CN116535008A - Submerged plant community restoration method - Google Patents
Submerged plant community restoration method Download PDFInfo
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- CN116535008A CN116535008A CN202310548245.7A CN202310548245A CN116535008A CN 116535008 A CN116535008 A CN 116535008A CN 202310548245 A CN202310548245 A CN 202310548245A CN 116535008 A CN116535008 A CN 116535008A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C11/00—Transplanting machines
- A01C11/003—Transplanting machines for aquatic plants; for planting underwater, e.g. rice
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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
- A01G31/00—Soilless cultivation, e.g. hydroponics
- A01G31/02—Special apparatus therefor
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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
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Biodiversity & Conservation Biology (AREA)
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- Environmental & Geological Engineering (AREA)
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- Chemical & Material Sciences (AREA)
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Abstract
The invention relates to a method for recovering a submerged plant community, which comprises the following steps: s1, selecting seeds according to design requirements; s2, forming a cluster by every 3-5 submerged plants; s3, selecting a water-permeable non-woven fabric bag with binding wires; s4, preparing an ecological planting base, and filling the ecological planting base into a water-permeable non-woven fabric bag; s5, planting submerged plants in a water-permeable non-woven fabric bag filled with ecological planting bases, and sealing the water-permeable non-woven fabric bag by using binding wires; s6, throwing the water-permeable non-woven fabric bags of the planted submerged plants into the water body. The invention effectively ensures the planting and subsequent growth of submerged plants; by planting the target aquatic plants in the experimental area, the target submerged plants with better environmental adaptability can be obtained for popularization and planting, and recovery of the submerged plant community is facilitated. The method is suitable for the submerged plant community restoration engineering of river, lake and landscape water bodies.
Description
Technical Field
The invention relates to the technical field of ecological restoration of water bodies, in particular to a method for restoring a submerged plant community.
Background
In recent years, along with the serious and serious environmental pollution problem, the eutrophication process of more and more fresh water bodies such as lakes is accelerated, and the large aquatic plant community is gradually eliminated. The ecological restoration technology of the water body is an environmental biotechnology which is emerging in recent years and has been applied to more water body restoration and treatment projects. Restoration of submerged plant communities is a key technology in aquatic ecological restoration engineering, and restoration of water and sediment pollution by using macrophytes is one of effective ways for treating, regulating and inhibiting eutrophication of water. Submerged plants have huge biomass, exchange a large amount of substances and energy with the environment, and form huge environmental capacity and powerful self-cleaning capacity. The whole growth process of submerged plants is that the submerged plants are living in water, and the roots, stems and leaves can absorb nutrient substances in the water, and the growth and development process is that the nutrient substances in the water are absorbed, and rhizosphere microorganisms can degrade organic pollutants, so that the water quality is continuously purified and the bottom mud is repaired. However, many lakes and rivers are seriously polluted by the substrate, the anaerobic environment lacks the conditions required by plant rooting, submerged plants are difficult to grow in a fixed planting way, the submerged plants cannot be planted directly in general, or the survival rate of the submerged plants is low, and ecological restoration engineering is difficult to popularize and apply.
Disclosure of Invention
The invention aims to solve the technical problem of providing a submerged plant community restoration method which can improve restoration efficiency of lake and river water bodies, has the advantages of reasonable formula, convenient use, low cost, environmental friendliness and the like, provides a field planting carrier for submerged plant growth by wrapping submerged plants with ecological bases, improves pollution substrate sludge, can adsorb and accelerate pollutants such as mineralized substrate sludge organic matters in situ, and is beneficial to restoration of ecological environment of water areas and restoration and construction of an ecological system.
