CN109997752A - A kind of synchronous intensive culture pool and cultural method for realizing crab volume increase and purification of water quality reuse - Google Patents
A kind of synchronous intensive culture pool and cultural method for realizing crab volume increase and purification of water quality reuse Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 238000000746 purification Methods 0.000 title claims abstract description 25
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 12
- 235000015170 shellfish Nutrition 0.000 claims abstract description 17
- 239000000758 substrate Substances 0.000 claims abstract description 17
- 235000013311 vegetables Nutrition 0.000 claims abstract description 11
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims abstract description 4
- 241000196324 Embryophyta Species 0.000 claims description 63
- 241001113556 Elodea Species 0.000 claims description 10
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical compound [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 claims description 10
- 230000012010 growth Effects 0.000 claims description 10
- 241000498251 Hydrilla Species 0.000 claims description 9
- 241001123263 Zostera Species 0.000 claims description 9
- 238000009332 manuring Methods 0.000 claims description 5
- 241000195493 Cryptophyta Species 0.000 claims description 4
- 238000012136 culture method Methods 0.000 claims description 4
- 238000009331 sowing Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 230000004083 survival effect Effects 0.000 description 3
- 235000005273 Canna coccinea Nutrition 0.000 description 2
- 240000008555 Canna flaccida Species 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 2
- 241000238557 Decapoda Species 0.000 description 2
- 241001633663 Iris pseudacorus Species 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical group [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000009360 aquaculture Methods 0.000 description 2
- 244000144974 aquaculture Species 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
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- 238000004064 recycling Methods 0.000 description 2
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- 241000293268 Astragalus chinensis Species 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- 241000193879 Corbicula fluminea Species 0.000 description 1
- 241000371997 Eriocheir sinensis Species 0.000 description 1
- 240000008436 Ipomoea aquatica Species 0.000 description 1
- 235000019004 Ipomoea aquatica Nutrition 0.000 description 1
- 244000050427 Melilotus officinalis subsp suaveolens Species 0.000 description 1
- 235000000839 Melilotus officinalis subsp suaveolens Nutrition 0.000 description 1
- 241000237536 Mytilus edulis Species 0.000 description 1
- 240000008881 Oenanthe javanica Species 0.000 description 1
- 235000000365 Oenanthe javanica Nutrition 0.000 description 1
- 244000236458 Panicum colonum Species 0.000 description 1
- 235000015225 Panicum colonum Nutrition 0.000 description 1
- 244000143231 Scirpus validus Species 0.000 description 1
- 235000008573 Scirpus validus Nutrition 0.000 description 1
- 244000275012 Sesbania cannabina Species 0.000 description 1
- 241000219793 Trifolium Species 0.000 description 1
- 240000001398 Typha domingensis Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000035568 catharsis Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000009246 food effect Effects 0.000 description 1
- 235000021471 food effect Nutrition 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 235000020638 mussel Nutrition 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
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- 230000001932 seasonal effect Effects 0.000 description 1
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- 230000000007 visual effect Effects 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G33/00—Cultivation of seaweed or algae
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/50—Culture of aquatic animals of shellfish
- A01K61/59—Culture of aquatic animals of shellfish of crustaceans, e.g. lobsters or shrimps
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
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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
- Y02A40/81—Aquaculture, e.g. of fish
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biodiversity & Conservation Biology (AREA)
- Environmental Sciences (AREA)
- Water Supply & Treatment (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Botany (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Marine Sciences & Fisheries (AREA)
- Biotechnology (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a kind of synchronous intensive culture pool and cultural methods for realizing crab volume increase and purification of water quality reuse, it is detained ditch including pond ontology, Riparian zone, Combined biological floating bed and circular biological, pond ontology includes intermediate high area and surrounding low-lying district, the substrate in the intermediate high area is higher than the substrate of surrounding low-lying district, the substrate in intermediate high area is lower than Riparian zone, cultivates crab in intermediate high area and surrounding low-lying district；Combined biological floating bed is located at surrounding low-lying district, and Combined biological floating bed includes the aquatic vegetables flake in upper layer and the aquatic shellfish beds of lower layer's cage；Riparian zone is located at around surrounding low-lying district, and is located between surrounding low-lying district and circular biological delay ditch；Circular biological is detained ditch and is equipped with Inlet and outlet water water pump；Intermediate high area, Riparian zone and circular biological delay ditch plant and are implanted with plant.The present invention also saves cost while saving water resource, is conducive to realize crab cultivation volume increase, reduces feed coefficient, increase economic efficiency.
