CN114938753A - Method for preventing and treating harm of enteromorpha in mangrove forest - Google Patents
Method for preventing and treating harm of enteromorpha in mangrove forest Download PDFInfo
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- CN114938753A CN114938753A CN202210634020.9A CN202210634020A CN114938753A CN 114938753 A CN114938753 A CN 114938753A CN 202210634020 A CN202210634020 A CN 202210634020A CN 114938753 A CN114938753 A CN 114938753A
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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
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
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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
- A01G13/00—Protecting plants
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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
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Abstract
The invention discloses a method for preventing and controlling harm of enteromorpha in mangrove forest, belonging to the technical field of plant harm prevention of mangrove forest. Spraying acetic acid liquor with the concentration of 3.5% -10% on the mangrove beach land blocks covered or surrounded by the enteromorpha to kill the enteromorpha of the mangrove; the method can also be combined with a control means of natural enemies to put in the stone sulphur which eats the enteromorpha; and the method can also be combined with a means of planting enteromorpha competitive plant, wherein the enteromorpha competitive plant is hedge. The method adopts the acetic acid medicament spraying method, can effectively prevent and control the growth of the enteromorpha, is convenient to operate, takes effect quickly, has good prevention and control effect and has small influence on the environment; adding the stone sulphur to eat the enteromorpha, and restraining the growth speed of the enteromorpha; and by combining with the inserting of the hedgerow, the hedgerow and the enteromorpha compete for living space to inhibit the growth of the enteromorpha, and meanwhile, the additional economic value output of the coastal mud flat is improved.
Description
Technical Field
The invention belongs to the technical field of mangrove plant pest control, and particularly relates to a method for preventing and controlling harm of mangrove enteromorpha.
Background
Enteromorpha is a common alga in coastal areas, generally called Enteromorpha green alga, belonging to the phylum Chlorophyta, class Chlorophyceae, order Sp.33939and family on the classification. The enteromorpha is a worldwide wide-temperature variety, the distribution range of the enteromorpha extends from the vicinity of the equator to the polar region, the natural environment adaptability is strong, and the enteromorpha is distributed from a estuary with very low salinity to a salt pan with very high salinity.
Because the Ji Lai propagation speed is extremely high, the biomass can be increased rapidly in a short time, so that the inorganic nutrient salts in the water can be reduced rapidly and even completely exhausted, and further, the algae die in large quantity, rot and deteriorate, and the water quality is deteriorated abnormally.
Enteromorpha can cause serious harm to natural forests and artificial forests of mangroves. In the outbreak period of the enteromorpha, a large amount of enteromorpha covers the aerial roots and the soil of the mangrove, so that the normal gas exchange of the aerial roots and the soil of the mangrove is blocked, meanwhile, the water accumulation on the beach surface is easy to be blocked by the enteromorpha, benthonic animals in the soil die, and the anoxic condition of the root system of the mangrove is further worsened, and in the natural extinction period of the enteromorpha, the soil of the mangrove is seriously anoxic because the enteromorpha dies and decays greatly, and then the sliced natural mangrove dies; for low artificial mangrove plants, the enteromorpha can even cover the whole plant, resulting in a large number of plants lodging and casualties. Therefore, a safe and effective control method is needed for the harm of the enteromorpha, the enteromorpha can be effectively removed, and new harm to mangrove trees can be avoided.
Disclosure of Invention
In order to solve the technical problems, the invention provides a method for preventing and controlling the damage of enteromorpha prolifera to mangrove forest by various technical means such as spraying acetic acid liquid medicine, releasing natural enemies, inserting competitive plant gracilaria and the like.
In order to achieve the above object, the present invention provides the following technical solutions,
a method for preventing and treating harm of Enteromorpha prolifera in mangrove comprises spraying acetic acid liquid to the mudflat land of mangrove covered or surrounded by Enteromorpha prolifera to kill the Enteromorpha prolifera in mangrove; the concentration of the acetic acid liquid medicine is 2.5% -10%.
The specific operation is as follows: (1) generally, the acetic acid liquid medicine spraying time is selected to be carried out in clear weather without rainfall after the tide is removed, after the enteromorpha in the mangrove forest is exposed on the beach surface and no obvious accumulated water is left on the enteromorpha, the enteromorpha prevention and control operation is started, and if the accumulated water is left on the beach surface at the position of the enteromorpha, a ditch is dug to remove the accumulated water completely, and then the enteromorpha prevention and control operation is carried out.
