CN115462210B - Method for ecologically restoring suaeda salsa in coastal beach saline land - Google Patents

Method for ecologically restoring suaeda salsa in coastal beach saline land Download PDF

Info

Publication number
CN115462210B
CN115462210B CN202211162171.5A CN202211162171A CN115462210B CN 115462210 B CN115462210 B CN 115462210B CN 202211162171 A CN202211162171 A CN 202211162171A CN 115462210 B CN115462210 B CN 115462210B
Authority
CN
China
Prior art keywords
water
ridge
suaeda salsa
planting
furrows
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202211162171.5A
Other languages
Chinese (zh)
Other versions
CN115462210A (en
Inventor
汪强
贾楠
董晓煜
刘艳
周大全
于宇
李思涵
李梦琦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Agricultural University
Original Assignee
Qingdao Agricultural University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Agricultural University filed Critical Qingdao Agricultural University
Priority to CN202211162171.5A priority Critical patent/CN115462210B/en
Publication of CN115462210A publication Critical patent/CN115462210A/en
Application granted granted Critical
Publication of CN115462210B publication Critical patent/CN115462210B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • 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
    • A01G25/00—Watering gardens, fields, sports grounds or the like
    • A01G25/02—Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
    • 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
    • A01G27/00—Self-acting watering devices, e.g. for flower-pots
    • 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
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
    • A01G9/029—Receptacles for seedlings
    • A01G9/0293—Seed or shoot receptacles
    • 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
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
    • A01G9/029—Receptacles for seedlings
    • A01G9/0295—Units comprising two or more connected receptacles

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Soil Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Botany (AREA)
  • Cultivation Of Plants (AREA)

Abstract

The invention provides a method for ecologically restoring suaeda salsa in coastal beach saline lands, belonging to the technical field of ecological restoration; the method comprises the following steps: digging a plurality of water storage furrows perpendicular to a shoreline on a coastal beach, wherein a field ridge higher than the beach is arranged between two adjacent water storage furrows; sowing a saline land suaeda salsa on the ridges; the spray assembly is also arranged; the spraying area of the spraying assembly is a part or all of the surface of the ridge. The invention can increase the retention rate of the suaeda salsa seeds in the soil by carrying out micro-terrain transformation on the coastal tidal flat, resist the influence of external factors such as rapid water flow flushing and the like caused by tidal water of the coastal tidal flat on the seed retention and germination, eliminate adverse factors such as tidal water flushing, drought, flooding stress and the like of seedlings in the growth process, provide a proper growth environment for the suaeda salsa plants, and eliminate population number reduction caused by adverse conditions.