Description
Technical field
The present invention relates to crab cultivation volume increase and cultivation water cleansing and recyclings, in particular to synchronous to realize crab volume increase and water
The intensive culture of matter cleansing and recycling.
Background technique
The universal terrain configuration in crab cultivation field is that centre is deep, bank is shallow, and the plantation of submerged plant is usually seedling kind
It plants, depth of water higher depth is unfavorable for the plantation and growth of seedling.Common submerged plant (waterweed, eel grass, black algae etc.) often arrives
3-4 month is just able to achieve seedling cultivation, and the crab launched since month at beginning of the year 1-2, disturbance and predation can plant heavy water
Object determines root and the growth of seedling has a adverse impact, so as to cause long bad, the water degradation of crab pool water plant.In addition, cultivation
Pond planting is generally relatively simple, and the water plant of plantation is mainly waterweed, dead can decompose in summer high temperature, consume water
Middle dissolved oxygen simultaneously discharges nutritive salt and leads to water degradation.According to investigations, at present in aquaculture process mainly using dispensing feed
Mode carries out feeding, and less using high-quality bait as water plant, only about 9.1% and of nitrogen, phosphorus contained in feed
17.4% is assimilated by fish, and poor efficiency needs to launch more bait to meet the growth of crab, and remaining feed and aquatic dynamic
Object excreta will lead to water degradation, be the main source of organic matter and nitrogen, phosphorus in breeding wastewater.Poor water quality is further again
It will affect the growth of crab, so as to form vicious circle.
Current existing crab cultivation technology is not able to achieve good cultivation yield increase effect, cultivated crabs pool water quality inferiority, water quality
Lift technique and water resource recycle utilization lack it is reasonable use, do not make crab cultivation play its huge economy
Benefit and sustainable society service function.
Summary of the invention
Goal of the invention: crab volume increase and the purification of water quality reuse of the cultivated crabs pool are realized in order to synchronize, the present invention provides a kind of same
Step realizes the intensive culture pool and the cultural method of crab volume increase and purification of water quality reuse.
Technical solution: a kind of synchronous intensive culture pool for realizing crab volume increase and purification of water quality reuse, including pond sheet
Body, Riparian zone, Combined biological floating bed and circular biological are detained ditch, and pond ontology includes intermediate high regional and surrounding low-lying district,
The substrate in the intermediate high area is higher than the substrate of surrounding low-lying district, and the substrate in intermediate high area is lower than Riparian zone, intermediate highland
Crab is cultivated in area and surrounding low-lying district；Combined biological floating bed is located at surrounding low-lying district, and Combined biological floating bed includes upper layer
Aquatic vegetable growing area and the aquatic shellfish beds of lower layer's cage；Riparian zone is located at around surrounding low-lying district, and it is low to be located at surrounding
Hollow area and circular biological are detained between ditch；Circular biological is detained ditch and is equipped with Inlet and outlet water water pump；Intermediate high area, Riparian zone and circulation
Ecostagnation ditch, which is planted, is implanted with plant.
Further, intermediate high area height 0.4 ~ 0.8m, the low-lying 1.2 ~ 1.3m of depth of surrounding.
Further, intermediate high land area accounts for the 50% of pond bulk area.
Further, the area of Combined biological floating bed accounts for the 50% of surrounding low-lying district area.