(2) The acetic acid liquid medicine spraying method comprises the following steps: uniformly spraying to and fro in the direction perpendicular to the growth direction of enteromorpha, wherein acetic acid solution is sprayed for 3-4m per liter 2 The enteromorpha prolifera.
(3) Checking the spraying effect of the liquid medicine: after the spraying, the enteromorpha can be changed from the green survival state to the white death state within 3-4 hours, and after 2-3 days, the enteromorpha community can be seen to be washed and eliminated by seawater due to the collapse of the structure.
(4) The spraying frequency of the liquid medicine is as follows: in the period from the bottom of 9 months to the occurrence period of 5 months in the second year, the spraying can be carried out for 1 time per month for the mangrove mudflat with less enteromorpha, and the spraying can be carried out for 1-2 times per month for the mangrove mudflat with more enteromorpha.
Furthermore, the tidal flat of the mangrove forest with less enteromorpha means that the thickness of the enteromorpha is less than or equal to 1cm or the area of the enteromorpha is less than or equal to 50 percent of the tidal flat area of the mangrove forest; the tidal flat of the mangrove forest with more enteromorpha is that the thickness of the enteromorpha is more than 1cm or the area of the enteromorpha is more than 50 percent of the tidal flat area of the mangrove forest.
Furthermore, 2.5% acetic acid solution is used when the beach surface is covered with enteromorpha, and 10% acetic acid solution can be used when the beach surface is thick.
Furthermore, the method for preventing and treating the harm of the enteromorpha prolifera in mangroves also comprises a natural enemy prevention and treatment means, and the stone sulphur is put in the acetic acid liquid medicine after being sprayed for 7 days in a mode of taking the stone sulphur which eats the enteromorpha prolifera. The adding amount of the stone sulphur is 10-20/m 2 . The stone sulphur is usually collected once in about 3 months. The influence of acetic acid on the sodium sulforaphane is small because the sodium sulforaphane is low-concentration acetic acid, the sodium sulforaphane is put after the acetic acid liquid medicine is sprayed for 7 days, the residual acetic acid amount in the mangrove forest is very small along with the flushing of seawater, and almost no sodium sulforaphane is applied to the sodium sulforaphaneInfluence.
Furthermore, the prevention and treatment of the harm of the enteromorpha in the mangrove forest further comprises the step of inserting and planting an enteromorpha competitive plant, wherein the enteromorpha competitive plant is hedgehog.
Furthermore, the planting of the hedgerow is to plant or erect the hedgerow seedling algae on the beach surface for cultivation; the transplanting time of the hedgerow is 4-5 days after the liquid medicine is sprayed, and the hedgerow seedlings can emerge for transplanting after reaching 6-7cm in length.
The hedgerow sowing cultivation is to regularly spread hedgerow seedlings and growth bases on a beach surface according to specifications to form vegetable ridge type arrangement, wherein the distance between ridges is 2.0m, and the distance between growth bases is 40 cm. The hedgerow cuttage cultivation is that hedgerow seedlings are clamped in seedling clamping grooves which are pre-opened by bamboo sticks, then the bamboo sticks are cut on a beach and coated, the cutting line spacing is 50-60cm, and the plant spacing is 30-35 cm; the sowing or the transplanting is carried out after the tide is faded and the tidal flat surface is leaked.
Furthermore, the hedgerow variety is any one or a mixture of fine-base hedgerow breeding varieties, chrysanthemum hedgerow and real hedgerow.
The Gracilaria verrucosa is usually red, dark purple green or dark brown red, and the base part of the Gracilaria verrucosa is a disc-shaped fixer and is adsorbed on a growth substrate for growth. The hedgerow has strong growth capacity, the optimum growth time of the hedgerow is 10 months to 2 months of the next year, the hedgerow is planted, the algae grows rapidly, and the algae can be the optimum competitor of the enteromorpha. The gracilaria can be harvested after 3-5 months of growth, thereby obtaining economic value. The growth of the enteromorpha is restrained, and meanwhile, economic algae cultivation can be carried out.
The hedgerow and the enteromorpha have a competitive relationship in living space and resource utilization, and compared with the hedgerow, the hedgerow is hydrophobic, and the enteromorpha is hydrophilic, so that the hedgerow has a competitive advantage under the condition that the hedgerow and the enteromorpha coexist. And the hedgerow is not easy to cause water accumulation on the beach surface, can grow all the year round, is not easy to rot so as to cause adverse effects on the beach environment, so the growth form of the hedgerow has less negative effects on the coverage of aerial roots. The enteromorpha belongs to a full mudflat coverage type, has large water absorption capacity, and is particularly easy to cause local water accumulation on the mudflat to cause root rot of mangrove seedlings, thereby causing afforestation failure.