Description

Method for ecologically restoring suaeda salsa in coastal beach saline land
Technical Field
The invention belongs to the technical field of ecological restoration, and particularly relates to a method for ecologically restoring suaeda salsa in coastal beach saline lands.
Background
The suaeda salsa is a saline-alkali indicating plant with a very high sign, is annual herbaceous plants, has salt preference and higher salt tolerance, can absorb a large amount of salt existing in soil, and has alkali resistance, drought resistance, waterlogging resistance and the like. Suaeda salsa grows widely around coastal beach and saline-alkali soil, and has obvious effects of improving soil salinization, heavy metal absorption and petroleum enrichment. The seedlings of suaeda salsa not only can be used as edible dishes, but also can be used as edible feed for poultry, and have certain economic value.
Due to the industrial development in recent years, the environment such as coastal beach, wetland and the like is greatly damaged, so that the suaeda salsa community is gradually contracted. The prior art method for repairing the suaeda salsa generally comprises the steps of directly sowing the suaeda salsa seeds on coastal beach, but is influenced by the environmental factors such as sea water, tide and the like, and the suaeda salsa seeds have low retention rate and low germination rate.
Disclosure of Invention
The invention aims to provide a method for ecologically restoring suaeda salsa on coastal beach, which can improve the seed retention rate and germination rate of suaeda salsa.
The invention provides a method for ecologically restoring suaeda salsa on coastal beach, which comprises the following steps:
digging a plurality of water storage furrows perpendicular to a shoreline on a coastal beach, wherein a field ridge higher than the beach is arranged between two adjacent water storage furrows;
sowing a saline land suaeda salsa on the ridges;
the spray assembly is also arranged; the spraying area of the spraying assembly is a part or all of the surface of the ridge.
Preferably, the number of the ridges between two adjacent water storage furrows is more than or equal to 2; middle furrows are also arranged between 2 adjacent ridges.
Preferably, a platform is arranged on the slope surface of the ridge close to the water storage furrow.
Preferably, the gradient of the ridge slope of the field ridge is 60-66 degrees.
Preferably, the spray assembly comprises a first spray assembly and/or a second spray assembly;
the first spraying assembly is communicated with the first water supply pipe; the first water supply pipe is arranged in a soil layer below the water storage furrow;
the second spraying assembly is communicated with a second water supply pipe; the second water supply pipe is arranged in the soil layer below the ridge.
Preferably, a slurry layer is paved on the surface of the ridge.
Preferably, a plurality of planting frames are paved on the slurry layer; the depth of the planting frame inserted into the ground is 5-8 cm.
Preferably, the planting frame is square with one side open; attaching adjacent planting frames; and drain holes are formed in the side frame of the planting frame.
Preferably, a water barrier which does not completely separate the planting frame is arranged inside the planting frame.
Preferably, the number of the water-proof columns in each planting frame is 2, and the 2 water-proof columns are respectively fixed on the frames of the opposite planting frames.
The invention provides a method for ecologically restoring suaeda salsa on coastal beach, which comprises the following steps:
digging a plurality of water storage furrows perpendicular to a shoreline on a coastal beach, wherein a field ridge higher than the beach is arranged between two adjacent water storage furrows; a spraying component is arranged above the ridge; the spraying area of the spraying assembly is a part or all of the surface of the ridge; and sowing a saline land suaeda salsa on the ridges. The invention can increase the retention rate of the suaeda salsa seeds in the soil by carrying out micro-terrain transformation on the coastal tidal flat, resist the influence of external factors such as rapid water flow flushing and the like caused by tidal water of the coastal tidal flat on the seed retention and germination, eliminate adverse factors such as tidal water flushing, drought, flooding stress and the like of seedlings in the growth process, provide a proper growth environment for the suaeda salsa plants, and eliminate population number reduction caused by adverse conditions. In addition, the suaeda salsa has the type II seeds, and the two types of seeds have obvious differences in morphology and physiology. The invention can effectively improve salt accumulation, reduce the salinization degree of soil and promote the growth and population reproduction of the suaeda salsa community while reducing the damage to the coastal environment. After the suaeda salsa is successfully planted, not only can the surrounding habitat be optimized, the ecological balance of the beach be restored and stabilized, but also the population reproduction of the suaeda salsa can be promoted, and the effect of continuously purifying the environment can be achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a cross-sectional view of a terrain modification, wherein 1 is a spray assembly, 2 is a planting frame, 3 is a slurry layer, 4 is a secondary buffer layer, 5 is a primary buffer layer, 6 is a water storage furrow, and 7 is a water supply pipe;
FIG. 2 is a top view of a terrain modification, wherein 1 is a spray assembly, 2 is a planting frame, 3 is a mud layer, 6 is a water storage furrow, and 7 is a water supply pipe;
FIG. 3 is a top view of a planting frame, wherein 8 is a water blocking fence and 9 is a drain hole;
FIG. 4 is a front view of a planting frame, wherein 9 is a drain hole;
FIG. 5 is a side view of a planting frame, wherein 8 is a water blocking fence and 9 is a drain hole;
fig. 6 is a view of a planting frame model, wherein 8 is a water blocking fence, and 9 is a drain hole.
Detailed Description