The technical scheme adopted for solving the technical problems is as follows: a method of constructing a submerged plant community restoration comprising the steps of:
s1, selecting seeds according to design requirements;
s2, forming a cluster by every 3-5 submerged plants;
s3, selecting a water-permeable non-woven fabric bag with binding wires;
s4, preparing an ecological planting base, and filling the ecological planting base into a water-permeable non-woven fabric bag;
s5, planting submerged plants in a water-permeable non-woven fabric bag filled with ecological planting bases, and sealing the water-permeable non-woven fabric bag by using binding wires;
s6, throwing the water-permeable non-woven fabric bags of the planted submerged plants into the water body.
According to the scheme, the density of the water permeable non-woven fabric bag is 20g/m 2 The size of the water-permeable non-woven fabric bag is 25cm multiplied by 32cm, the bag mouth of the water-permeable non-woven fabric bag is provided with binding wires, and the water-permeable non-woven fabric bag can be thoroughly decomposed within 90 days.
According to the scheme, the ecological planting base comprises 85-90% of clay, 10-15% of expanded vermiculite and 8.5% of plant growth regulator: 1.5 to 9:1, the grain diameter of the expanded vermiculite is 1-3 mm.
According to the scheme, the ecological planting base is prepared by uniformly mixing clay and expanded vermiculite in a stirrer to form a mixture, filling the mixture into water-permeable non-woven fabric bags, and adding 2.5mg of ammonia fresh fat DA-6 into each bag.
According to the scheme, the submerged plant community is formed by planting 16-25 clusters of submerged plants per square meter, throwing and planting the submerged plant community at intervals uniformly, and plant roots of the submerged plant community are embedded in ecological planting bases.
According to the scheme, the submerged plant is one or any combination of two to three of dwarf cold-resistant bitter grass, water caltrop and black algae.
The method for restoring the submerged plant community has the following beneficial effects:
1. the invention provides a method for improving ecological environment of a submerged plant community of a polluted lake and river, which comprises the steps of embedding roots of submerged plants, then throwing the submerged plants to an engineering water area, and effectively ensuring planting and subsequent growth of the submerged plants;
2. the ecological planting base is internally filled with clay and expanded vermiculite particles, the expanded vermiculite is an ore raw material with porous performance, is often used as a wetland functional filler, has strong adsorption effect and large specific surface area, can provide a huge attachment space for a microbial community, can be used as a natural adhesive to fix the expanded vermiculite to form a stable planting structure after meeting water, provides favorable conditions for the growth of submerged plants, ensures that the growth of the submerged plants is not easy to fall, and improves the survival rate of the submerged plants. The outside of the ecological planting base is wrapped by a water-permeable non-woven fabric bag, and plant roots can penetrate through the water-permeable non-woven fabric bag and enter into the bottom mud and the water body to directly absorb nitrogen, phosphorus and organic matters in the water body as nutrient sources for plant growth;
3. according to the invention, after the water-permeable non-woven fabric bag is thoroughly degraded, the ecological planting base is mixed with the in-situ polluted substrate sludge, so that the substrate condition can be improved, the ecological planting base and the submerged plant root system form a stable microenvironment in the degradation process, a large amount of beneficial microorganism flora is propagated in a local space, and the anaerobic state of the polluted substrate sludge is effectively improved;
4. the method has simple process operation, does not need engineering equipment with complex process, has low cost compared with the method for planting the submerged plants after dredging, and has good effect of restoring the submerged plant community.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a flow chart of a method of submerged plant community restoration of the present invention;
FIG. 2 is a schematic diagram of a single-cluster submerged plant planting structure according to the present invention;
FIG. 3 is a plan view of a submerged plant planting in the present invention.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present invention, a detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.