Compared with the prior art, the invention has the following beneficial effects:
1. the method adopts the acetic acid medicament spraying method, can effectively prevent and control the growth of the enteromorpha, has convenient operation, quick response and good prevention and control effect, can see the effect in a short period, has small influence on the environment and does not influence the growth of mangrove forest.
2. The invention also combines the control means of the natural enemies of the enteromorpha, the enteromorpha is taken as food for the release of the stone sulphur, the enteromorpha remained after the acetic acid treatment is controlled, and the stone sulphur is released after the acetic acid is fully diluted after the acetic acid medicament is sprayed for 7 days, thus the stone sulphur is not influenced.
3. The method is combined with a control means of enteromorpha competitive plants, and the hedgerow and the enteromorpha compete for living space to inhibit the growth of the enteromorpha through a technical means of inserting hedgerow, and meanwhile, the additional economic value output of the coastal mudflat is improved.
Drawings
FIG. 1 is a graph of the death of a portion of mangrove forest due to coverage with Enteromorpha.
FIG. 2 is a diagram of the situation that the coverage of Enteromorpha prolifera leads to the death of mangrove seedlings and leads to the failure of afforestation.
FIG. 3 is a diagram of the situation that enteromorpha coverage causes mass death of benthic shellfish.
FIG. 4 is a diagram of the black-smelling anoxic sludge formed after decay of Enteromorpha.
FIG. 5 is a diagram showing the effect of spraying acetic acid solution on young mangrove forest.
FIG. 6 is the effect chart of mature mangrove forest sprayed with acetic acid solution.
FIG. 7 is a graph showing the effect of feeding Enteromorpha prolifera with Taurolithin provided in the present invention.
FIG. 8 shows the effect of the gracilaria of the present invention in competing with Enteromorpha.
FIG. 9 is a diagram showing the effect of the competitive growth of Gracilaria and Enteromorpha in the mangrove seedling planting field.
Detailed Description
The present invention is further described below in conjunction with the following examples to make the advantages and features of the present invention more readily understandable.
Example 1
A method for preventing and treating harm of mangrove enteromorpha prolifera comprises the following aspects:
(1) time selection: and selecting the weather without rainfall after the tide is removed, and starting the enteromorpha prevention and control operation after the mangrove enteromorpha is exposed on the beach surface and no obvious water is accumulated on the enteromorpha.
(2) Preparation of the medicament: preparing 3.5% -10% acetic acid solution for standby, using 3.5% acetic acid solution when the beach surface covers less enteromorpha, and using 10% acetic acid solution when the beach surface covers thicker enteromorpha.
Judging that the thickness of the enteromorpha is less than or equal to 1cm, the coverage area of the enteromorpha is less than or equal to 50 percent, the mudflat area of the mangrove belongs to the mudflat of the mangrove with less enteromorpha, the thickness of the enteromorpha is more than 1cm, and the coverage area of the enteromorpha is more than 50 percent, and belongs to the mudflat of the mangrove with more enteromorpha.
(3) The device is arranged: the all-plastic pressure watering can or the electric watering can is selected, and the water outlet of the watering can is set to be the standard of spraying water columns.
(4) The spraying method comprises the following steps: uniformly spraying the solution back and forth in a direction perpendicular to the growth direction of the enteromorpha, wherein 3-4 square meters of the enteromorpha can be sprayed per liter of the acetic acid solution.
(5) And (4) effect checking: after the spraying, the enteromorpha can be changed from the green survival state to the white death state within 2 hours, and after 2 to 3 days, the enteromorpha community can be washed by seawater and eliminated.
(6) The spraying frequency is as follows: in the period from the bottom of 9 months to the occurrence period of enteromorpha in 5 months in the second year, the spraying can be carried out for 1 time per month for the mangrove mudflat with less enteromorpha, and the spraying can be carried out for one time per half month for the mangrove mudflat with more enteromorpha.
The method is applied to the tidal flat of the young mangrove forest covered by enteromorpha to obtain the effect picture of the young mangrove forest sprayed with the acetic acid liquid shown in figure 5. The effect picture of the mature mangrove forest sprayed with the acetic acid liquid shown in figure 6 is obtained after the application of the method to the intertidal zone of the mature mangrove forest covered by the enteromorpha prolifera with more. As can be seen from FIGS. 5 and 6, after the method of the present invention is adopted, the enteromorpha is changed from the green of survival to the white of death, which shows that the effect is obvious.
