CN116918512A - Method for removing spartina alterniflora and controlling recurrence - Google Patents
Method for removing spartina alterniflora and controlling recurrence Download PDFInfo
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- CN116918512A CN116918512A CN202311028453.0A CN202311028453A CN116918512A CN 116918512 A CN116918512 A CN 116918512A CN 202311028453 A CN202311028453 A CN 202311028453A CN 116918512 A CN116918512 A CN 116918512A
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- 241001149258 Sporobolus alterniflorus Species 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000002689 soil Substances 0.000 claims abstract description 46
- 239000010902 straw Substances 0.000 claims abstract description 20
- 238000003971 tillage Methods 0.000 claims abstract description 16
- 238000004140 cleaning Methods 0.000 claims abstract description 14
- 238000012876 topography Methods 0.000 claims abstract description 13
- 235000014676 Phragmites communis Nutrition 0.000 claims description 8
- 239000002028 Biomass Substances 0.000 claims description 7
- 238000011065 in-situ storage Methods 0.000 claims description 7
- 239000004575 stone Substances 0.000 claims description 7
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 claims description 7
- 241000202758 Scirpus Species 0.000 claims description 6
- 239000004746 geotextile Substances 0.000 claims description 6
- 238000009412 basement excavation Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- 241000196324 Embryophyta Species 0.000 abstract description 3
- 208000035999 Recurrence Diseases 0.000 abstract 1
- 238000006467 substitution reaction Methods 0.000 abstract 1
- 230000018044 dehydration Effects 0.000 description 5
- 238000006297 dehydration reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 3
- 230000004083 survival effect Effects 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002363 herbicidal effect Effects 0.000 description 2
- 239000004009 herbicide Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 241000603257 Bolboschoenus robustus Species 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 241000209504 Poaceae Species 0.000 description 1
- 241000746413 Spartina Species 0.000 description 1
- 230000011681 asexual reproduction Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000032823 cell division Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- MFSWTRQUCLNFOM-SECBINFHSA-N haloxyfop-P-methyl Chemical group C1=CC(O[C@H](C)C(=O)OC)=CC=C1OC1=NC=C(C(F)(F)F)C=C1Cl MFSWTRQUCLNFOM-SECBINFHSA-N 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 230000014639 sexual reproduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D91/00—Methods for harvesting agricultural products
- A01D91/04—Products growing above the soil
-
- 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
- A01G13/00—Protecting plants
-
- 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
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
-
- 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
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
-
- 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
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/20—Cereals
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Botany (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Cultivation Of Plants (AREA)
Abstract
A method for removing spartina alterniflora and controlling recurrence includes such steps as arranging straw stacking field and landfill pit in the spartina alterniflora cleaning region, cutting, recovering and sunning the overground part of spartina alterniflora, digging landfill pit according to topography, pushing the surface soil containing seeds and residual stem root into it, covering soil, compacting, rotary tillage to break stem root, and restoring beach surface by deep soil or external planting soil. The invention mainly utilizes mechanical equipment, is simple and easy to implement, can form strong interference habitat to spartina alterniflora, effectively solves the problem of recrudescence of spartina alterniflora, and simultaneously improves the success rate of plant substitution.
Description
Technical Field
The invention belongs to the field of ecological engineering, and relates to a method for removing spartina alterniflora and controlling recurrence.
Background
The Spartina alterniflora (Spartina alterniflora Loisel) is a perennial herb of the genus Spartina of the family Gramineae. After the spartina alterniflora is introduced into China from the last century, the spartina alterniflora rapidly spreads to coasts of all places due to excellent phenotype plasticity, genetic differentiation capability and high propagation coefficient, and occupies living space of organisms in a local intertidal zone, so that biodiversity is reduced and an ecological system is degraded. In 2003, spartina alterniflora was listed in the first foreign invasive species list in our country, and was listed in the world's most dangerous 100 invasive species list.
