CN102405825B - Ecological recovering method of sublittoral zone Zosteraceae sea grass bed - Google Patents
Ecological recovering method of sublittoral zone Zosteraceae sea grass bed Download PDFInfo
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- CN102405825B CN102405825B CN201110205743.9A CN201110205743A CN102405825B CN 102405825 B CN102405825 B CN 102405825B CN 201110205743 A CN201110205743 A CN 201110205743A CN 102405825 B CN102405825 B CN 102405825B
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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
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- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
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Abstract
The invention relates to a recovering and rebuilding technique of a sea grass bed, in particular to a ecological recovering method of a sublittoral zone Zosteraceae sea grass bed, which is characterized in that: clay and fine sand are made into mud barrel, Zosteraceae plants are filled inside the mud barrel, the mud barrel is fulfilled with fine sand, an opening of the mud barrel is sealed, the mud barrel with the Zosteraceae plants is thrown into an appropriate sea area so as to carry out the ecological recovery of the Zeosteraceae sea grass bed, and the density of the Zosteraceae is 50 to 200 per square meters. Due to the adoption of the ecological recovering method, the problem that sea grass is difficult to transplant in deep seabed of the sublitoral zone can be solved, and the recovery or rebuilding of deep sea Zosteraceae sea grass bed can be conveniently and rapidly carried out by also adopting a simple and effective Zosteraceae transplanting method. Materials utilized in the method are free from polluting the sea are.
Description
Technical field
The present invention relates to sea grass bed recovers and reconstruction technique, specifically a kind of ecological recovering method of sublittoral zone Zosteraceae sea grass bed.
Background technology
Sea grass bed (Seagrass meadows) ecosystem is considered to the large typical Marine ecosystems in coastal waters three together with mangrove forest, coral reef ecologic system.And international research result shows, sea grass bed Ecosystem Service Value is apparently higher than the Ecosystem Service Value of mangrove forest and karang.Sea grass is unique angiosperm being submerged under shallow sea water, differentiates the organs such as root, stem, leaf, flower and seed.Sea grass bed in great numbers, as the forest of land, is the important symbol of healthy ocean environment, is precious " grassland, seabed " or " submarine forest ".Sea grass bed is high productivity district, can provide good habitat, nursery and protection ground for marine organisms such as fish shrimp crab shellfishes, is also conducive to perching of seabird; Simultaneously for many biologies provide important food source.Sea grass bed is also that on the earth, one of system is caught and sealed up for safekeeping to the most effective carbon, and UNO (United Nations Organization) is thought: the most urgent action of reply climate change is maintain and recover " blue carbon " and converge, and sea grass is given priority to together with mangrove forest, sabkha.
Northern China temperate zone marine site, especially Shandong coastal waters are the sea grass important regions that distributes.Sea tangle (Zostera marina L.) is a kind of sea grass that the coastal distribution of northern China is the widest, quantity is maximum, and is only distributed in marine site, northern China temperate zone, as coastal waters such as Shandong, Hebei and Liaoning.Sea tangle sea grass bed is the good place that the marine economy biologies such as sea cucumber, shellfish (comprising octopus), shrimp crab class and fish are perched, bred and hide oneself.Sea tangle is per nnial herb, and main sinking is born in the mild argillo arenaceous shallow water of physical features seabed, and the shallow water area from tideland to subtidal zone all has distribution, and maximum water depth can reach 30m, and its leaf is elongated is banded, is commonly called as Herba Triglochinis, and Ye Changke reaches more than 3 meters.
In marine site, northern China temperate zone, as Shandong coastal waters, sea tangle sea grass bed is once very in great numbers, serious degradation now, and the sparse block distribution that is of sea grass, is not mostly linked to be sheet.In northern China, the conventional sea tangle sea grass of coastal fisherman makes to build the material on top, house.Sea grass room is the exclusive significant folk custom symbol in northern Shandong, is also considered in the world one of the most representative ecological folk house, is mainly distributed in the coastlands such as Weihai, Yantai, Qingdao.This illustrates that from another side sea grass was how in great numbers in the past, and the now is but stayed very few.According to estimates, Shandong coastal waters sea tangle sea grass bed has been degenerated more than 80%.
For a long time, the vital role of sea grass in ocean do not obtain enough attention, and sea grass bed area declines in the world, many marine sites are on the brink of extinction, and injure other halobiontic existence, and species diversity also decreases, and it is more fragile that the littoral ecosystem also becomes.
In recent years, people start to recognize the vital role of sea grass in Marine ecosystems, start to pay attention to the protection to the sea grass ecosystem and the ecological recovery to the sea grass ecosystem of degenerating.At present, relevant subtidal zone is still weak compared with deepwater field seabed sea tangle sea grass transplanting technology, lacks easy implantation method fast and effectively.
Summary of the invention
The object of the invention is for subtidal zone provides a kind of sea tangle sea grass bed ecological recovery method compared with the recovery of deepwater field seabed sea tangle or reconstruction, adopt the present invention to overcome the problem of carrying out sea grass transplanting difficulty in seabed, subtidal zone waters.
