CN105557498A - Ecological restoration method for zostera marina sea grass bed - Google Patents

Ecological restoration method for zostera marina sea grass bed Download PDF

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Publication number
CN105557498A
CN105557498A CN201510989753.4A CN201510989753A CN105557498A CN 105557498 A CN105557498 A CN 105557498A CN 201510989753 A CN201510989753 A CN 201510989753A CN 105557498 A CN105557498 A CN 105557498A
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CN
China
Prior art keywords
zostera marina
spray
grass bed
sea grass
sea
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Pending
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CN201510989753.4A
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Chinese (zh)
Inventor
郑凤英
张飞
金艳梅
韩晓弟
张伟
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Shandong University Weihai
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Shandong University Weihai
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Priority to CN201510989753.4A priority Critical patent/CN105557498A/en
Publication of CN105557498A publication Critical patent/CN105557498A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G33/00Cultivation of seaweed or algae
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management

Abstract

The invention relates to an ecological restoration method for a zostera marina sea grass bed. The method comprises the steps of collecting zostera marina flowering branches with seeds about to be mature and fixing the 2-5 flowering braches to a small stone; throwing the flowering branches into a to-be-restored sea area at an interval of 2mx2m; and performing ecological restoration of the zostera marina sea grass bed with a method for seedling direct planting after the seeds on the flowering branches are naturally mature, fall into the sea area and germinate by themselves. The technology is low cost and simple in operation; the destructive effect on a seed source grass bed is extremely small; and the restoration method meets natural growth and population expansion laws of zostera marina.

Description

A kind of ecological restoring method of Zostera marina sea grass bed
Technical field
The present invention relates to sea grass bed Conservation and restoration technology, specifically a kind of ecological restoring method of Zostera marina sea grass bed.
Background technology
Zostera marina (Zosteramarina) is the representative species of temperate zone, Northern Hemisphere sea grass, the sociales of yellow marine site, sea grass area, Bohai Sea silt substrate littoral sea grass group of Ye Shi China.Zostera marina sea grass bed is the sea grass bed that Northern Hemisphere distribution is the widest, area is maximum, and it has extremely important Ecosystem Service, is that Offshore Waters and bed mud quality maintain, bio-diversity is safeguarded and fishery resources continue the important leverage of output.Because the mankind are to offshore sea waters interfering activity frequently in the last hundred years, Zostera marina sea grass bed is serious in global recession, and in China more very, investigation display Zostera marina grassland, Shandong Province is disappearing at least 80% over nearly 30 years.Current investigation shows, now only there is the sea grass bed of 400ha sea grass area, the Chinese Yellow Bohai Sea, based on Zostera marina sea grass bed, wherein, several Zostera marina sea grass beds that area is larger only have 5, Shandong Rongcheng Swan Lake (191ha) respectively, Dalian From Zhangzi Islands China (100ha), Sang Gou gulf, Rongcheng, Shandong (60ha), Li Dao gulf, Rongcheng, Shandong (30ha), twin islet gulf, Weihai (5ha), and in Yantai city, Dongying Kenli County, Laizhou City's Laizhou Wan, Qingdao Urban Area, Chengshantou, Rongcheng, the marine sites such as Weihai Bay only have fragmentary Zostera marina distribution, area is all at below 1ha.Visible; China's Zostera marina sea grass bed decline is extremely serious; on the one hand; a large amount of Zostera marina sea grass beds disappears completely; on the other hand; Habitat Fragmentation causes existing population patch and Small Population; such Small Population poor stability; self-aggrandizement ability is very limited; make the Zostera marina sea grass bed group that remains also precarious; therefore, utilizing ecological engineering technology to help these Small Populations to carry out expansion is rapidly a kind of effective Zostera marina protection and restorative procedure, and the recovery technique of this respect is still weak both at home and abroad at present.
Summary of the invention
The Zostera marina sea grass bed that the object of the invention is for degenerating provides a kind of effective ecological recovery method, to overcome the small-sized sea grass bed stability of community difference and clear-cutting forestland problem slowly that Zostera marina Small Population builds.
For achieving the above object, the technical solution used in the present invention is:
A kind of ecological recovery method of Zostera marina sea grass bed, gather Zostera marina spray, spray is fixed on finger stone, then spray is dropped in sea area to be repaired, sprout voluntarily after utilizing seed physical maturity on spray to come off to fall into marine site, the method for then seedling direct planting to be to carry out the ecological recovery of Zostera marina sea grass bed.
Described Zostera marina spray is that seed is about to ripe spray, gathers in the 6-7 month;
Described spray fixing means is: be bundled in by the upright stalk of 2-5 strain spray on one piece of finger stone;
The method that described spray drops into sea area is: with the spacing of 2m × 2m, spray is dropped into sea area in the suitable marine site at edge, grassland to be repaired.
The invention has the beneficial effects as follows: 1) gather seed and carry out sea grass bed reparation by ripe spray in object marine site, minimum to the destructiveness on provenance grassland; 2) put into after spray being gathered and repair marine site, seed on spray physical maturity can come off and fall into marine site, sprout generation seedling voluntarily in spring next year, be colonizated in marine site, meet Zostera marina self-sow rule, decrease manual operation to seed and the damage probability just sprouting seedling; 3) this technical costs is low, simple to operate.
Embodiment
A kind of low cost of the present invention, the simple to operate and ecological restoring method of effective Zostera marina sea grass bed.Comprise following examples, the following examples can further illustrate the present invention, but do not limit the present invention in any way.
Embodiment 1
An ecological restoring method for Zostera marina sea grass bed, concrete grammar is:
Gather seed in by the end of June, 2012 in twin islet gulf, Weihai in Shandong province and be about to ripe Zostera marina spray;
On the spot by spray with every two strains be one group of tighten on one piece of finger stone, simultaneously on stone, tie up one section of color ribbon so that observe;
To often organize spray and drop into a discarded shrimp pond southern side 500m in this sea area very soon 2marine site, input spacing is 2m × 2m.The background in this pond is as follows: though there is Zostera marina to survive in pond, is about 500m by southern side 2marine site does not grow this grass, and our investigation display, in 4 years of 2008-2012, the Zostera marina population of north side fails to be expanded to southern side always.
The 3-5 month in 2013 according to mark colored ribbon, Zostera marina seedling is carried out to recovery sea area and sprout observation, find that almost each gauge point all has seedling to sprout, carry out seedling growth and survival investigation in June, 2013, find that the gauge point of 83% still has seedling to survive, the gauge point in spring 54% in 2014 observed the appearance of spray, in June, 2015, investigation display formed 37 little patches of 20cm × 25cm, and grassland instauration effect is better.
Embodiment 2
An ecological restoring method for Zostera marina sea grass bed, concrete grammar is:
Gather seed in by the end of June, 2012 in twin islet gulf, Weihai in Shandong province and be about to ripe Zostera marina spray;
On the spot by spray with every 3 strains be one group of tighten on one piece of finger stone, simultaneously on stone, tie up one section of color ribbon so that observe;
Drop into often organizing spray the sea area that one section, this north side, bay grows without Zostera marina very soon, throw in place and be about 20m apart from this Zostera marina population edge, north side, bay, our investigation display, in 4 years of 2008-2012, this Zostera marina population edge has no obvious expansion, input spacing is 2m × 2m, drops into area and is about 300m 2;
The 3-5 month in 2013 according to mark colored ribbon, Zostera marina seedling is carried out to recovery sea area and sprout observation, find that almost each gauge point all has seedling to sprout, carry out seedling growth and survival investigation in July, 2013, find that the gauge point of 76% still has seedling to survive, the gauge point in spring 53% in 2014 observed the appearance of spray, in June, 2015 investigation display formed 26 little patches, repopulate and grassland area expanding effect all better.
Visible, the result of the test of the present embodiment shows, can be realized the fast quick-recovery on small-sized Zostera marina grassland by straightforward procedure involved in the present invention.

Claims (4)

1. the ecological recovery method of a Zostera marina sea grass bed, it is characterized in that: gather Zostera marina spray, spray is fixed on finger stone, then spray is dropped in sea area to be repaired, sprout voluntarily after utilizing seed physical maturity on spray to come off to fall into marine site, the method for then seedling direct planting to be to carry out the ecological recovery of Zostera marina sea grass bed.
2. by the ecological recovery method of Zostera marina sea grass bed according to claim 1, it is characterized in that: Zostera marina spray is that seed is about to ripe spray, gathers in the 6-7 month.
3., by the ecological recovery method of Zostera marina sea grass bed according to claim 1, it is characterized in that: described spray fixing means is be bundled on one piece of finger stone by the upright stalk of 2-5 strain spray.
4. by the ecological recovery method of Zostera marina sea grass bed according to claim 1, it is characterized in that: the method that spray drops into sea area is with the spacing of 2m × 2m, spray is dropped into sea area in the suitable marine site at edge, grassland to be repaired.
CN201510989753.4A 2015-12-28 2015-12-28 Ecological restoration method for zostera marina sea grass bed Pending CN105557498A (en)

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CN201510989753.4A CN105557498A (en) 2015-12-28 2015-12-28 Ecological restoration method for zostera marina sea grass bed

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Application Number Priority Date Filing Date Title
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Publication number Priority date Publication date Assignee Title
CN105191780A (en) * 2015-11-09 2015-12-30 中国科学院海洋研究所 Natural ripening accelerating and sowing method and device for subtidal eelgrass reproductive plant
CN107318637A (en) * 2017-06-07 2017-11-07 江苏长龙国际贸易有限公司 A kind of restoration methods of shallow sea sea grass bed
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

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Publication number Priority date Publication date Assignee Title
CN105191780A (en) * 2015-11-09 2015-12-30 中国科学院海洋研究所 Natural ripening accelerating and sowing method and device for subtidal eelgrass reproductive plant
CN105191780B (en) * 2015-11-09 2018-06-19 中国科学院海洋研究所 A kind of subtidal zone eelgrass reproduction strain nature accelerating and type of seeding and device
CN107318637A (en) * 2017-06-07 2017-11-07 江苏长龙国际贸易有限公司 A kind of restoration methods of shallow sea sea grass bed
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

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Application publication date: 20160511