1-3, the submerged plant community restoration method comprises the steps of submerged plant 1 selection, planting density control and ecological planting base 3 preparation, wherein the ecological planting base 3 consists of clay, expanded vermiculite and plant growth regulator, the submerged plant 1 and the ecological planting base 3 are packaged and split-packed by a water-permeable non-woven fabric bag 4, and finally the split-packed submerged plant 1 is thrown and planted at the bottom of a lake or river water body; the method specifically comprises the following steps:
s1, selecting seeds according to design requirements;
s2, forming a cluster by every 3-5 submerged plants 1;
s3, selecting a water-permeable non-woven fabric bag 4 with binding wires 2; the density of the water permeable non-woven fabric bag 4 is 20g/m 2 The size of the water-permeable non-woven fabric bag 4 is 25cm multiplied by 32cm, the bag mouth of the water-permeable non-woven fabric bag 4 is provided with the binding wires 2, the material air permeability of the water-permeable non-woven fabric bag 4 is good, 1 root system of submerged plant can penetrate the water-permeable non-woven fabric bag 4 and propagate at the bottom of a lake or river, and the water-permeable non-woven fabric bag 4 can be thoroughly decomposed within 90 days.
S4, preparing an ecological planting base 3, and filling the ecological planting base into a water-permeable non-woven fabric bag 4; the ecological planting base 3 comprises, by mass, 85% -90% of clay, 10% -15% of expanded vermiculite and 8.5% of plant growth regulator: 1.5 to 9:1, the grain diameter of the expanded vermiculite is 1-3 mm. The ecological planting base 3 is prepared by placing clay and expanded vermiculite in a stirrer, uniformly mixing to form a mixture, filling the mixture into water-permeable non-woven fabric bags 4, and adding 2.5mg of polyurethane fresh fat DA-6 into each bag. DA-6 can improve the activities of plant peroxidase and nitrate reductase, improve the content of chlorophyll, accelerate photosynthesis, promote the division and elongation of plant cells, promote the development of root systems, and regulate the balance of nutrients in the body. The formation process of the expanded vermiculite comprises the following steps: the vermiculite mineral is crushed and heated to 300-500 ℃, worm-like exfoliation is generated along the c axis of the crystal of the vermiculite, and the vermiculite rapidly expands and bends after dehydration to form expanded vermiculite with large surface area, multiple pores and good water absorption.
S5, planting submerged plants 1 in a water-permeable non-woven fabric bag 4 filled with ecological planting bases 3, and sealing by using binding wires 2;
s6, throwing the water-permeable non-woven fabric bag 4 of the planted submerged plant 1 into the water body. The community of the submerged plants 1 is that 16-25 clusters of submerged plants 1 are planted per square meter, throwing planting is evenly arranged at intervals, plant roots of the community of the submerged plants 1 are embedded in a ecological planting base 3, and the bag mouth is closed by a binding wire 2. The submerged plant 1 meets the local climate and water area conditions and is one or any combination of two to three of dwarf frigid-resistant bitter grass, water caltrop and black algae. The submerged plant 1 single plant needs to have a complete root system, the root system is embedded in the ecological planting base 3, the embedded depth is more than 5cm, and the submerged plant 1 single plant is 15-25 cm long and is most suitable.
The clay is soil with few sand particles and viscosity, has better plasticity, can be used as an environment-friendly substrate reconstruction material to be applied to a water body polluted by the substrate sludge, but is only paved to reconstruct lakes or rivers, and the compacted clay is easy to harden to cause an anoxic environment, so that the root system of the submerged plant 1 is difficult to grow and rot. The porous expanded vermiculite is added to increase the air space of the substrate, the ammonia fresh fat DA-6 is added to promote the plant root system to fix and grow, and the expanded vermiculite has strong adsorption performance after meeting water, can adsorb nutrient salts such as nitrogen, phosphorus and the like in the substrate sludge and the water body, can provide a nutrient source for the initial growth of the submerged plant 1 while repairing the substrate sludge in the quality position, and can degrade and mineralize organic matters by biological films formed on the surface of the expanded vermiculite and microorganisms at the root of the submerged plant 1. The invention aims to improve the living environment of polluted substrate in demonstration areas by mixing clay and expanded vermiculite according to a certain proportion as ecological planting base 3 in the restoration engineering of eutrophic water body, so that the ecological planting base is suitable for the growth of submerged plants 1, effectively solves the problems of difficult rooting, easy floating, low survival rate and the like of the submerged plants 1 in polluted substrate sludge, has the survival rate of 85 percent, and simultaneously adsorbs pollutants such as substrate sludge organic matters in situ so as to accelerate the recovery and construction of an ecological system. By the implementation of the invention, the problem that the submerged plant 1 floats upwards due to the loss of planting soil after throwing is avoided, the problem that the root system of the plant cannot penetrate through the wrapping material and cannot contact with the bottom mud of the lake or river to root is avoided, and the problem that the root of the plant cannot be rotten due to lack of oxygen due to the adoption of the water-permeable wrapping material is also solved.