Example 2
A method for preventing and treating harm of mangrove enteromorpha prolifera comprises the following aspects:
(1) time selection: and selecting the non-rainfall weather after the tide is removed, and starting the enteromorpha prevention and control operation after the enteromorpha in the mangrove forest is exposed on the beach surface and no obvious water is accumulated on the enteromorpha.
(2) Preparing a medicament: for the mangrove forest mudflat with less enteromorpha and the thickness of the enteromorpha is less than or equal to 1cm, the coverage area of the enteromorpha is less than or equal to 50 percent of the mudflat area of the mangrove forest, 3.5 percent of acetic acid solution is prepared for standby,
(3) the device is arranged: an electric watering can is selected, and the water outlet of the watering can is set to be capable of spraying water columns.
(4) The spraying method comprises the following steps: uniformly spraying the solution back and forth in a direction perpendicular to the growth direction of the enteromorpha, wherein 3 square meters of the enteromorpha can be sprayed per liter of the acetic acid solution.
(5) And (4) effect checking: after spraying, the enteromorpha can be changed from the green of survival to the white of death within 2 hours, and a large amount of enteromorpha community can be washed by seawater and consumed after 2 to 3 days due to the collapse of the structure.
(6) The spraying frequency is as follows: in the period from the bottom of 9 months to the 5 months of the second year, the spraying can be carried out 1 time per month according to the situation on mangrove mudflats with less enteromorpha, and the spraying is targeted; after the first spraying, the spraying is carried out on the part with more enteromorpha in the next month, the amount of the enteromorpha is less, and sporadic mangrove forest mudflat can be temporarily not sprayed.
(7) And (3) natural enemy throwing: after the acetic acid liquor is sprayed for 7 days for the first time, adding the stone sulphur which is eaten by the enteromorpha in a place with little residual quantity of the enteromorpha, wherein the adding quantity of the stone sulphur is 10-20/m 2 。
The method is applied to the mudflat of the mangrove seedling with less coverage of the enteromorpha, and the effect graph of feeding the enteromorpha by adding the stone sulfone in the chart of fig. 7 is obtained.
Example 3
A method for preventing and treating harm of mangrove enteromorpha prolifera comprises the following aspects:
(1) time selection: and selecting the non-rainfall weather after the tide is removed, and starting the enteromorpha prevention and control operation after the enteromorpha in the mangrove forest is exposed on the beach surface and no obvious water is accumulated on the enteromorpha.
(2) Preparing a medicament: preparing 3.5-10% acetic acid solution for later use, using 3.5% acetic acid solution when the beach surface covers less enteromorpha, and using 10% acetic acid solution when the beach surface covers thicker enteromorpha.
Judging that the thickness of the enteromorpha is less than or equal to 1cm, the coverage area of the enteromorpha is less than or equal to 50 percent, the mudflat area of the mangrove belongs to the mudflat of the mangrove with less enteromorpha, the thickness of the enteromorpha is more than 1cm, and the coverage area of the enteromorpha is more than 50 percent, and belongs to the mudflat of the mangrove with more enteromorpha.
(3) The device is arranged: the plastic pressure watering can or the electric watering can is selected, and the water outlet of the watering can is set to be capable of spraying water columns.
(4) The spraying method comprises the following steps: uniformly spraying the solution back and forth in a direction perpendicular to the growth direction of the enteromorpha, wherein 3-4 square meters of the enteromorpha can be sprayed per liter of the acetic acid solution.
(5) And (4) effect checking: after the spraying, the enteromorpha can be changed from the green survival state to the white death state within 2 hours, and after 2 to 3 days, the enteromorpha community can be washed by seawater and eliminated.
(6) The spraying frequency is as follows: in the period from the bottom of 9 months to the occurrence period of enteromorpha in 5 months in the second year, the spraying can be carried out for 1 time per month for the mangrove mudflat with less enteromorpha, and the spraying can be carried out for one time per half month for the mangrove mudflat with more enteromorpha.
(7) Inserting hedgerow: spraying the medicinal liquid for 4-5 days, and planting herba Drynariae seedlings with length of 6-7cm by sowing herba Drynariae seedlings on tidal flat surface; the hedgerow seedlings and the growth bases are regularly spread on the beach surface according to the specification to form vegetable ridge type arrangement, the distance between ridges is 2.0m, and the distance between the growth bases is 40 cm. The sowing time is selected after the tide is faded and the beach surface is leaked. Adopts the mixed broadcast sowing of the fine-base hedgerow propagated branch variety, the chrysanthemum hedgerow and the real hedgerow.