The invention provides a method for ecologically restoring suaeda salsa on coastal beach, which comprises the following steps:
digging a plurality of water storage furrows perpendicular to a shoreline on a coastal beach, wherein a field ridge higher than the beach is arranged between two adjacent water storage furrows; sowing a saline land suaeda salsa on the ridges; the spray assembly is also arranged; the spraying area of the spraying assembly is a part or all of the surface of the ridge.
The method is formulated according to the biological characteristics of the suaeda salsa, and the suaeda salsa seeds have the type II, namely, the suaeda salsa seeds are divided into brown seeds and black seeds, the brown seeds can germinate rapidly after falling to the ground, the black seeds have a dormancy period, and the sowing germination rate is low. Natural factors such as tidal action, long-time flooding, drought, high temperature and the like can bring serious influence to the germination of the suaeda salsa seeds, and the invention can improve the growth condition of the seeds and seedlings under adverse conditions and provide excellent development places by carrying out micro-topography modification on the growth environment of the suaeda salsa.
In the invention, the depth of the water storage furrow below the mud flat is preferably 45-55 cm, more preferably 50cm; the width of the water storage furrow is preferably 1.5-2.5 m, more preferably 2m; the water storage furrows play a role in water storage and provide moisture preservation and water supply for the ridges on the two sides.
In the invention, the spray heads of the spray assemblies are higher than the ridges; the spray assembly preferably includes a first spray assembly and/or a second spray assembly.
In the invention, the first spray assembly is communicated with a first water supply pipe; the first water supply pipe is arranged in the soil layer below the water storage furrow, so that loss is reduced, and damage of tidal flushing to the water supply device is reduced; the radius of the first water supply pipe is preferably 12-16 cm, more preferably 14cm; the wall thickness of the first water supply pipe is preferably 12-16 mm, more preferably 14mm; the material of the first water supply pipe is preferably PE; the spacing between adjacent spray heads of the first spray assembly is preferably 3.5-4.5 m, more preferably 4m; the spraying height of the first spraying component is preferably 0.8-1.5 m higher than the furrow, and more preferably 1m. In the invention, the second spraying component is communicated with a second water supply pipe; the spraying area of the second spraying assembly preferably covers the whole area of the surface of the ridge; the radius of the second water supply pipe is preferably 12-16 cm, more preferably 14cm; the wall thickness of the second water supply pipe is preferably 12-16 mm, more preferably 14mm; the material of the second water supply pipe is preferably PE; the spacing between adjacent spray heads of the second spray assembly is preferably 2.5-3.5 m, more preferably 3m; the spraying height of the second spraying assembly is preferably 40-80 cm higher than the surface of the ridge, and more preferably 50cm; the second water supply pipe is preferably provided at the lower part of the ridge, more preferably at 40 to 60cm, and even more preferably at 50cm, below the ridge. In the invention, the first spraying component and the second spraying component are sprayed to a certain height, so that the situation that the spraying ports are easily blocked by sediment after the low-level spraying component is used for soaking in seawater is avoided.
In the invention, the first water supply pipe and the second water supply pipe are mutually communicated and commonly communicated with the same main water supply pipe, and the first water supply pipe and the second water supply pipe are preferably arranged in a row independently; the water source of the main water supply pipe is preferably one or more of water in a tidal ditch on a beach, water in a ditch around a coast and tap water; the position where the main water supply pipe is connected with each water pipe is preferably provided with an independent valve which is manually opened and closed; one side interface of the main water supply pipe is connected with a water pump for pumping water to irrigate.
In the present invention, during the sowing of the suaeda salsa in the saline land, irrigation is preferably performed with water of low salinity; the low salinity water is preferably water and/or tap water in a trench around the coast.
In the invention, fresh water is preferably used for irrigation in the germination period and the rapid growth period of the suaeda salsa; the germination period is 2 months to 3 months of solar calendar; the rapid growth period is 5 months to 6 months of solar calendar.
In the present invention, the irrigation time is preferably a low tide time period of daily, and the spraying time period of each irrigation is preferably 1.5-2.5 hours, more preferably 2 hours. During periods of high temperature and/or drought, the spray period for each irrigation is preferably 12 pm to 4 pm per day; the spraying amount is used for keeping the soil of the ridge moist and storing water in the water storage furrows.
In the invention, the water storage ditches play a role in draining and storing water when the water is drained into the ditches on the ridge slope in the large tide period; in high temperature season, the both sides retaining lets middle part ridge moisturizing, and little tidal range planting area is not all regional can all evenly go up water, and furrow water storage quantity is rare, and spray set can incessantly spray, has partial water to remain in the furrow after a long time, guarantees both sides soil wettability, and the accessible manual spraying's mode is direct to get water irrigation in planting the region.
In the present invention, the surface width of each ridge is preferably 2.5 to 5m, more preferably 3 to 4m; the height of the ridge above the beach is preferably 25-35 cm, more preferably 30cm.