Further, a variety of submerged plants of combination plantation are inlayed in the high area in the centre；Intermediate high area is low-lying with surrounding
Purse seine is equipped between area.
Further, the Riparian zone density combination, alternate collocation green manuring plant and/or hygrophyte.
Further, the aquatic vegetables flake in the combined biological floating bed upper layer plants economic aquatic plant, lower layer
The aquatic shellfish beds of cage is equipped with cage net, and the cage net is the double-layer structure made of fishing net, the aquatic shellfish of cultivation in cage net.
Further, it includes bottom and side slope that circular biological, which is detained ditch, and watermifoil is planted in bottom, and watermifoil covers bottom
70%, segmentation plantation hygrophyte in side slope, the planting density of hygrophyte is 15-20 plants/m；Circular biological is detained wide on ditch
1.2m, high 0.6m, the gradient of side slope are 60 °.
A kind of synchronous intensive culture method for realizing crab volume increase and purification of water quality reuse, comprising the following steps:
(1) in spring, the pond ontology depth of water is controlled in 0.3 ~ 0.5m, a variety of heavy water of combination plantation is inlayed in intermediate high area and plants
Object, sets up purse seine around intermediate high area, puts into crab seedling in surrounding low-lying district；It is planted on combined biological floating bed upper layer
Aquatic vegetable, cultivated shellfish in lower layer's cage net；
(2) in summer, the pond ontology depth of water is controlled in 1.0 ~ 1.2m, removes purse seine；
(3) after cultivating, the intrinsic water in pond is drained, and the substrate mud scum of pond ontology is pumped to Riparian zone, it will
After mud scum sunning, combined using density, green manuring plant and/or hygrophyte by the way of alternate collocation.
Further, it includes: 2- that step (1), which inlays the method that a variety of submerged plant seedling are planted in combination in intermediate high area,
Plant waterweed March, 3-5 month interval sowing eel grass transplants hydrilla verticillata, submerged plant covering in the summer period of river crab growth
Rate reaches 50%, wherein waterweed 30%, eel grass 10%, hydrilla verticillata 10%.
It is provided by the invention a kind of synchronous to realize that crab volume increase and purification of water quality are returned the utility model has the advantages that the prior art that compares
The intensive culture pool and cultural method have given full play to a variety of biological group purification of water quality energy with ecological engineering principle
Power, promotes the water quality of culture pond, and sewage purification and reuse also saves cost, suitable Ecology ring while saving water resource
Border and nutritional condition are conducive to realize crab cultivation volume increase, and good water plant bait reduces while improving crab quality
Feed coefficient and improve economic benefit.The present invention is able to achieve the sustainable of system while generating higher economic benefit
Social service function.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram on synchronous intensive culture pool for realizing crab volume increase and purification of water quality reuse；
Fig. 2 is the schematic diagram of pond basal structure；
Fig. 3 is combined biological floating bed schematic diagram；
Fig. 4 is the schematic diagram that circular biological is detained ditch.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples.
As shown in Figure 1, the synchronous intensive culture pool for realizing crab volume increase and purification of water quality reuse includes pond ontology, bank
Sideband 3, Combined biological floating bed 4 and circular biological are detained ditch 5, and pond ontology includes the high area 2 of surrounding low-lying district 1 and centre,
The substrate in the intermediate high area 2 is higher than the substrate of surrounding low-lying district 1, and the substrate in intermediate high area 2 is lower than Riparian zone 3, intermediate
Crab is cultivated in high area 2 and surrounding low-lying district 1；Combined biological floating bed 4 is located at surrounding low-lying district 1, Combined biological floating bed 4
Including the aquatic vegetables flake 41 in upper layer and the aquatic shellfish beds 42 of lower layer's cage；Riparian zone 3 is located at surrounding low-lying district 1 week
It encloses, and is located between surrounding low-lying district 1 and circular biological delay ditch 5；Circular biological is detained ditch 5 and is equipped with Inlet and outlet water water pump；It is intermediate
High area 2, Riparian zone 3 and circular biological delay ditch 5 plant and are implanted with plant.