Example 1
A method for restoration of a submerged plant community, comprising the steps of:
s1, implementing the invention in an ecological restoration demonstration area of a lake with a certain polluted substrate in A province, firstly defining 2000m 2 Is a demonstration area of (2);
s2, selecting three submerged plants 1 of dwarf cold-resistant hay, leaf blade black algae and water caltrop according to design requirements, trimming the submerged plants 1 to 15cm in length, and preserving intact root systems;
s3, preparing an ecological planting base 3, and filling the ecological planting base into a water-permeable non-woven fabric bag 4;
s4, planting each cluster of submerged plants 1 in a water-permeable non-woven fabric bag 4 provided with an ecological planting base 3, and sealing the water-permeable non-woven fabric bag by using a binding wire 2, wherein each cluster of submerged plants 1 consists of 5 plants;
s5, finally, throwing the water-permeable non-woven fabric bag 4 planted with the submerged plant 1 into water, and ensuring that the planting density in the demonstration area is 16 clusters/m 2 ；
S6, carrying out periodic monitoring and maintenance, wherein the monitoring period is 1 time every 2 days and 3-8 weeks, the monitoring period is 1 time every week, and the monitoring period is 1 time every month after the completion of planting, and the monitoring indexes are as follows: the growth condition, coverage, biomass and the like of the submerged plant 1 are timely cleared for salvaging rotted branches and dead or floating plants according to the on-site monitoring condition;
s7, after planting for 6 months, the survival rate of the dwarf cold-resistant bitter grass reaches 85%, 65% of planting area is covered by the bitter grass, the transparency of the water body in the ecological restoration demonstration area is improved by 15cm, and the removal rates of organic matters, total nitrogen and total phosphorus on the surface layer (0-10 cm) of the bottom mud reach 34%, 6% and 13% respectively;
s8, after 6 months of planting, the survival rate of the black algae on the leaf blade reaches 72.9%, 57% of the planting area is covered by the black algae on the leaf blade, the transparency of the water body in the ecological restoration demonstration area is improved by 11cm, and the removal rates of organic matters, total nitrogen and total phosphorus on the surface layer (0-10 cm) of the sediment reach 24%, 4.9% and 10.7% respectively;
s9, after planting for 6 months, the survival rate of the water caltrop reaches 76%, 62% of the planting area is covered by the black algae with the leaf blade, the transparency of the water body in the ecological restoration area is improved by 15cm, and the removal rates of organic matters, total nitrogen and total phosphorus on the surface layer (0-10 cm) of the sediment reach 27%, 6.2% and 11.4% respectively. Since the water caltrop is planted in winter, the water caltrop gradually dies after the water caltrop grows from 3 months to 8 months.