In the invention, the number of the ridges between two adjacent water storage furrows is preferably more than or equal to 2; the middle furrows are preferably arranged between the adjacent 2 ridges, so that the effect of storing water and wetting soil is achieved during flood tide and ebb tide, and the first spraying assembly and/or the second spraying assembly are matched to continuously pass through the moisturizing effect for the soil, so that seeds flushed by the flood tide can enter the region to continuously grow; the depth of the middle furrows lower than the ridges is preferably 15-25 cm, more preferably 20cm; the width of the middle furrow is preferably 0.8-1.2 m, more preferably 1m, and is convenient for people to pass through normally and maintain.
The invention utilizes a double-ridge structure, the edges are terminated by furrows, the elevation of a planting area is increased, the impact force of tides can be reduced, the flushing force of tides on early planting is greatly relieved, the flooding stress of tides on seeds is reduced, and the impact force on seedling growth is weakened; under the condition of increasing elevation, the soil moisture retention, the water content, the soil hardness reduction and the like are all obviously effective, the rapid rooting of seeds is ensured, the fragile period of growth is ensured, and the environmental stability is ensured.
In the invention, a platform is preferably arranged on the slope surface of the ridge close to the water storage furrow, a first-stage buffer layer of the ridge is arranged below the platform, and a second-stage buffer layer of the ridge is arranged below the platform; the width of the platform is preferably 15-25 cm, more preferably 20cm; the height difference between the platform and the ridge surface is preferably 15-25 cm, more preferably 20cm; the platform is preferably level with the middle furrows. In the invention, the gradient of the ridge slope of the ridge is preferably 60-66 degrees, more preferably 63 degrees; the slope is too big, and the seed is difficult for remaining in the platform layer, and the proper slope is favorable to leading tidal water, slows down the morning and evening tides impact force. The introduced tide mainly washes the bottom of the bottom platform and has a buffer area with the width of 20cm, the root system of the suaeda salsa grows to loosen the soil, the porosity in the soil is increased, and if the buffer platform is not provided, the upper half part of the ridge is easily eroded in the flushing process of the tide, the soil on the ridge is flushed, and the area of the ridge is reduced; the slope is too little, and the ridge is washed by the morning and evening tides easily, and under the tidal action, sediment in the ditch is difficult to be accumulated, and under long-time use and the state of no clearance, the furrow can gradually lead to the ditch to be filled up because of sediment accumulation, and this field ridge still is higher than the beach at this moment, can guarantee that the salt land suaeda can not receive the water logging to compel and soak in the sea water for a long time.
In the invention, the soil on the ridges is preferably subjected to artificial soil breaking treatment so as to ensure the top soil porosity. In the invention, the surface of the ridge is preferably paved with a slurry layer, and the thickness of the slurry layer is preferably 2.5-5 cm, more preferably 3cm; in the invention, the slurry layer can ensure the soil humidity in the sowing area, and can be attached to the surface at the first time when seeds are sown, so that the loss proportion of the seeds in the attaching process is reduced.
In the planting process of the suaeda salsa in the saline land, the invention maintains the wettability of the slurry layer and supplements water regularly, and the surface of the suaeda salsa has partial accumulated water, but the accumulated water depth is not more than 2 cm.
In the invention, a plurality of planting frames are preferably paved on the slurry layer to protect seeds from tidal flushing and the adhesion of seedlings in the later period for growth; the depth of the planting frame inserted into the ground is preferably 5-8 cm. In the invention, the shape of the planting frame is preferably square with one side open, adjacent planting frames are attached, and the next planting frame seals the opening of the previous planting frame; the length of the planting frames is preferably 3-5 m, the width is preferably 2.5-5 m, the height is preferably 15-25 cm, more preferably 20cm, and adjacent planting frames are attached and aligned pairwise; the preferable material of the planting frame is pp.
In the invention, the inside of the planting frame is preferably provided with a water barrier which does not completely separate the planting frame. In the invention, the number of the water-proof columns in each planting frame is preferably 2, the planting frames are divided into three parts by the 2 water-proof columns, one ends of the 2 water-proof columns are respectively fixed on the opposite planting frame rims, the unfixed ends of the 2 water-proof columns are bent and extended towards the opposite rims, and the bending direction of the water-proof columns is opposite to the tidal flushing direction; the angle of the bending of the water barrier is preferably 25-35 degrees, more preferably 30 degrees; the distance between the unfixed end of the water barrier and the opposite side frame is preferably 29.5-34.5 cm; the frame of the planting frame is preferably provided with a drain hole; the number of the drain holes on the side frame parallel to the water storage furrows of the planting frame is preferably 3-4, and the drain holes are uniformly distributed; the number of the drain holes on the vertical frames of the planting frames and the water storage furrows is preferably 2-3; the water blocking barriers are preferably provided with drain holes, and the number of the drain holes of each water blocking barrier is preferably 1-2; the plant biomass is reduced due to long-time soaking, the branch number is small, the water flooding stress can be effectively relieved through the drain holes, the influence of long-time soaking on seed germination and later seedling growth is reduced, part of seawater can be discharged and discharged at high temperature in summer and in large evaporation capacity, furrows are wetted downwards in sequence, part of water can be reserved in the planting frame, and water loss is prevented; the planting frame can drain rainwater and seawater into furrows in the rainy season, so that the intervention on seeds and seedlings is reduced.
