant of selecting to be used for pond, subtropics eutrophication biological restoration is selected from the river hedge;
2), the plant that will be used for pond, subtropics eutrophication biological restoration hangs the raft frame of supporting at pond water, its initial hanging is supported density less than 300kg/ mu;
3), gathered 1 time every 15～35 days, every two adjacent seedling ropes are gathered 1, the seedling rope covering seedling after gathering, and cultivation density is less than 600kg/ mu.
2, the biological renovation method of pond, subtropics as claimed in claim 1 eutrophication is characterized in that said river hedge is selected from least a kind in radial striations river hedge or the numerous principal deformation kind of Gracilaria tenuistipitata.
3, the biological renovation method of pond, subtropics as claimed in claim 1 eutrophication is characterized in that initially hanging that to support density be 100～200kg/ mu.
4, the biological renovation method of pond, subtropics as claimed in claim 1 eutrophication is characterized in that cultivation density is 200～600kg/ mu.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100065888A CN1255336C (en) | 2004-03-11 | 2004-03-11 | Method for biological repairing eutrophication of subtropical zone caltivate pond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100065888A CN1255336C (en) | 2004-03-11 | 2004-03-11 | Method for biological repairing eutrophication of subtropical zone caltivate pond |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1559935A CN1559935A (en) | 2005-01-05 |
| CN1255336C true CN1255336C (en) | 2006-05-10 |
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ID=34439813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100065888A Expired - Fee Related CN1255336C (en) | 2004-03-11 | 2004-03-11 | Method for biological repairing eutrophication of subtropical zone caltivate pond |
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| Country | Link |
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| CN (1) | CN1255336C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100377640C (en) * | 2005-03-24 | 2008-04-02 | 宁波大学 | Method of improving ecological environment of enclosed seawater pond |
| CN100484893C (en) * | 2005-12-30 | 2009-05-06 | 中国科学院海洋研究所 | Integrated ecology renovation method for extratropical eutrophication marine site |
| CN101306880B (en) * | 2008-07-01 | 2010-10-06 | 浙江大学 | Process for harnessing eutrophication water body by interplanting plant on water |
| CN103814852B (en) * | 2014-03-10 | 2015-05-27 | 国家海洋局第三海洋研究所 | Regulation control method for preventing oxygen deficiency at night in gracilaria and prawn ecological cultivation |
| CN107750936B (en) * | 2017-12-12 | 2023-03-10 | 山东农业大学 | Small-sized leguminous plant water culture device |
-
2004
- 2004-03-11 CN CNB2004100065888A patent/CN1255336C/en not_active Expired - Fee Related
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|---|---|
| CN1559935A (en) | 2005-01-05 |
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Granted publication date: 20060510 |