The method of the embodiment is applied to the intertidal zone of mature mangrove forest covered by enteromorpha, and figure 8 is a graph of the effect of the gracilaria of the invention competing with the enteromorpha for growth. Applied to the mangrove seedling planting land covered by the enteromorpha, and figure 9 is a graph showing the effect of the competition growth of the gracilaria and the enteromorpha in the mangrove seedling planting land. As can be seen from fig. 8 and 9, after the method of the present invention is adopted, the original growing place of enteromorpha is occupied by hedges, and the area of enteromorpha is reduced.
Example 4
A method for preventing and treating harm of mangrove enteromorpha prolifera comprises the following aspects:
(1) time selection: and selecting the non-rainfall weather after the tide is removed, and starting the enteromorpha prevention and control operation after the enteromorpha in the mangrove forest is exposed on the beach surface and no obvious water is accumulated on the enteromorpha.
(2) Preparing a medicament: preparing 3.5-10% acetic acid solution for later use, using 3.5% acetic acid solution when the beach surface covers less enteromorpha, and using 10% acetic acid solution when the beach surface covers thicker enteromorpha.
Judging that the thickness of the enteromorpha is less than or equal to 1cm, the mudflat area of the mangrove with the coverage area of the enteromorpha less than or equal to 50 percent belongs to the mudflat of the mangrove with less enteromorpha, the thickness of the enteromorpha is more than 1cm, and the mudflat area of the mangrove with the coverage area of the enteromorpha more than 50 percent belongs to the mudflat of the mangrove with more enteromorpha.
(3) The device is arranged: the plastic pressure watering can or the electric watering can is selected, and the water outlet of the watering can is set to be capable of spraying water columns.
(4) The spraying method comprises the following steps: uniformly spraying the solution back and forth in a direction perpendicular to the growth direction of the enteromorpha, wherein 3-4 square meters of the enteromorpha can be sprayed per liter of the acetic acid solution.
(5) And (4) effect checking: after the spraying, the enteromorpha can be changed from the green survival state to the white death state within 2 hours, and after 2 to 3 days, the enteromorpha community can be washed by seawater and eliminated.
(6) The spraying frequency is as follows: in the period from the bottom of 9 months to the occurrence period of enteromorpha in 5 months in the second year, the spraying can be carried out for 1 time per month for the mangrove mudflat with less enteromorpha, and the spraying can be carried out for one time per half month for the mangrove mudflat with more enteromorpha.
(6) The spraying frequency is as follows: in the period from the bottom of 9 months to the occurrence period of 5 months in the second year, the spraying can be carried out 1 time per month according to the situation on the mangrove forest intertidal zone with less enteromorpha, and the spraying is targeted; after the first spraying, the enteromorpha is sprayed in the place covered by much enteromorpha in the next month, the amount of the enteromorpha is small, and sporadic mangrove mudflat can be temporarily not sprayed.
(7) Inserting hedgerow: spraying acetic acid solution for 4-5 days, and planting herba Drynariae seedling with length of 6-7cm by inserting herba Drynariae seedling algae on tidal flat surface; clamping the hedgerow seedlings in seedling clamping ditches which are pre-opened by bamboo sticks, and then cutting the bamboo sticks on a beach for coating, wherein the row spacing of the cutting is 50-60cm, and the plant spacing is 30-35 cm; the insertion time is selected after the ebb tide leaks out of the beach surface. Adopts the mixed breeding of the fine-base hedgerow propagated varieties, the chrysanthemum hedgerow and the real hedgerow, or selects one of the varieties.
(8) And (3) natural enemy throwing: after the acetic acid liquor is sprayed for 7 days for the first time, adding the stone sulphur which is eaten by the enteromorpha in a place with little residual quantity of the enteromorpha, wherein the adding quantity of the stone sulphur is 10-20/m 2 。
The methods of examples 1-4 were used to control mangrove forest enteromorpha, the resulting control is shown in table 1.
TABLE 1 mangrove enteromorpha prevention and control
As can be seen from the above table, after the liquid medicine is sprayed for one week, the coverage rates of the enteromorpha prolifera in examples 1-4 are not very different, which indicates that the acetic acid liquid medicine is sprayed in a short time to exert a good technical effect; however, after 1 month, the different control measures showed differences. The prevention and control effect of the combined prevention and control means of combining liquid medicine spraying with natural enemy prevention and control and planting competitive plants is stable. The control effect of example 4 was optimal. The recurrence rate of single treatment of example 1 was relatively high after 2 and 3 times of examples.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made thereto by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should be considered as falling within the scope of the present invention.
Claims (10)
1. A method for preventing and treating harm of the enteromorpha of the mangrove is characterized in that acetic acid liquid is sprayed on the mudflat land blocks of the mangrove covered or surrounded by the enteromorpha to kill the enteromorpha of the mangrove; the concentration of the acetic acid liquid medicine is 3.5% -10%.
2. The method for preventing and treating harm of the enteromorpha in the mangrove forest according to claim 1, wherein the spraying time of the acetic acid liquid medicine is selected in the weather of no rainfall after the tide is removed, and after the enteromorpha in the mangrove forest is exposed out of the beach surface and no obvious water is accumulated on the enteromorpha, the enteromorpha prevention operation is started; the acetic acid liquid medicine spraying method comprises the following steps: uniformly spraying to and fro in the direction perpendicular to the growth direction of enteromorpha, wherein acetic acid solution is sprayed for 3-4m per liter 2 The enteromorpha prolifera.
3. The method for preventing and treating harm of mangrove enteromorpha according to claim 1, wherein the spraying frequency of the liquid medicine is as follows: in the period from the bottom of 9 months to the occurrence period of 5 months in the second year, the spraying can be carried out for 1 time per month for the mangrove mudflat with less enteromorpha, and the spraying can be carried out for 1-2 times per month for the mangrove mudflat with more enteromorpha.
4. The method for preventing and treating the harm of the enteromorpha in the mangrove forest according to claim 3, wherein the tidal flat of the mangrove forest with less enteromorpha means that the thickness of the enteromorpha is less than or equal to 1cm or the coverage area of the enteromorpha is less than or equal to 50% of the tidal flat area of the mangrove forest; the tidal flat of the mangrove forest with more enteromorpha is that the thickness of the enteromorpha is more than 1cm or the coverage area of the enteromorpha is more than 50 percent of the tidal flat area of the mangrove forest.
5. The method for preventing and treating harm of the Enteromorpha prolifera in the mangrove forest according to any one of claims 1 to 4, which is characterized in that prevention and treatment means of natural enemies are further included, and the method comprises the step of feeding the Enteromorpha prolifera to the measure that the measure is taken after acetic acid liquor is sprayed for 7 days.
6. The method for preventing and treating harm of mangrove enteromorpha as claimed in claim 5, wherein the adding amount of the stone sulphur is 10-20/m 2 。
7. The method for controlling harm of enteromorpha in mangrove forest according to any one of claims 1 to 4, wherein the control of harm of enteromorpha in mangrove forest further comprises inserting an enteromorpha competitive plant, wherein the enteromorpha competitive plant is hedgerow.
8. The method for preventing and treating harm of the enteromorpha prolifera in the mangroves according to claim 7, wherein the planting of the hedgerow is to sow or insert the alga bodies of the hedgerow seedlings on the beach surface for cultivation; the transplanting time of the hedgerow is 4-5 days after the liquid medicine is sprayed, and the hedgerow seedlings can emerge for transplanting after reaching 6-7cm in length.
9. The method for preventing and treating harm of mangrove enteromorpha according to claim 7, wherein the hedgerow sowing cultivation is to regularly spread hedgerow seedlings and growth substrates on the beach surface according to specifications to form a vegetable bed type arrangement, the interval between beds is 2.0m, and the interval between growth substrates is 40 cm; the hedgerow cuttage cultivation is that hedgerow seedlings are clamped in seedling clamping ditches which are pre-opened by bamboo sticks, then the bamboo sticks are cut on a beach, the cutting line spacing is 50-60cm, and the plant spacing is 30-35 cm; the sowing or the transplanting is carried out after the tide is faded and the tidal flat surface is leaked.
10. The method for preventing and treating harm of the enteromorpha prolifera in the mangrove forest according to claim 7, wherein the hedgerow variety is any one or a mixture of fine-base hedgerow propagated varieties, chrysanthemum hedgerow and real hedgerow.
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| CN202210634020.9A CN114938753B (en) | 2022-06-07 | 2022-06-07 | Method for preventing and controlling enteromorpha harm in mangrove |
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| CN114938753B CN114938753B (en) | 2023-06-30 |
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