Aiming at the ecological problem of spartina alterniflora, the prior art controls through physical, chemical, biological and other modes, but the spartina alterniflora can realize secondary invasion through asexual and sexual propagation. The "mowing+plowing/rotary tillage+vegetation replacement" treatment mode represented by patent number CN103583179a can inhibit the regrowth and diffusion of spartina alterniflora to a certain extent, but cannot eradicate the roots and seeds of stems in the sediment, so that spartina alterniflora can recover and even exceed the original biomass through the compensation effect for 2-3 growing seasons. The herbicide such as the high-efficiency haloxyfop-R-methyl and the cover grass energy represented by the patent number CN113349217B can inhibit cell division and completely inhibit asexual and sexual reproduction of spartina alterniflora, and has the defects that gramineous plants such as reed cannot be planted in the later period due to the use of the herbicide and certain intertidal organisms can be poisoned in a short period. Therefore, there is a need to develop a treatment method that is simple and easy to implement and has little influence on the environment.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a method for removing spartina alterniflora and controlling recurrence.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
a method for removing spartina alterniflora and controlling recurrence includes such steps as arranging straw stacking field and landfill pit in the spartina alterniflora cleaning region, cutting, recovering and sunning the overground part of spartina alterniflora, digging landfill pit according to topography, pushing the surface soil containing seeds and residual stem root into it, covering soil, compacting, rotary tillage to break stem root, and restoring beach surface by deep soil or external planting soil.
Further, the method comprises the following steps:
dividing a clearing area into a plurality of clearing units, arranging straw stacking fields and landfill pits with corresponding scales in areas of high tidal beaches and above of the units, and positioning or clearing beach stones and hard garbage;
step two, selecting artificial or mechanical low tide parcels to cut the aerial parts of the spartina alterniflora from low to high before the flowering period, wherein the stubble on the ground after cutting is not more than 5cm; simultaneously, the straws are concentrated to a stacking field and are used as biomass energy after airing and dehydration for 1-2 weeks or are crushed and then returned to the beach;
and thirdly, excavating a landfill pit after cutting, wherein the depth is 2.0-5.0 m, repairing the side wall into a certain inclined slope, and stacking earthwork between the landfill pit and the straw stacking field in layers. Pushing surface soil with the thickness of not less than 30cm into a landfill pit from low to high by utilizing a wetland bulldozer, and then carrying out in-situ layered backfilling, compaction and earthing, wherein the earthing thickness is at least 1m;
fourthly, after the surface soil is excavated, rotary tillage is carried out on the dense positions of the residual stems and roots of the spartina alterniflora by using a rotary cultivator so as to thoroughly break the stems and roots, wherein the rotary tillage depth is about 30cm to 40cm;
and fifthly, restoring the original shape of the beach surface by adopting excavated deep earthwork or planting soil of an external spartina alterniflora seed warehouse, and after the topography is stable, selecting reed, scirpus maritima and raddeana constant-speed natural vegetation.
Preferably, the topography measurement should be performed after the second step is completed;
preferably, a landfill belt with 4-6 m wide strips can be arranged at intervals of 5m along a shoreline in a low tide area, after the earthing is restored to an original beach surface, the landfill belt is continuously lifted and geotextiles are laid to form wave-dissipating ridges with top widths of 1-3 m and slope ratios of 1:1.5-1:2, and the height of the ridge tops does not exceed the average high tide level.
Preferably, after the third step is completed, an opaque geotextile is laid and fixed on the landfill.
By adopting the technical scheme, the invention has the following beneficial effects:
compared with the traditional spartina alterniflora treatment technology, the invention reduces seed banks and light availability of spartina alterniflora by the strong interference mode of physical control, earthwork replacement and vegetation planting, and radically eliminates the possibility of relapse of the sub banks based on local spartina alterniflora Mi Caochong. The implementation process is environment-friendly, and even if the living beings are affected to a certain extent in a short period, the improvement of the habitat is improved after the treatment is finished, and the affected area is gradually restored.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the following drawings are provided for cooperation:
FIG. 1 is a schematic diagram of a abatement zone layout in accordance with one embodiment of the present invention.
FIG. 2 is a second schematic diagram of the step according to an embodiment of the present invention.
FIG. 3 is a schematic diagram illustrating a third step according to an embodiment of the present invention.
FIG. 4 is a step four schematic diagram of an embodiment of the present invention.
FIG. 5 is a step five schematic diagram of an embodiment of the present invention.
The method comprises the steps of 1-a straw stacking field, 2-a landfill pit position, 3-an spartina alterniflora growth area, 4-spartina alterniflora mowing, 5-straw recovery and airing, 6-landfill pit excavation, 7-stem root pushing in the landfill pit, 8-layered compaction, 9-beach recovery and 10-native plant planting;
it should be noted that the above-mentioned figures illustrate only some embodiments of the invention, and that those skilled in the art will be able to obtain figures of other embodiments from these figures without the exercise of inventive faculty.