As shown in Fig. 2, described intermediate height 2 height 0.5m of area or so, 1.2 ~ 1.3m of low-lying 1 depth of surrounding.Intermediate highland
2 area of area accounts for the 50% of pond bulk area.The area of Combined biological floating bed 4 accounts for the 50% of 1 area of surrounding low-lying district.In described
Between high area 2 inlay combination and plant a variety of submerged plants；Purse seine is equipped between intermediate high area 2 and surrounding low-lying district 1.
The intensive culture method of synchronous realization crab volume increase and purification of water quality reuse has following in annual Various Seasonal
Operation:
(1) in spring, the pond ontology depth of water is controlled in 0.3 ~ 0.5m, a variety of heavy water of combination plantation is inlayed in intermediate high area and plants
Object, sets up purse seine around intermediate high area, puts into crab seedling in surrounding low-lying district；It is planted on combined biological floating bed upper layer
Aquatic vegetable, cultivated shellfish in lower layer's cage net；
(2) in summer, the pond ontology depth of water is controlled in 1.0 ~ 1.2m, removes purse seine；
(3) after cultivating, the intrinsic water in pond is drained, and the substrate mud scum of pond ontology is pumped to Riparian zone, it will
After mud scum sunning, combined using density, green manuring plant and/or hygrophyte by the way of alternate collocation.
In view of water plant acts on the maintenance of water quality and castering action with the raising to crab, the heavy water of crab cultivation pool is planted
The influence of demand and crab disturbance of the plantation of object to illumination, temperature etc., the cultivating pool substrate landform provided is centre
Height, surrounding is low, and intermediate high area 2 accounts for the 50% of pond ontology, it is generally the case that the different phase that pond water level is grown in crab
Water level shows following features: Seedling Stage (the 1-3 month) depth of water is shallower (0.3m-0.5m), the relatively deep (1.0m- of growth medium (the 6-8 month)
2.0m), the phase is caught since discharge level is minimum, and the Shi Zehui that cleans up the pond is drained.The exercise that different landform is conducive to crab night is living
It is dynamic, and crab can rest at the low-lying depth of water of surrounding and avoid heat when summer high temperature, improve crab yield and quality (crab intolerant to
High temperature).
The method that plantation is combined using embedding plants in the intermediate high area 2, at the shallower place of the culture pond halfpace depth of water
Plantation crab is fond of and to significantly several submerged plants of water purification, including waterweed, hydrilla verticillata and eel grass.In order to
The adverse effect that crab disturbs after preventing plant seedlings from planting uses the form of purse seine by submerged plant kind in water plant initial planting
Growing area is separated with the external world, is provided good condition for the growth of submerged plant, is improved survival rate.And reach vigorous growth in water plant
In period (the 7-8 month), purse seine can be removed, can either guarantee that crab tides over summer high temperature period in this way, and be able to achieve water plant to good
The maintenance effect of good water quality improves crab quality it is also possible that crab can sufficiently use natural plant feed.With hardship
Grass, waterweed carry out based on hydrilla verticillata " three grass " reasonably combined, plant waterweed the 2-3 month, 3-5 month interval sowing eel grass,
The summer period of river crab growth transplants hydrilla verticillata, Compound Water grass seeds group is formed in water body, it is ensured that water plant coverage rate reaches 50%
It controls, wherein waterweed 30%, eel grass 10%, hydrilla verticillata 10%.3 kinds of water plants are rationally inlayed to combination plantation, on the one hand can be
River crab builds more good growing environment, can more resist thermal extremes weather than single cropping waterweed, reduce culture of Chinese mitten crab
Risk.On the other hand, hydrilla verticillata and eel grass can provide part greenfeed source for river crab, reduce feed coefficient, improve economical
Benefit.The flowing that substrate landform is combined with planting conducive to water body, can provide enough dissolved oxygens, while plant itself
Dissolved oxygen can be provided, to improve the yield of crab.