In the invention, the planting frame can further block the action of a part of tides on the basis of micro-topography, so as to prevent seeds from flowing out of the planting area along with water flow.
The suaeda salsa seeds have the type II property, the black seeds have low germination force, but the storage endurance is better than that of brown seeds, and the subsequent community growth can be ensured. The present invention preferably further comprises Gibberellin (GA) 3 ) The aqueous solution is used for soaking the black seeds to promote the germination of the black seeds, so that the germination rate of the black seeds can be improved; the concentration of gibberellin in the gibberellin aqueous solution is preferably 800-1500 mg/L; the soaking time is preferably 20-30 hours, more preferably 24 hours; the black seeds have a longer dormancy period, the germination of the seeds can be greatly inhibited by high salt, and the germination strength of the black seeds can be effectively improved under the condition that the black seeds are required to be soaked in a gibberellin aqueous solution with the concentration of 800-1500 mg/L in advance through a hydroponic experiment; the low salt contributes to seed germination, the germination rate is significantly reduced as the salinity is increased, and black seeds are difficult to germinate when the salinity of the water exceeds 30%.
In the invention, the seeding time of the suaeda salsa is excellentSelecting a small tide period; after sowing a saline land suaeda salsa on the ridges, irrigating; the water used in the first irrigation is preferably fresh water, so that the salt content of soil can be reduced while the germination of seeds is stimulated, the seeds are uniformly attached to a slurry layer, and the sowing quantity of the seeds is preferably 6-8 g/m 2 More preferably 7g/m 2 The method comprises the steps of carrying out a first treatment on the surface of the After the first irrigation, the method preferably further comprises covering fine sand and fine soil on the surface of the seeds, and reseeding; the thicknesses of the fine sand and the fine soil are preferably less than or equal to 0.5cm, so that the problem that seeds germinate difficultly due to long-time soaking, siltation and airtight of the surface layer can be avoided, and the seeds germinate difficultly due to too thick coverage can be avoided.
In the invention, both the brown seeds and the black seeds of the suaeda salsa are sown on a mud layer.
Digging a planting pit, preferably before sowing the suaeda salsa on the ridges, sowing seeds into the pulp cup scattered with soil, and then paving the pulp cup into the planting pit; the pulp cup preferably maintains moisture until use. The wall of the paper pulp cup and the pit wall of the planting pit can reduce the tidal action during tidal flushing, and the influence on the growth of seedlings is reduced, even if water flows flush out seeds in the paper pulp cup, part of the seeds still can remain in the planting pit, and the problems of early attachment and retention of the seeds by tides during medium and large tides can be effectively relieved.
In the invention, the sowing time of the suaeda salsa is preferably 2 months of solar calendar in the same year.
After the saline land suaeda salsa is sowed on the ridges, the invention preferably also comprises covering the top of the planting frame with a film for heat preservation.
The characteristic of the emergency water flow is the difficulty of repairing the suaeda salsa in the tidal flat, and the emergency water flow condition makes seeds unable to remain. The method can effectively repair the growth of the suaeda salsa community on the tidal flat, and the spraying device and the water pipe left on the tidal flat can help the suaeda salsa community to resist the adversity in the follow-up process, and ensure the continuity of the suaeda salsa community through a manual intervention mode.
For further explanation of the present invention, a method for ecologically repairing a suaeda salsa on a coastal beach is provided in the following with reference to the drawings and examples, but they should not be construed as limiting the scope of the present invention.
Example 1
Example of east camping ecological restoration:
and 3 months in 2020, performing ecological restoration of suaeda salsa in coastal beach of the reclamation area in the eastern camping. The soil of the coastal beach of the east camping is muddy, and seeds can germinate and grow in a wet state; when the soil is hardened and harder after long-time insolation and water shortage, seeds cannot break through the soil surface layer.
The cross-section view of the terrain modification is shown in fig. 1, wherein 1 is a spray assembly, 2 is a planting frame, 3 is a slurry layer, 4 is a secondary buffer layer, 5 is a primary buffer layer, 6 is a water storage furrow, and 7 is a water supply pipe; the top view of the terrain modification is shown in fig. 2, wherein 1 is a spray assembly, 2 is a planting frame, 3 is a mud layer, 6 is a water storage furrow, and 7 is a water supply pipe.
The micro-topography consists of two water storage furrows with the edge being 50cm deep, a middle furrow with the depth being 20cm and two ridges with the height being 30cm.