Example 2
A method for restoration of a submerged plant community, comprising the steps of:
s1, implementing the invention in an ecological restoration demonstration area of a lake with a certain pollution substrate in B city, firstly defining 200m 2 Of (3), wherein 100m 2 For the test area, 100m 2 The plant species and the planting density selected in the blank control area are consistent with those in the test area;
s2, selecting three submerged plants 1 of dwarf cold-resistant hay, leaf blade black algae and water caltrop according to design requirements, trimming the submerged plants 1 to 15cm in length, and preserving intact root systems;
s3, preparing an ecological planting base 3, and filling the ecological planting base into a water-permeable non-woven fabric bag 4;
s4, planting each cluster of submerged plants 1 in a water-permeable non-woven fabric bag 4 provided with an ecological planting base 3, sealing by using a binding wire 2, wherein each cluster of submerged plants 1 consists of 6 plants, and each variety 2 of three submerged plants 1;
s5, finally, throwing the water-permeable non-woven fabric bag 4 planted with the submerged plant 1 into water, and ensuring that the planting density in the demonstration area is 16 clusters/m 2 ；
S6, carrying out periodic monitoring and maintenance, wherein the monitoring period is 1 time every 2 days and 3-8 weeks, the monitoring period is 1 time every week, and the monitoring period is 1 time every month after the completion of planting, and the monitoring indexes are as follows: the growth condition, coverage, biomass and the like of the submerged plant 1 are timely cleared for salvaging rotted branches and dead or floating plants according to the on-site monitoring condition;
s7, after planting for 6 months, the survival rate of the dwarf cold-resistant bitter grass reaches 82%, the survival rate of the black algae with leaves reaches 23%, the survival rate of the water caltrop reaches 47%, the bitter grass in the planting area is the dominant species, the total biomass of the submerged plant 1 in the test area is increased by 347%, the transparency of the water body in the ecological restoration area is improved by 32cm, and the removal rates of organic matters, total nitrogen and total phosphorus on the surface layer (0-10 cm) of the sediment reach 42%, 6.7% and 11.5% respectively.
Comparative example
Planting submerged plants 1 in a lake with a polluted substrate in Jiangxi province, wherein the planting area is 3000m 2 Wherein, the plant species selected by the cuttage method are dwarf cold-resistant hay, black algae and potamogeton crispus; the planting mode is single-variety planting, each variety is planted for 1000m 2 The density of the planting is 16 clusters/m 2 。
And 3, finishing planting, and carrying out periodic monitoring and maintenance after planting, wherein the first 2 weeks after planting is finished. The monitoring period is 1 time every 2 days, 3-8 weeks, 1 time every week, and 1 time every month thereafter. The monitoring indexes are as follows: growth conditions, coverage, biomass and the like of submerged plants 1. The method is used for timely removing and salvaging rotting residual branches and dead or floating plants according to the on-site monitoring condition.
After 6 months of planting, the survival rate of the dwarf cold-resistant bitter grass reaches 43 percent, the survival rate of the black algae on the leaves is 22 percent, the survival rate of the potamogeton crispatus is 34 percent, the biomass of the dwarf cold-resistant bitter grass in the planting area is increased by 126 percent, the biomass of the black algae on the leaves is reduced by 34 percent, the biomass of the potamogeton crispatus is increased by 83 percent, and the transparency of the water body in the dwarf cold-resistant bitter grass area is improved by 10cm. The transparency of the water body in the leaf blade black algae area is not obviously improved, and the transparency of the water body in the water caltrop area is improved by 10cm. The removal rates of organic matters, total nitrogen and total phosphorus on the surface layer (0-10 cm) of the bottom mud in the dwarf cold-resistant bitter grass area respectively reach 27%, 4% and 7.9%. The organic matters, the total nitrogen and the total phosphorus removal rate on the surface layer (0-10 cm) of the sediment in the leaf blade black algae area have no obvious effect. The removal rates of organic matters, total nitrogen and total phosphorus on the bottom mud surface layer (0-10 cm) in the water caltrop area reach 22%, 3% and 6.8% respectively.
By combining two examples and analysis of a comparative example, the method provided by the invention can effectively solve the problem of easy floating during the fresh transplanting of the submerged plant 1, the improved substrate can in-situ adsorb and accelerate mineralization of pollutants such as sediment organic matters, and provide a nutrition source for the initial growth of the submerged plant 1 while in-situ repairing the sediment, thereby promoting the field planting and growth of plant roots. The method has simple process operation, no need of engineering equipment with complex process, low cost compared with the method of planting the submerged plants 1 after dredging, good effect of recovering the community of the submerged plants 1, and the method is suitable for the recovery engineering of the community of the submerged plants 1 in river, lake and landscape water bodies.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.