The Riparian zone 3 is located at pond ontology and circular biological is detained between ditch 5, the method for the planting of Riparian zone 3
Are as follows: terminate to need to carry out cultivating pool to clean up the pond disinfection and pond arrangement are cultivated every year, and after cultivation end tail water drains, recommendation will
Pool bottom mud scum is drawn into periphery bank slope, decomposes removal some of the contaminants wait dry, then arranges planting plants, inhaled by plant
Receive the pollutant in removal bed mud.Cultivating pool bank slope bottom can plant the green manure such as Chinese milk vetch, clover, daghestan sweet clover, Gui fiber crops, sesbania
Plant can also plant the hygrophytes such as canna, yellow flag, iris, cattail, be combined using density, the plantation side of alternate collocation
Formula, plantation interval 1m, every 10m, all kinds of intensive plantations 10-15 of plant collocation.It may be either that aquaculture offer is some natural
Food organisms, it may have certain landscape effect；It needs to strengthen management, gathers in time, prevent excessive vegetative growth from becoming feeble and die, influence crab
Deng growth, influence water quality and landscape.
As shown in figure 3, described combined biological floating bed 4, upper layer is aquatic vegetable growing area, plants economic aquatic plant
(such as: water spinach and oenanthe stolonifera) forms " felt pan " columnar structure by root system of plant, neither influences the absorbed nitrogen phosphorus function of plant,
The ability for improving root system trapped particles contact scar object and algae again has positive effect to water correction.Lower region is aquatic
Shellfish beds, the aquatic shellfish of cage filter-feeding (such as: freshwater mussel, Corbicula fluminea) utilize the filter food effect removal particle contact scar of shellfish
Object and algae, and increase substantially by the digestion of shellfish the biodegradability of organic pollutant.Cage net uses fishing net
It is fabricated to double-layer structure, required shellfish biomass and shellfish excess accumulation can be reached, guarantee its survival rate.Pass through
Above-mentioned biological floating bed catharsis not only can remove the pollutants such as crab excrement and nitrogen phosphorus produced by crab cultivation, can also be in not volume
Under conditions of outer addition plus fertilizer and bait, edible aquatic vegetable and seashell products are harvested, increase breeding income.In addition,
Crab can rest at the shading of bottom and avoid heat when summer high temperature, guarantee the survival rate of crab.Biological floating bed coverage rate may be designed as
50% or so of low-lying place's water area.
As shown in figure 4, the circular biological is detained on the embankment that ditch 5 mainly constructs outside cultivating pool, circular biological is stagnant
The visual farm's field condition of the dimensional parameters of ditch 5 is stayed to be adjusted, length is determined by embankment length, and generally upper width takes 1.2m,
High 0.6m, 60 ° of grade of side slope.Circular biological is detained ditch bottom and plants watermifoil, and cover degree is maintained at 70% or so, can divide in side slope
The hygrophytes such as section plantation canna, yellow flag, Scirpus tabernaemontani, planting density suggestion is in 15-20 plants/m.Ditch is detained for circular biological
In plant should avoid its overgrowing, while to remove the plant of decline in time, avoid plant decay and influence water quality.Circulation life
State is detained ditch Inlet and outlet water and mainly completes (water inlet direction is A, water discharging direction B) by water pump, and part water inlet is crab pool sewage
(see water (flow) direction C) partially returns to the crab pool (see water (flow) direction D), partial discharge after circulating purification.
Claims (10)
1. a kind of synchronous intensive culture pool for realizing crab volume increase and purification of water quality reuse, which is characterized in that including pond sheet
Body, Riparian zone, Combined biological floating bed and circular biological are detained ditch, and pond ontology includes intermediate high regional and surrounding low-lying district,
The substrate in the intermediate high area is higher than the substrate of surrounding low-lying district, and the substrate in intermediate high area is lower than Riparian zone, intermediate highland
Crab is cultivated in area and surrounding low-lying district；Combined biological floating bed is located at surrounding low-lying district, and Combined biological floating bed includes upper layer
Aquatic vegetable growing area and the aquatic shellfish beds of lower layer's cage；Riparian zone is located at around surrounding low-lying district, and it is low to be located at surrounding
Hollow area and circular biological are detained between ditch；Circular biological is detained ditch and is equipped with Inlet and outlet water water pump；Intermediate high area, Riparian zone and circulation
Ecostagnation ditch, which is planted, is implanted with plant.
2. the synchronous intensive culture pool for realizing crab volume increase and purification of water quality reuse according to claim 1, feature
It is, intermediate high area the height 0.4 ~ 0.8m, the low-lying 1.2 ~ 1.3m of depth of surrounding.
3. the synchronous intensive culture pool for realizing crab volume increase and purification of water quality reuse according to claim 1, feature
It is, intermediate high land area accounts for the 50% of pond bulk area.
4. the synchronous intensive culture pool for realizing crab volume increase and purification of water quality reuse according to claim 1, feature
It is, the area of Combined biological floating bed accounts for the 50% of surrounding low-lying district area.
5. the synchronous intensive culture pool for realizing crab volume increase and purification of water quality reuse according to claim 1, feature
It is, the high area in centre inlays combination and plants a variety of submerged plants；It is equipped with and encloses between intermediate high area and surrounding low-lying district
Net.
6. the synchronous intensive culture pool for realizing crab volume increase and purification of water quality reuse according to claim 1, feature
It is, the Riparian zone density combination, alternate collocation green manuring plant and/or hygrophyte.
7. the synchronous intensive culture pool for realizing crab volume increase and purification of water quality reuse according to claim 1, feature
It is, the aquatic vegetables flake in combined biological floating bed upper layer plants economic aquatic plant, the aquatic shellfish of lower layer's cage
Culture zone is equipped with cage net, and the cage net is the double-layer structure made of fishing net, the aquatic shellfish of cultivation in cage net.
8. the synchronous intensive culture pool for realizing crab volume increase and purification of water quality reuse according to claim 1, feature
It is, it includes bottom and side slope that circular biological, which is detained ditch, and watermifoil is planted in bottom, and watermifoil covers bottom 70%, is segmented in side slope
Hygrophyte is planted, the planting density of hygrophyte is 15-20 plants/m；Circular biological is detained width 1.2m, high 0.6m, side slope on ditch
The gradient be 60 °.
9. a kind of synchronous intensive culture method for realizing crab volume increase and purification of water quality reuse, which is characterized in that including following
Step:
(1) in spring, the pond ontology depth of water is controlled in 0.3 ~ 0.5m, a variety of heavy water of combination plantation is inlayed in intermediate high area and plants
Object, sets up purse seine around intermediate high area, puts into crab seedling in surrounding low-lying district；It is planted on combined biological floating bed upper layer
Aquatic vegetable, cultivated shellfish in lower layer's cage net；
(2) in summer, the pond ontology depth of water is controlled in 1.0 ~ 1.2m, removes purse seine；
(3) after cultivating, the intrinsic water in pond is drained, and the substrate mud scum of pond ontology is pumped to Riparian zone, it will
After mud scum sunning, combined using density, green manuring plant and/or hygrophyte by the way of alternate collocation.
10. the synchronous intensive culture method for realizing crab volume increase and purification of water quality reuse according to claim 9, special
Sign is that it includes: the 2-3 month to plant her that step (1), which inlays the method that a variety of submerged plant seedling are planted in combination in intermediate high area,
Happy algae, 3-5 month interval sowing eel grass transplant hydrilla verticillata in the summer period of river crab growth, and submerged plant coverage rate reaches
50%, wherein waterweed 30%, eel grass 10%, hydrilla verticillata 10%.
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