Digging a water storage furrow on a vertical shoreline of a beach, wherein the depth of the water storage furrow is 50cm, a PE water supply pipe with the radius of 14cm is arranged at the bottom 50cm of the furrow, a water pipe is arranged at the top of the furrow, and the spraying height is 1m, and the interval is 4m; the slope of the other side of the ridge is 20cm higher than the beach, the gradient is kept at 63 degrees+/-3 degrees, a primary buffer layer (platform) with the width of 20cm is arranged in the area, a secondary buffer layer is arranged 20cm upwards, the area width is 3m, a spray header is arranged in the middle of the buffer layer, the depth of the spray header is 50cm, the spray header is communicated with 140 mm.140mm PE water supply pipes, the spray header is 50cm in spray height, the interval is 3m, and the area can be completely irrigated by water. A furrow with the depth of 20cm is arranged at the middle position of the two secondary buffer layers, and the width of the furrow with the depth of 20cm is 1m.
The second-level buffer layer is paved with slurry with the thickness of 3cm, square planting frames with the length of 5m, the width of 5m and the depth of 5cm are paved on the slurry, the planting frames are aligned in pairs, and the planting frames need to be pricked into the ground for 5-8 cm.
The schematic view of the planting frame is shown in fig. 3-6, wherein 8 is a water barrier, and 9 is a drain hole; the planting frame is made of PP, the length of the planting frame is 3m, the width of the planting frame is 2.8m, the height of the planting frame is 20cm, and the thickness of the planting frame is 3cm. The two water-blocking columns in the middle divide the planting frame into three parts, the planting frame starts to bend near the edge, and the bending position reaches 32+/-2.5 cm of the frame. On the fence around the planting frame, there are water outlet holes with diameter of 3cm, height of 10cm, 3 water outlet holes on two sides, 2 water outlet holes on the top frame, and 1 water outlet hole on the water blocking fence.
According to the embodiment, the influence of the tide action on the early growth of seeds is reduced by increasing the elevation of the repair area and excavating the tide ditch for water diversion irrigation, and part of tide water can be reserved on the surface and the tide ditch during tide removal for soil moisture preservation. The method comprises the steps of setting up a breeding area at the middle position of a repairing area, setting up the area which is originally lower in topography, and enabling one side of the area to be bordered by a bank, so that water supply and water storage are difficult, after transformation, digging square planting pits with the length and the width of 1m x 1m and the depth of 15cm in the area by increasing the earthwork elevation of the breeding area, sowing seeds in a pulp cup scattered with soil in advance, keeping moisture until the planting pits are used, and paving the pulp cup in the planting pits. A plurality of longitudinally extending spray pipelines are arranged on the breeding area and are arranged on two sides of the planting frame, and tidal ditches are excavated at the edges of the two sides of the area for water storage, so that the spray device can keep soil moist and soft, and is beneficial to breaking soil, sprouting and growth of seeds; the tidal ditches at the two sides can introduce seawater to achieve the effect of water storage. By means of the scheme, the problems of survival and growth of seedlings are finally guaranteed, the water supply problem of the on-way area is effectively solved by the tidal ditches dug at the two sides, the spraying device is started from 10 to 3 pm every day at the high-temperature stage of 7-8 months, and the survival rate of the seedlings at the high temperature is guaranteed. The retention ratio of the final seeds in the breeding area is about 68.8%, wherein the germination rate of seedlings is up to 82.3%, but the seedlings are affected by air temperature, and the sowing time is 6 months, so that the seedlings of the suaeda salsa are dead due to the continuous baking of the high surface temperature even under the condition of continuous spraying, the final survival rate is reduced to 62.7%, and the seedlings of the suaeda salsa which are sown and grown in 2-3 months can reach 230 plants/m 2 From the above, it is shown that the final effect is more remarkable if the sowing time is 2 months of the current year solar calendar.
Compared with the practical case, the invention mainly starts from the aspects of seed retention and adhesion, the retention condition of seeds in a planting area is firstly ensured, the seeds can be retained on a ridge slope through the use of a planting groove and the characteristics of double-ridge topography, a large amount of seeds cannot flow out, compared with a paper pulp cup, the planting groove has longer service life, can be recycled for multiple times, has flexible operability, provides a favorable growth environment for plant development, ensures energy-saving drainage and waterlogging prevention in rainy seasons, and can be used for moisturizing irrigation in hot and high-temperature seasons. Adverse effects on the growth of suaeda salsa are addressed by considering various factors such as tidal attack, high temperature, precipitation, and tidal phase, such as: two-stage ridge slope buffer layers are established. Erosion of tides to furrows and ridges and slopes is reduced; the mud is attached to the planting frame, seeds are firmly attached to the planting frame in the area during sowing, and under the protection of the planting frame, the seeds can still be largely reserved in the planting area, and water locking and drainage can be achieved. According to the invention, the double-ridge structure ensures that the ridge slopes are more stable and are not easy to be broken by tides, and shallow furrows between the double ridges can be irrigated by water and can be maintained by people; the spraying device of each ridge can be independently switched on and off, the diversity and the practicability of adjustment are improved, and the switch of the spraying system at the bottom of each ridge can be independently adjusted at the position of the main spray pipe.
Although the foregoing embodiments have been described in some, but not all, embodiments of the invention, it should be understood that other embodiments may be devised in accordance with the present embodiments without departing from the spirit and scope of the invention.