Detailed Description
In order to make the objects, technical solutions and advantageous effects of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples. It should be understood that: the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Spatially relative terms, such as "under," "below," "lower," "over," "upper" and the like, may be used for convenience of description to describe one element or feature as illustrated in the figures relative to another element or feature as desired. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "under" or "beneath" other elements or features would then be oriented "over" the other elements or features.
Unless otherwise defined, terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention pertains, and should be understood to have a meaning consistent with the meaning of the related art, except insofar as the present invention is explicitly defined.
In general, the invention may be practiced in the following ways:
dividing a clearing area into a plurality of clearing units, arranging straw stacking fields and landfill pits with corresponding scales in areas of high tidal beaches and above of the units, and positioning or clearing beach stones and hard garbage;
step two, before the flowering period, positioning or cleaning beach stone blocks and hard garbage, and then manually or mechanically cutting the aerial parts of the spartina alterniflora from low to high in low tide, wherein the stubble on the ground after cutting is not more than 5cm; simultaneously, the straws are recovered and concentrated to a stacking yard, and are used as biomass energy after airing and dehydration for 1-2 weeks or are crushed and then returned to the beach;
and thirdly, digging a landfill pit with the depth of 3.0-5.0 m, repairing the side wall into a slope with the ratio of 1:2-1:4, and stacking earthwork in layers. The soil layer with the thickness of not less than 30cm is pushed into a landfill pit and compacted by utilizing a wetland bulldozer to sequentially push the soil containing spartina alterniflora seeds, root systems and stubble from low to high, and then the soil is backfilled in a layered manner in situ and compacted, wherein the thickness of the soil is more than 1m.
Fourthly, after the surface soil is excavated, rotary tillage is carried out on the dense positions of the spartina alterniflora residual root systems by using a rotary cultivator so as to thoroughly break the spartina alterniflora stem roots, wherein the rotary tillage depth is about 30-40 cm.
And fifthly, adopting deep (3-5 m) in-situ earthwork or external planting soil without an interwork Mi Caochong seed bank for restoring the original shape of the beach surface, and after the topography is stable, selecting reed, scirpus maritimus and the like to grow the native vegetation at the same speed.
As shown in fig. 1 to 5, an example of the present invention where the site is located outside the seawall of the port of Shanghai city is as follows:
example 1
Step one, dividing the cleaning area into a plurality of cleaning units with the area of about 1 hectare. Each unit is arranged and excavated in a straw stack yard and a landfill pit in an area with the height of more than 3.0m, and the area is respectively 0.1 hectare and 0.15 hectare;
step two, before the flowering period, positioning or cleaning beach stone blocks and hard garbage, and then manually or mechanically cutting the aerial parts of the spartina alterniflora from low to high in low tide, wherein the stubble on the ground after cutting is not more than 5cm; simultaneously, the straws are recovered and concentrated to a stacking yard, and are used as biomass energy after airing and dehydration for 1-2 weeks or are crushed and then returned to the beach;
and thirdly, excavating a landfill pit with the depth of 3.0m, repairing the side wall into a 1:3 inclined slope, and stacking earthwork in layers according to 0.5 m. The soil layer with the thickness of not less than 30cm is pushed into a landfill pit and compacted by utilizing a wetland bulldozer to sequentially push the soil containing spartina alterniflora seeds, root systems and stubble from low to high, and then the soil is backfilled in a layered manner in situ and compacted, wherein the thickness of the soil is more than 1m.
Fourthly, after the surface soil is excavated, rotary tillage is carried out on the dense positions of the spartina alterniflora residual root systems by using a rotary cultivator so as to thoroughly break the spartina alterniflora stem roots, wherein the rotary tillage depth is about 30 cm.
And fifthly, adopting deep earthwork or external planting soil without an intertexture Mi Caochong sub-warehouse to restore the original shape of the beach, and planting reed after the topography is stabilized.
The monitoring result shows that the survival rate of the reed in the current year is 60%, the clearance rate of spartina alterniflora is 100%, and no recurrence occurs in the next year of growing season.