For achieving the above object, the technical solution used in the present invention is:
A kind of ecological recovering method of sublittoral zone Zosteraceae sea grass bed, it is characterized in that: the mud cylinder of one end sealing being made with the mixture of clay and fine sand specified proportion, its medium clay soil accounts for 75%, and fine sand accounts for 25%, the thick 15-20 millimeter of mud barrel, mud cylinder internal diameter 40-50 millimeter; The root of sea tangle plant is fixed on elongated small stone with degradable cord and puts into mud cylinder, in mud cylinder, fill fine sand lute nozzle portion; Degradable cord tighten in the middle of mud drum outer wall, then throws into the mud cylinder that sea tangle plant is housed marinely, and the density of sea tangle is every square metre of 50-200.
Mud cylinder is cylindrical tube shape, the thick 20-25 millimeter in mud cylinder bottom.
It makes material source in degradable vegetable material cord used, in seawater, can degrade gradually through the time of 3-5 month, and the thick 1-2.5 millimeter of cord.
Stone is the stone of ellipsoid shape to strip, and its weight is 50-150 gram.
After sea tangle plant gathers, cut the bizet of sea tangle, make the height of sea tangle below 25 centimetres.
Direction along stone major axis ties up to the root of sea tangle on stone with cord, ties up 1-3 sea tangle plant on every block of stone.
The sea tangle plant root being fixed on small stone is put into mud cylinder, the root that makes sea tangle plant is positioned at mud cylinder and stem and the leaf of sea tangle plant are exposed at mud cylinder outside, then in mud cylinder, fill fine sand, and with the oral area of foundry loam lute cylinder, last the mud cylinder that sea tangle plant is housed is thrown into marinely in suitable sea area, carried out the ecological recovery of sea tangle sea grass bed.
The invention has the beneficial effects as follows:
1, by the present invention, make mud cylinder with the mixture of clay and fine sand, in the middle of mud drum outer wall, use cord tighten, the sea tangle plant that root is fixed on small stone is put into mud cylinder, then the plainly-packed full fine sand of mud, and with foundry loam lute nozzle portion, finally in suitable sea area, the mud cylinder that sea tangle plant is housed is thrown into marine.Such effect is, when mud cylinder arrives behind seabed, seawater slowly soaks into mud cylinder, is tied with cord in the middle of mud cylinder, the root of sea tangle plant can be covered to greatest extent guaranteeing after mud cylinder is soaked into by seawater.Therefore, sea tangle plant root is fixed on small stone, and root top is covered with silt simultaneously, make sea tangle plant can not float with ocean current, the growth and self the very strong ability of taking root that rely on sea tangle make sea tangle plant be survived and take root and are fixed on seabed, and form gradually grassland simultaneously.
2, in the present invention, material therefor cord is degradable vegetable material, and as cotton cord, the rope made of hemp, such cord will be degraded gradually in briny environment after the several months, thereby can not form pollution to ocean environment.
3, by the present invention, overcome seabed, subtidal zone waters sea tangle and cultivated difficult problem, the invention provides a kind of easy, subtidal zone is compared with the building method of deepwater field seabed sea tangle sea grass bed fast and effectively.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment 1
Use method of the present invention to carry out the transplanting of subtidal zone sea tangle and the recovery of sea grass bed and rebuild test in bay, Shandong.
The making of mud cylinder: mud cylinder is cylindrical tube shape, makes with clay and fine sand, and its medium clay soil accounts for 75%, fine sand (20-40 order) accounts for 25%, thick 18 millimeters of mud barrel, 45 millimeters of mud cylinder internal diameters, thick 20 millimeters of mud cylinder bottom, mud drum outer wall is middle with 2 millimeters of thick thin cotton cord tightens.While making mud cylinder, after clay and fine sand are mixed, add appropriate water and stir, under the assistance of mould, make mud cylinder, after mud cylinder dries, can use.
Other material therefors are as follows: 1. thin cotton cord (2 millimeters thick, is placed in seawater, at 20 DEG C, through degraded in three months); 2. the ellipsoid shape that collect on seashore is to the small stone (weight range is 80-120 gram) of strip; 3. fresh and alive sea tangle plant, is collected in natural waters, cuts the bizet of sea tangle, and the height that makes sea tangle is 20 centimetres.
Sea tangle experiment in cultivation process is as follows: with thin cotton cord, the root of sea tangle plant is tied up on small stone, along the direction of stone major axis, the root of sea tangle is tied up on stone with thin cotton cord, tie up 2 sea tangle plant on every block of stone.By ship to suitable sea area, the sea tangle plant root that root is fixed on small stone is put into mud cylinder, make sea tangle plant root be positioned at mud cylinder and the stem of sea tangle and leaf are exposed at mud cylinder outside, and fill fine sand in mud cylinder, then use foundry loam lute nozzle portion, finally mud cylinder is thrown into marinely, carried out the ecological recovery of sea tangle sea grass bed, the density of sea tangle plant is every square metre of 50-200.