Claims (6)

1. A method for ecologically restoring suaeda salsa on coastal tidal flat comprises the following steps:
digging a plurality of water storage furrows perpendicular to a shoreline on a coastal beach, wherein a field ridge higher than the beach is arranged between two adjacent water storage furrows;
sowing a saline land suaeda salsa on the ridges;
the spray assembly is also arranged; the spraying area of the spraying assembly is a part or all of the surface of the ridge;
the depth of the water storage furrow below the mud flat is 45-55 cm;
the height of the ridge above the mud flat is 25-35 cm;
the number of the ridges between two adjacent water storage furrows is more than or equal to 2; middle furrows are also arranged between every two adjacent 2 ridges; the depth of the middle furrows lower than the ridges is 15-25 cm;
a platform is arranged on the slope surface of the ridge close to the water storage furrow;
the gradient of the ridge slope of the ridge is 60-66 degrees;
the spraying assembly comprises a first spraying assembly and/or a second spraying assembly; the first spraying assembly is communicated with the first water supply pipe; the first water supply pipe is arranged in a soil layer below the water storage furrow; the second spraying assembly is communicated with a second water supply pipe; the second water supply pipe is arranged in the soil layer below the ridge.
2. The method of claim 1, wherein the ridge surface is paved with a layer of mud.
3. The method of claim 2, wherein a plurality of planting frames are laid on the slurry layer; the depth of the planting frame inserted into the ground is 5-8 cm.
4. A method according to claim 3, wherein the planting frame is square with one side open; attaching adjacent planting frames; and drain holes are formed in the side frame of the planting frame.
5. The method of claim 3 or 4, wherein a water barrier is provided inside the planting frame that does not completely separate the planting frame.
6. The method of claim 5, wherein the number of the water barriers in each planting frame is 2, and the 2 water barriers are respectively fixed on the frames of the opposite planting frames.
CN202211162171.5A 2022-09-23 2022-09-23 Method for ecologically restoring suaeda salsa in coastal beach saline land Active CN115462210B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211162171.5A CN115462210B (en) 2022-09-23 2022-09-23 Method for ecologically restoring suaeda salsa in coastal beach saline land