Claims (6)
1. A method for restoration of a submerged plant community, comprising the steps of:
s1, selecting seeds according to design requirements;
s2, forming a cluster by every 3-5 submerged plants;
s3, selecting a water-permeable non-woven fabric bag with binding wires;
s4, preparing an ecological planting base, and filling the ecological planting base into a water-permeable non-woven fabric bag;
s5, planting submerged plants in a water-permeable non-woven fabric bag filled with ecological planting bases, and sealing the water-permeable non-woven fabric bag by using binding wires;
s6, throwing the water-permeable non-woven fabric bags of the planted submerged plants into the water body.
2. The method for restoration of submerged plant community according to claim 1, wherein the density of the water-permeable non-woven bag is 20g/m 2 The size of the water-permeable non-woven fabric bag is 25cm multiplied by 32cm, the bag mouth of the water-permeable non-woven fabric bag is provided with binding wires, and the water-permeable non-woven fabric bag can be thoroughly decomposed within 90 days.
3. The method for restoring the submerged plant community according to claim 1, wherein the ecological planting base comprises 85-90% of clay, 10-15% of expanded vermiculite and a plant growth regulator, and the mass fraction of the ecological planting base is 8.5:1.5 to 9:1, the grain diameter of the expanded vermiculite is 1-3 mm.
4. A method of restoring submerged plant communities according to claim 3, wherein the ecological planting base is prepared by mixing clay and expanded vermiculite in a mixer to form a mixture, filling the mixture into water-permeable non-woven bags, and adding 2.5mg of diethyl aminoethyl hexanoate DA-6 to each bag.
5. The method for restoring a submerged plant community according to claim 1, wherein the submerged plant community is formed by planting 16-25 clusters of submerged plants per square meter and uniformly arranging throwing planting at intervals, and plant roots of the submerged plant community are embedded in ecological planting bases.
6. The method of claim 1, wherein the submerged plant is one of or any combination of two to three of dwarf frigid-grass, curly pondweed and black algae.
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| CN202310548245.7A CN116535008A (en) | 2023-05-12 | 2023-05-12 | Submerged plant community restoration method |
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Citations (5)
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|---|---|---|---|---|
| DE4016824A1 (en) * | 1990-05-26 | 1991-01-31 | Mueller Liewig Gmbh | Prodn. of shaped articles from inorganic granules - for use as plant growth substrate |
| US20060156623A1 (en) * | 2003-07-04 | 2006-07-20 | Ahm Poul H | Seed tape including successively arranged germinating units |
| CN101790932A (en) * | 2010-02-09 | 2010-08-04 | 四川省励自生态技术有限公司 | Seed heap of vegetation net |
| CN110012815A (en) * | 2019-04-24 | 2019-07-16 | 上海山恒生态科技股份有限公司 | A kind of submerged plant planting method |
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2023
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|---|---|---|---|---|
| DE4016824A1 (en) * | 1990-05-26 | 1991-01-31 | Mueller Liewig Gmbh | Prodn. of shaped articles from inorganic granules - for use as plant growth substrate |
| US20060156623A1 (en) * | 2003-07-04 | 2006-07-20 | Ahm Poul H | Seed tape including successively arranged germinating units |
| CN101790932A (en) * | 2010-02-09 | 2010-08-04 | 四川省励自生态技术有限公司 | Seed heap of vegetation net |
| CN110012815A (en) * | 2019-04-24 | 2019-07-16 | 上海山恒生态科技股份有限公司 | A kind of submerged plant planting method |
| CN111792973A (en) * | 2020-08-03 | 2020-10-20 | 西南科技大学 | A kind of mine repair base material and its preparation method and use method |
Non-Patent Citations (1)
| Title |
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| 高峰等: "《潜流人工湿地对水体中金属的阻控效果与机理研究》", 30 November 2022, 黄河水利出版社, pages: 11 * |
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