Carried out sea tangle cultivation at test sea area subtidal zone compared with ballow (depth of water is 3～6 meters) the Mays of 2009, the planting density of sea tangle is approximately 90 every square metre, has cultivated altogether 500 square metres.
Test-results is as follows:
At the beginning of 2009 6 months, above cultivated sea tangle is observed, find that the sea tangle overwhelming majority of cultivating all survives, and reproduction strain is bloomed; Observe and measure the July of 2010, find that sea tangle all grows tall, and grow a lot of stem branches, reproduction strain bears seeds.Observe sea tangle surviving rate by diving nearly 80%, 1.5 meters of sea tangle height average out to.
Visible, the test-results of the present embodiment shows, can be recovered easily or rebuild sea tangle sea grass bed in the subtidal zone environments such as subsea of suitable sea tangle growth by simple method involved in the present invention.
Claims (7)
1. an ecological recovering method of sublittoral zone Zosteraceae sea grass bed, it is characterized in that: the mud cylinder of one end sealing being made with the mixture of clay and fine sand specified proportion, its medium clay soil accounts for 75%, and fine sand accounts for 25%, the thick 15-20 millimeter of mud barrel, mud cylinder internal diameter 40-50 millimeter; The root of sea tangle plant is fixed on elongated small stone with degradable cord and puts into mud cylinder, in mud cylinder, fill fine sand lute nozzle portion; Degradable cord tighten in the middle of mud drum outer wall, then throws into the mud cylinder that sea tangle plant is housed marinely, and the density of sea tangle is every square metre of 50-200.
2. according to sea tangle sea grass bed ecological recovery method claimed in claim 1, it is characterized in that: mud cylinder is cylindrical tube shape the thick 20-25 millimeter in mud cylinder bottom.
3. according to sea tangle sea grass bed ecological recovery method claimed in claim 1, it is characterized in that: it makes material source in degradable vegetable material cord used, in seawater, can degrade gradually through the time of 3-5 month, the thick 1-2.5 millimeter of cord.
4. according to sea tangle sea grass bed ecological recovery method claimed in claim 1, it is characterized in that: stone is the stone of ellipsoid shape to strip, and its weight is 50-150 gram.
5. according to sea tangle sea grass bed ecological recovery method claimed in claim 1, it is characterized in that: after sea tangle plant gathers, cut the bizet of sea tangle, make the height of sea tangle below 25 centimetres.
6. according to the sea tangle sea grass bed ecological recovery method described in claim 1,4 or 5, it is characterized in that: the direction along stone major axis ties up to the root of sea tangle cord on stone, ties up 1-3 sea tangle plant on every block of stone.
7. according to sea tangle sea grass bed ecological recovery method claimed in claim 6, it is characterized in that: the sea tangle plant root being fixed on small stone is put into mud cylinder, the root that makes sea tangle plant is positioned at mud cylinder and stem and the leaf of sea tangle plant are exposed at mud cylinder outside, then in mud cylinder, fill fine sand, and with the oral area of foundry loam lute cylinder, last the mud cylinder that sea tangle plant is housed is thrown into marinely in suitable sea area, carried out the ecological recovery of sea tangle sea grass bed.
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| CN201110205743.9A CN102405825B (en) | 2011-07-15 | 2011-07-15 | Ecological recovering method of sublittoral zone Zosteraceae sea grass bed |
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| CN102405825B true CN102405825B (en) | 2014-09-03 |
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| CN103210759A (en) * | 2013-03-29 | 2013-07-24 | 同济大学 | Planting method of submerged plants |
| CN104126374B (en) * | 2013-09-22 | 2016-04-27 | 山东大学（威海） | A kind of field harvesting method of grass wrack seeds |
| CN104770285A (en) * | 2014-01-14 | 2015-07-15 | 中国海洋大学 | Zostera marina young seedling manual culture method |
| CN103918544B (en) * | 2014-04-11 | 2016-01-13 | 中国科学院海洋研究所 | A kind of subtidal zone Zostera marina sowing implantation methods |
| CN104488689A (en) * | 2014-11-12 | 2015-04-08 | 浙江海洋学院 | Artificial algae field cultivation method |
| CN105557498A (en) * | 2015-12-28 | 2016-05-11 | 山东大学（威海） | Ecological restoration method for zostera marina sea grass bed |
| CN105532423B (en) * | 2016-02-26 | 2018-06-22 | 中国科学院南海海洋研究所 | A kind of method in intertidal zone Rapid transplant sea grass |
| CN108739347A (en) * | 2018-05-03 | 2018-11-06 | 中国海洋大学 | A kind of method of eelgrass donor plant acquisition and transplanting |
| CN113080051B (en) * | 2021-03-26 | 2023-10-20 | 厦门海石生态环境股份有限公司 | Method for promoting recovery of shallow sea seaweed bed |
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