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211162171.5A CN115462210B (en) 2022-09-23 2022-09-23 Method for ecologically restoring suaeda salsa in coastal beach saline land

Publications (2)

Publication Number Publication Date
CN115462210A CN115462210A (en) 2022-12-13
CN115462210B true CN115462210B (en) 2023-09-19

Family

ID=84334817

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211162171.5A Active CN115462210B (en) 2022-09-23 2022-09-23 Method for ecologically restoring suaeda salsa in coastal beach saline land

Country Status (1)

Country Link
CN (1) CN115462210B (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106068754A (en) * 2016-07-25 2016-11-09 河北省农林科学院滨海农业研究所 The method of flour sand Muddy Bottoms strand tidal flat revegetation
CN106358685A (en) * 2016-08-29 2017-02-01 山东胜伟园林科技有限公司 Method for drip irrigation planting of suaeda salsa in saline-alkali land
CN206042996U (en) * 2016-08-30 2017-03-29 山东胜伟园林科技有限公司 One kind is watered soil moisture conservation system
CN108617183A (en) * 2018-05-10 2018-10-09 天津泰达绿化集团有限公司 A kind of heavy saline-alkali area at seashore low cost, water-saving ecological fast repairing method
CN110771294A (en) * 2019-10-16 2020-02-11 天津泰达绿化集团有限公司 Ecological restoration method for bare land of coastal heavy saline-alkali land
CN111758327A (en) * 2020-07-31 2020-10-13 北京师范大学 Ridge supporting and plastic ditch repairing method for suaeda salsa in coastal degraded wetland
WO2021218552A1 (en) * 2020-04-30 2021-11-04 海南大学 Ecological restoration method for seawater-intruded farmland in tropical zone
CN216492394U (en) * 2021-08-17 2022-05-13 天津泰达绿化集团有限公司 Ecological quick recovery system for coastal heavy saline-alkali soil and water collecting plate used by system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106068754A (en) * 2016-07-25 2016-11-09 河北省农林科学院滨海农业研究所 The method of flour sand Muddy Bottoms strand tidal flat revegetation
CN106358685A (en) * 2016-08-29 2017-02-01 山东胜伟园林科技有限公司 Method for drip irrigation planting of suaeda salsa in saline-alkali land
CN206042996U (en) * 2016-08-30 2017-03-29 山东胜伟园林科技有限公司 One kind is watered soil moisture conservation system
CN108617183A (en) * 2018-05-10 2018-10-09 天津泰达绿化集团有限公司 A kind of heavy saline-alkali area at seashore low cost, water-saving ecological fast repairing method
CN110771294A (en) * 2019-10-16 2020-02-11 天津泰达绿化集团有限公司 Ecological restoration method for bare land of coastal heavy saline-alkali land
WO2021218552A1 (en) * 2020-04-30 2021-11-04 海南大学 Ecological restoration method for seawater-intruded farmland in tropical zone
CN111758327A (en) * 2020-07-31 2020-10-13 北京师范大学 Ridge supporting and plastic ditch repairing method for suaeda salsa in coastal degraded wetland
CN216492394U (en) * 2021-08-17 2022-05-13 天津泰达绿化集团有限公司 Ecological quick recovery system for coastal heavy saline-alkali soil and water collecting plate used by system

Also Published As

Publication number Publication date
CN115462210A (en) 2022-12-13

Similar Documents

Publication Publication Date Title
CN102273335B (en) Treatment and utilization method of muddy seashore saline soil
Punmia et al. Irrigation and water power engineering
CN101790933B (en) Method for constructing water fluctuation belt vegetations of Three Gorges reservoir by vertical arrangement of arbor-bush-grass
CN103125163B (en) Method for improving water quality of reservoir by utilizing space-time specificities of hydro-fluctuation belt
CN103314763A (en) Micro-reformation and vegetation restoration method for degraded plateau and lake wetlands
Unger Common soil and water conservation practices
CN101962947A (en) Method for restoring slash type degraded wetland
CN101507404B (en) Method for increasing calligonum drought stress resistance recovered by manpower on arid desert
CN106836113B (en) Self-organizing ecological wave-eliminating system
CN109588191A (en) A method of for restoring the mangrove on the beach of shrimp pool sewage draining exit region
CN109392349B (en) Method for planting sesbania through remediation of coastal mudflats of Jiangsu province
Tvedt et al. A history of water
Saxena Water conservation: Traditional rain water harvesting systems in Rajasthan
CN210151706U (en) Prevent soil erosion and water loss's afforestation equipment
CN115462210B (en) Method for ecologically restoring suaeda salsa in coastal beach saline land
WO2023174331A1 (en) Riparian zone of reservoir
CN100402756C (en) Live net mud-stopping dam
CN210827355U (en) Movable earth dam capable of preventing water and soil loss
CN101418551A (en) Farmland water storage for preventing flood the drought and systematic engineering for increasing groundwater recharge
KR200418676Y1 (en) colony block with coir roll
CN216960984U (en) Protector suitable for municipal administration side slope vegetation resumes
CN218353092U (en) Horizontal ditch water collection and soil moisture conservation soil preparation structure and vegetation recovery and water and soil conservation structure thereof
CN102144480A (en) Application of Hemarthria compressa and Hemarthria altissima in vegetation construction and ecological governance of water-level-fluctuating zones of reservoirs and rivers and lakes
CN218550818U (en) System capable of reducing water level of basement and providing irrigation for indoor plants
CN218148131U (en) River course self-locking brick shore protection with ecological restoration function

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant