CN104429218A - Natural sea-area sowing method of zostera marina seed - Google Patents
Natural sea-area sowing method of zostera marina seed Download PDFInfo
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- CN104429218A CN104429218A CN201310432670.6A CN201310432670A CN104429218A CN 104429218 A CN104429218 A CN 104429218A CN 201310432670 A CN201310432670 A CN 201310432670A CN 104429218 A CN104429218 A CN 104429218A
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Abstract
The invention relates to a natural sea-area sowing method of zostera marina seed, and the method comprises zostera marina seed sowing time, zostera marina seed pretreatment and zostera marina seed sowing. The zostera marina seed is sowed at later autumn. The zostera marina seed pretreatment steps comprise performing immersion disinfection on the zostera marina seed respectively by ethyl alcohol and HgCl2, flushing with aseptic seawater, putting in low-salt aseptic seawater, putting in a dark environment with proper temperature for pre-treating for a period. The zostera marina seed sowing steps comprise uniformly mixing pretreated zostera marina seed with bottom mud or silt, packing into a mesh bag, sealing with a cotton thread, flatly paving seabed, and mutually connecting and fixing the mesh bags by U-shaped iron wires, so as to form a flat-paved carpet type sowing unit. The method is capable of effectively improving the germination rate of the seed, also has extremely good promoting effect on growth of germinated seedlings and plants. By employing the mesh bag for sowing during sowing, complete reserving of the sowed zostera marina seed is guaranteed, and thus the utilization rate of the seed is improved.
Description
Art
The present invention relates to the marine site type of seeding of a kind of seaweed seeds nature, is that kind method is inserted in a kind of grass wrack seeds nature marine site specifically.
Background technology
Sea grass is the aquatic monocotyledon being adapted to marine environment life, has flourishing root system and subterranean stem.Sea grass bed is one of large Ecosystem in coastal waters three, has important Ecology Action and economic worth.As primary producer most important on the earth, sea grass bed provides food and various habitat and spawning ground and protection field for numerous marine organisms.For the littoral ecosystem, sea grass bed catching sediments, stablize bed mud, windproof dyke strengthening, purifying water body, Cycle of nutrients, there is vital effect, often by the microbial administration kind as water quality and ecosystem health in solid carbon (accounting for 15% of the annual carbon capacity of whole marine ecosystems) etc.
Due to the transition of natural conditions and the interference of mankind's activity, the sea grass bed that in world wide, youngster is all is all among decline.In order to recover sea grass resource, various countries researcher have developed many sea grass recovering method and technology, is summed up, and mainly contains Habitat pattern method, plant grafting and planting seed method.Habitat pattern method is exactly by protecting, improving sea grass bed water area water-quality, make it be suitable for the growth of sea grass, thus make sea grass naturally return to undermined state in the past, this is the necessary condition that sea grass bed is repaired, but habitat rehabilitation needs long time, it is a process more slowly; Plant grafting transplants in the marine site of suitable growth to pick up from the sea grass seedling of healthy sea grass bed or the plant of maturation, even directly transplanting sea grass turf, plant transplanting success is high, large stretch of grassland can be formed at short notice, be widely used at present, but it is also quite high to transplant cost, and ecosystem grassland is destroyed large, add that restriction and the amount of labour demanded of traffic condition are large, be unsuitable for the reparation of extensive sea grass bed; Planting seed method plucks seed in the season of seaweed seeds maturation; then in the sowing of suitable seabed; the object recovering sea grass bed is reached by the sprouting of seed and plant strain growth; have keep genetic diversity, resume speed fast, artificially less to the interference of ecosystem grassland, be suitable for the advantages such as scale operation, be the focus of research at present.
But the marine site type of seeding of known at present seaweed seeds nature is mainly directly broadcasted sowing, seed is sticked to the upper sowing of shellfish or by simple planting with sowing machine.Above-mentioned type of seeding Problems existing mainly, one is that seed retention ratio is low, due to the effect of wave and tide, the seaweed seeds utilizing above-mentioned type of seeding to sow easily is washed away by wave or tide, in addition, owing to not taking safeguard measure to sowing seed, the seed of sowing is also easily by other biological, especially seabird searches for food, thus causes sowing seed retention ratio low; Two is sowing seed germination and plant strain growth weak effect, lacks process in early stage, lacks necessary safeguard measure during sowing, thus cause sowing seed germination and plant strain growth weak effect before planting seed.Therefore, the sprouting and the plant strain growth effect that how to improve nature marine site seaweed seeds retention ratio after planting and sowing seed utilize seaweed seeds to carry out impaired sea grass bed to repair key issue in the urgent need to address.
Summary of the invention
In order to the seed retention ratio overcoming the type of seeding existence of existing seaweed seeds nature marine site is low and the deficiency of sowing seed germination and plant strain growth weak effect; the invention provides the marine site type of seeding of a kind of seaweed seeds nature; the marine site type of seeding of a kind of grass wrack seeds nature specifically; the method comprises safeguard measure during pretreatment and the sowing of sowing seed; not only can ensure the whole retentions sowing grass wrack seeds, and grass wrack seeds sprouting and plant strain growth effect can be significantly improved.
The technical solution adopted for the present invention to solve the technical problems is: comprise a kind of grass wrack seeds nature marine site type of seeding that grass wrack seeds sowing time, grass wrack seeds pretreatment and grass wrack seeds are sowed.
The above-mentioned grass wrack seeds sowing time is: the sowing in grass wrack seeds nature marine site should be carried out in autumn end.
Above-mentioned grass wrack seeds pretreatment is: select hard, the vertical rib grass wrack seeds clearly of seed coat, through alcohol-pickled sterilization, then rinse with antiseptic sea water, then use HgCl
2soak, antiseptic sea water rinses, and puts into less salt antiseptic sea water, is placed in pretreatment a period of time under suitable temperature and dark condition.
Above-mentioned grass wrack seeds sowing is: by through pretreated grass wrack seeds with pick up from the bed mud of sowing waters or with sow the kin silt of waters bed mud and mix, stir, load mesh bag, cotton thread seals, then the mesh bag that seed and bed mud are housed is transported to sowing waters, slow being put into by mesh bag sows waters with the wind, tiling seabed, be interconnected with U-shaped iron wire and fix between mesh bag and mesh bag, form tiling carpet type sowing unit, the mesh bag quantity of each sowing unit is advisable with 10 ~ 20.
The invention has the beneficial effects as follows, grass wrack seeds was sowed in the suitable time, and through pretreatment, not only effectively can improve the germination rate of seed, also good facilitation effect is had to the growth of sprouting rear seedling and plant, adopt mesh bag sowing during sowing, the whole retentions sowing grass wrack seeds can be ensured, thus significantly improve the availability of seed.
Embodiment
Below in conjunction with embodiment, the present invention is further described.
As embodiment, when the sowing time is selected, the sowing time in grass wrack seeds nature marine site should carry out in 20 ~ October 31 September, during grass wrack seeds pretreatment, select hard, the vertical rib grass wrack seeds clearly of seed coat, through 75% alcohol-pickled 30s, the antiseptic sea water of the salinity 30 then prepared with distilled water and seawater extract rinses 2 times, then uses 0.1%HgCl
2soak 15min, and then rinse 3 times with above-mentioned antiseptic sea water, put into the antiseptic sea water of salinity 25, to be placed under temperature 15 DEG C and dark condition pretreatment 7 days, during grass wrack seeds sowing, by through pretreated grass wrack seeds with pick up from the bed mud of sowing waters or mix with the kin silt of sowing waters bed mud, stir, loading specification is the gunnysack of 90cm × 120cm, thickness of sowing is 300 ~ 400/square metre, in each gunnysack, the usage amount of bed mud or silt is that when tiling after loading gunnysack, thickness is no more than 5cm, cotton thread seals, then the gunnysack shipping of seed and bed mud or silt will be housed to sowing waters, to cast anchor fixing accommodation, slow being put into by gunnysack sows waters with the wind, tiling seabed, gunnysack is a unit with 20, to be interconnected between gunnysack and gunnysack with U-shaped iron wire and fix in a unit, form tiling carpet type sowing unit.
On October 21st, 2010, utilize a kind of grass wrack seeds nature of the present invention marine site type of seeding, at Swan Lake marine site, Rongcheng City of Shandong Province sowing grass wrack seeds 40,000, thickness of sowing is respectively 200/square metre, 300/square metre, 400/square metre, 500/square metre.On September 30th, 2011, namely after planting 11 months, the plant strain growth situation of sowing Zostera marina is monitored and analyzed.Found that, above-mentioned each thickness of sowing, the average plant incidence of each gunnysack is respectively 14.0%, 16.7%, 18.3%, 25.0%, 13.0%, and the average plant number of each gunnysack is respectively 529 strains, 267 strains, 524 strains, 528 strains, 316 strains.Observe plant strain growth all right, each thickness of sowing all has collateral generation and side shoot seedling to occur, and has basically formed small-sized patch grassland.
Claims (10)
1. a grass wrack seeds nature marine site type of seeding, is characterized in that the sowing in grass wrack seeds nature marine site should be carried out in autumn end; Select hard, the vertical rib grass wrack seeds clearly of seed coat, through alcohol-pickled sterilization, then rinse with antiseptic sea water, then use HgCl
2soak, antiseptic sea water rinses, and puts into less salt antiseptic sea water, is placed in pretreatment a period of time under suitable temperature and dark condition; During grass wrack seeds sowing, mix through pretreated grass wrack seeds with a certain amount of bed mud or silt according to certain density, load mesh bag, cotton thread seals, tiling seabed, be interconnected with U-shaped iron wire and fix, form tiling carpet type sowing unit, the mesh bag quantity of each sowing unit is advisable with 10 ~ 20.
2. a kind of grass wrack seeds nature according to claim 1 marine site type of seeding, is characterized in that described autumn end should between 20 ~ October 31 September.
3. a kind of grass wrack seeds nature according to claim 1 marine site type of seeding, is characterized in that described alcohol and HgCl
2concentration be respectively 75% and 0.1%.
4. a kind of grass wrack seeds nature marine site type of seeding according to claim 1 or 3, is characterized in that the time that described alcohol-pickled and HgCl2 soaks is respectively 30s and 15min.
5. a kind of grass wrack seeds nature according to claim 1 marine site type of seeding, is characterized in that described antiseptic sea water and less salt antiseptic sea water are the seawater being respectively 30 and 15 ~ 25 by the salinity that distilled water and seawater extract are prepared.
6. a kind of grass wrack seeds nature according to claim 1 marine site type of seeding, is characterized in that described suitable temperature is 15 DEG C.
7. a kind of grass wrack seeds nature marine site type of seeding according to claim 1,5 and 6, is characterized in that described pretreatment a period of time is 5 ~ 7 days.
8. a kind of grass wrack seeds nature according to claim 1 marine site type of seeding, is characterized in that described certain density is 300 ~ 400/square metre.
9. a kind of grass wrack seeds nature according to claim 1 marine site type of seeding, is characterized in that described a certain amount of bed mud or silt are that when tiling after bed mud or silt load gunnysack, thickness is no more than 5cm.
10. a kind of grass wrack seeds nature marine site type of seeding according to claim 1 or 9, it is characterized in that described bed mud or silt be pick up from sowing waters bed mud or with the kin silt of sowing waters bed mud.
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| CN201310432670.6A CN104429218A (en) | 2013-09-16 | 2013-09-16 | Natural sea-area sowing method of zostera marina seed |
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| CN105475270A (en) * | 2015-12-03 | 2016-04-13 | 山东大学（威海） | Preservation method of Zostera marina L. seedlings |
| CN105494077A (en) * | 2015-12-23 | 2016-04-20 | 中国海洋大学 | Eelgrass sowing proliferation method |
| CN111713354A (en) * | 2020-07-09 | 2020-09-29 | 新疆农业科学院综合试验场 | Method for interplanting alfalfa and wheat under oasis-desert transition region apricot plum forest |
| CN113615540A (en) * | 2021-08-10 | 2021-11-09 | 中国海洋大学 | Artificial composite matrix, artificially cultured eel grass seedlings, and culture method and application thereof |
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| CN105494077B (en) * | 2015-12-23 | 2018-02-13 | 中国海洋大学 | A kind of eelgrass sows enrichment procedure |
| CN111713354A (en) * | 2020-07-09 | 2020-09-29 | 新疆农业科学院综合试验场 | Method for interplanting alfalfa and wheat under oasis-desert transition region apricot plum forest |
| CN113615540A (en) * | 2021-08-10 | 2021-11-09 | 中国海洋大学 | Artificial composite matrix, artificially cultured eel grass seedlings, and culture method and application thereof |
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Application publication date: 20150325 |