Example 2
Step one, dividing the cleaning area into a plurality of cleaning units with the area of about 2 hectares. Each unit is arranged in a straw stack yard and a landfill pit with the excavation area of 0.2 hectare in an area with the elevation of more than 2.4 m;
step two, before the flowering period, positioning or cleaning beach stone blocks and hard garbage, and then manually or mechanically cutting the aerial parts of the spartina alterniflora from low to high in low tide, wherein the stubble on the ground after cutting is not more than 5cm; simultaneously, the straws are recovered and concentrated to a stacking yard, and are used as biomass energy after airing and dehydration for 1-2 weeks or are crushed and then returned to the beach;
and thirdly, excavating a landfill pit with the depth of 4.0m, repairing the side wall into a 1:3 inclined slope, and stacking earthwork in layers according to 1.0 m. The soil layer with the thickness of not less than 30cm is pushed into a landfill pit and compacted by utilizing a wetland bulldozer to sequentially push the soil containing spartina alterniflora seeds, root systems and stubble from low to high, and then the soil is backfilled in a layered manner in situ and compacted, wherein the thickness of the soil is more than 1m.
Fourthly, after the surface soil is excavated, rotary tillage is carried out on the dense positions of the spartina alterniflora residual root systems by using a rotary cultivator so as to thoroughly break the spartina alterniflora stem roots, wherein the rotary tillage depth is about 40cm.
And fifthly, adopting deep earthwork or external planting soil without an intertexture Mi Caochong sub-warehouse to restore the original shape of the beach, and planting the scirpus aculeatus after the topography is stabilized.
The monitoring result shows that the survival rate of the scirpus maritima in the current year is about 50%, the clearance rate of the spartina alterniflora is 100%, and no recurrence occurs in the next year of growing season.
Example 3
Step one, dividing the cleaning area into a plurality of cleaning units with the area of about 1 hectare. Each unit is arranged in a straw stack yard and a landfill pit with the excavation area of 0.1 hectare in an area with the elevation of more than 3.0 m;
positioning or cleaning beach stone and hard garbage before a flowering period, and then mowing the aerial parts of the spartina alterniflora from low to high by a mower in low tide and along the topography, wherein the stubble on the ground after mowing is not more than 5cm; simultaneously, the straws are recovered and concentrated to a stacking yard, and are used as biomass energy after airing and dehydration for 1-2 weeks or are crushed and then returned to the beach;
and thirdly, excavating a landfill pit with the depth of 3.0m, repairing the side wall into a 1:3 inclined slope, and stacking earthwork in layers according to 1.0 m. The soil layer with the thickness of not less than 30cm is pushed into a landfill pit and compacted by utilizing a wetland bulldozer to sequentially push the soil containing spartina alterniflora seeds, root systems and stubble from low to high, and then the soil is backfilled in a layered manner in situ and compacted, wherein the thickness of the soil is more than 0.5 m. The landfill pit is covered with composite geotextile with light transmittance less than 10% for 2 months.
Fourthly, after the surface soil is excavated, rotary tillage is carried out on the dense positions of the spartina alterniflora residual root systems by using a rotary cultivator so as to thoroughly break the spartina alterniflora stem roots, wherein the rotary tillage depth is about 30 cm.
And fifthly, adopting deep earthwork or external planting soil without an intertexture Mi Caochong sub-warehouse to restore the original shape of the beach, and planting reed and scirpus aculeatus after the topography is stabilized and the composite geotextile is removed.
The monitoring results show that the survival rate of reed and scirpus is 64% and 60%, respectively, the clearance rate of spartina alterniflora is 100%, and no recurrence occurs in the next year of growing season.
The present invention is not described in detail, and those skilled in the art can select and use the present invention according to specific needs in the prior art, which is not described in detail.
The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present invention. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present invention.
Claims (11)
1. A method for removing spartina alterniflora and controlling recurrence is characterized in that straw stacking fields and landfill positions are firstly arranged in a spartina alterniflora cleaning area, then mowing, recycling and airing are carried out on overground parts of the spartina alterniflora before a flowering period, then the landfill is excavated according to the topography, surface soil containing seeds and residual stem roots is pushed into the pit, soil is covered and compacted, meanwhile, rotary tillage is further carried out on the stem root dense positions to break the stem roots, finally, the surface of a beach is recovered by utilizing excavated deep earthwork or external planting soil, and native vegetation planting is carried out after topography is stabilized.
2. The method of clearing spartina alterniflora and controlling recurrence of claim 1, comprising the steps of:
dividing a clearing area into a plurality of clearing units, arranging straw stacking fields and landfill pits with corresponding scales in areas of high tidal beaches and above of the units, and positioning or clearing beach stones and hard garbage;
step two, selecting artificial or mechanical low tide forward topography to mow the aerial parts of the spartina alterniflora from low to high before the flowering period; simultaneously, the straws are concentrated to a stacking field and are used as biomass energy after being dried and dehydrated or are crushed and then returned to the beach;
digging a landfill pit after cutting is completed, repairing the side wall into a certain inclined slope, and stacking earthwork between the landfill pit and a straw stacking field in layers; pushing the surface soil containing the spartina alterniflora seeds and stems and roots into a landfill pit from low to high by utilizing a wetland bulldozer, compacting, and then backfilling in situ in a layering manner and compacting the soil;
fourthly, after the surface soil is excavated, rotary tillage is carried out on the dense positions of the residual stems and roots of the spartina alterniflora by using a rotary cultivator so as to thoroughly break the stems and roots;
and fifthly, restoring the original state of the beach surface by adopting excavated deep earthwork or planting soil of an external spartina alterniflora seed warehouse, and selecting fast-growing native vegetation after the topography is stable.
3. The method of clearing spartina alterniflora and controlling recurrence of claim 2, wherein:
in the first step, the area of the cleaning unit is 1-2 hectares, each unit is distributed in an area with the height of more than 3.0m and the excavation area is 500-1000 m 2 Straw stack and 500-1000 m 2 And (5) filling the pit.
4. The method of clearing spartina alterniflora and controlling recurrence of claim 2, wherein:
in the second step, the stubble remained on the ground after mowing is not more than 5cm; the drying and dehydrating time is 1-2 weeks.
5. The method of clearing spartina alterniflora and controlling recurrence of claim 2, wherein: in the third step, the depth of the landfill pit is 2.0-5.0 m; the ratio of the inclined slopes is 1:2-1:4; the thickness of the surface soil pushed into the landfill and compacted is not less than 30cm, and the thickness of the covering soil is at least 1m.
6. The method of clearing spartina alterniflora and controlling recurrence of claim 2, wherein: and thirdly, paving and fixing opaque geotextile on the landfill pit after the step three is completed.
7. The method of clearing spartina alterniflora and controlling recurrence of claim 2, wherein: in the fourth step, the rotary tillage depth is 30-40 cm.
8. The method of clearing spartina alterniflora and controlling recurrence of claim 2, wherein: in the fifth step, the planting density of the stem and root dense positions is improved by 1-2 times.
9. The method of clearing spartina alterniflora and controlling recurrence of claim 2, wherein: in the fifth step, the fast-growing native vegetation comprises reed, scirpus maritima or Guanyu.
10. The method of clearing spartina alterniflora and controlling recurrence of claim 2, wherein: restoring the original state of the beach surface by adopting excavated deep earthwork or external planting soil without the spartina alterniflora seed library.
11. The method of clearing spartina alterniflora and controlling recurrence of claim 2, wherein: the landfill pits are distributed in the low tide area along the shoreline interval 5m to form a plurality of 4-6 m wide landfill belts, the land is lifted up after the original beach surface is restored by the covering soil, geotextiles are laid to form wave-eliminating ridges with the top width of 1-3 m and the slope ratio of 1:1.5-1:2, and the ridge top elevation does not exceed the average high tide level.
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| CN202311028453.0A CN116918512A (en) | 2023-08-15 | 2023-08-15 | Method for removing spartina alterniflora and controlling recurrence |
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| CN202311028453.0A CN116918512A (en) | 2023-08-15 | 2023-08-15 | Method for removing spartina alterniflora and controlling recurrence |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117666673A (en) * | 2023-12-06 | 2024-03-08 | 广东省水利水电第三工程局有限公司 | Dynamic control method, system and equipment for controlling depth of soil covering for spartina alterniflora |
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2023
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117666673A (en) * | 2023-12-06 | 2024-03-08 | 广东省水利水电第三工程局有限公司 | Dynamic control method, system and equipment for controlling depth of soil covering for spartina alterniflora |
| CN117666673B (en) * | 2023-12-06 | 2024-05-28 | 广东省水利水电第三工程局有限公司 | Dynamic control method, system and equipment for controlling depth of soil covering for spartina alterniflora |
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