CN104176830A - Lawn-type submerged plant transplantation mold and application thereof - Google Patents

Abstract

The invention relates to a lawn type submerged plant transplantation mold and an application thereof, belonging to the technical field of environmental restoration. It includes a frame and a bottom surface; the frame has four sides, the upper end of the frame is open, and a bottom surface is provided at the lower end, the bottom surface is formed by splicing and combining several inserts, and drainage grooves are left between the inserts. Lawn type submerged plants are obtained by filling, planting, cultivating and transplanting nutrient soil. The invention discloses a lawn type submerged plant transplantation mold and its application, which has the advantages of simple structure, convenient operation and low cost. Since the submerged plants are planted in an overall transplanting manner, the survival rate of the submerged plants can be effectively improved. It is especially suitable for planting submerged plants in the restoration of large water bodies such as lakes and reservoirs.

Description

A lawn type submerged plant transplantation mold and its application

technical field

The invention relates to a lawn type submerged plant transplantation mold and an application thereof, belonging to the technical field of environmental restoration.

Background technique

Eutrophication is a phenomenon of water pollution caused by excessive plant nutrients such as nitrogen and phosphorus. It is generally believed in the world that the total phosphorus concentration (TP) in lake water is greater than 0.02 mg/L, and the total nitrogen (TN) concentration is greater than 0.2 mg/L. mg/L is the occurrence concentration of lake eutrophication. Under natural conditions, with the continuous sedimentation and sedimentation of rivers carrying impact materials and aquatic biological debris on the bottom of the lake, the lake will transition from an oligotrophic lake to a eutrophic lake, and then evolve into a swamp and land. This is an extremely slow process. However, due to human activities, after a large amount of industrial wastewater, domestic sewage, and plant nutrients in farmland runoff are discharged into slow-flowing water bodies such as lakes, reservoirs, estuaries, and bays, aquatic organisms, especially algae, will multiply in large numbers, making the types of biological populations , and the quantity changes, destroying the ecological balance of the water body. According to the survey, among the 28 key lakes (reservoirs) controlled by the state, 2 meet the water quality of Class II, 6 of Class III, 4 of Class IV, 5 of Class V, and 11 of inferior Class V. The indicators are total nitrogen and total phosphorus. Most urban lakes in my country are already in a state of eutrophication or super eutrophication. As environmental problems become increasingly prominent and people pay more and more attention to environmental problems, the treatment of eutrophic lakes is currently being carried out all over the world. Water eutrophication control measures mainly include exogenous pollution control and endogenous pollution control. At present, the exogenous pollution of many lakes has been well controlled or alleviated, while the control methods of endogenous pollution are still being actively explored. The technologies for controlling endogenous water pollution can be divided into chemical methods, physical methods, and biological methods according to their nature. Among them, planting submerged plants in eutrophic water bodies is a commonly used bioremediation method. Plant submerged plants in eutrophic water bodies, through the absorption and adsorption of plants and the mechanism of species competition, the pollutants such as nitrogen and phosphorus in the water are converted into the energy required by plants and stored in the plants, so as to realize the improvement of the water environment. Kaizen, which has attracted much attention because of its many advantages.

However, most of the current methods of transplanting submerged plants are to directly plant submerged plants in the bottom mud of the water body. Due to factors such as fish agitation, wind agitation, low transparency, and poor light, the survival rate of submerged plants is very low. The development of submerged phytoremediation technology for eutrophic water bodies is largely restricted, so it is urgent to solve this problem.

Contents of the invention

The object of the present invention is to provide a lawn-type submerged plant transplantation mold and its application to solve the problems of difficulty in planting submerged plants and low survival rate in the restoration process of large water bodies such as lakes and reservoirs.

According to the technical solution provided by the present invention, a lawn type submerged plant transplantation mold includes a frame and a bottom surface; the frame has four sides, the upper end of the frame is open, and a bottom surface is provided at the lower end; the bottom surface is detachable. The frame is a whole, and the four sides are rectangular. The bottom surface is formed by splicing and combining several inserts, and drainage grooves are left between the inserts.

The application of the lawn type submerged plant transplantation mold, the steps are:

(1) Filling of nutrient soil: Place the frame on the corresponding bottom surface to form a rectangular lawn-type submerged plant transplantation mold; place nutrient soil in the lawn-type submerged plant transplantation mold and compact it;

(2) Planting: insert the seeds of submerged plants or the cuttings of aquatic plants in the nutrient soil;

(3) Cultivation: Put the lawn-type submerged plant transplantation mold with aquatic plants and nutrient soil in shallow water of 15-20cm for cultivation, and transplant after the new shoots of aquatic plants grow 2-3cm, at this time, the soil in the mold is agglomerated ;

(4) Transplanting: When transplanting, remove the frame, and only transplant the soil block with aquatic plants into the water body where aquatic plants need to be planted.

The planting process is as follows: cut the submerged plants into 6-10cm aquatic plants, and use every 5 sections as a plant, cuttages are placed in the nutrient soil, and the spacing between the plants and rows is controlled at 8-10cm, or the seeds of the submerged plants are directly cut into 8-10cm. Sow in nutritious soil.

Beneficial effects of the present invention: a lawn type submerged plant transplantation mold and its application in the present invention have simple structure, easy operation and low cost. Since the submerged plants are planted in an overall transplanting manner, the survival rate of the submerged plants can be effectively improved. It is especially suitable for planting submerged plants in the restoration of large water bodies such as lakes and reservoirs.

Description of drawings

Fig. 1 is a structural schematic diagram of a lawn type submerged plant transplanting mold of the present invention.

Detailed ways

Example 1

A lawn type submerged plant transplantation mold includes a frame 1 and a bottom surface 2; the frame 1 has four sides, the upper end of the frame 1 is open, and a bottom surface 2 is provided at the lower end; the bottom surface 2 is detachable. The frame 1 is a whole, and its four sides are rectangular. The bottom surface 2 is formed by splicing and combining several inserts 3, and there is a drainage groove between the inserts 3, and the width of the drainage groove is 1-2cm.

The cuboid mold is as shown in Figure 1, wherein AD is long 50cm, AB is long 50cm, and AC is long 6-8cm. The material of the cuboid can be polyethylene plastic and other materials; the four sides of the cuboid are connected together to form a frame (as a whole), which can be freely disassembled from the bottom surface of the cuboid.

Example 2

When planting submerged plants, place the frame formed by connecting the four sides together on the corresponding bottom surface to form a cuboid mold; place nutrient soil in the cuboid mold, compact it slightly, and cut the Elodea into a length of about 8cm For aquatic plants, every 5 sections are regarded as one plant, and the cuttings are placed in the nutrient soil, and the distance between plants and rows is controlled at 8-10cm (or sow the bitter grass seeds in the nutrient soil). Place the cuboid mold with aquatic plants and nutrient soil in shallow water of 15-20 cm for cultivation, and transplant after the new shoots of aquatic plants grow 2-3 cm. At this point the soil in the mold has agglomerated. When transplanting, the mold is removed, and only the soil block with aquatic plants is transplanted as a whole into the water body where aquatic plants need to be planted.

Claims (5)

1. A lawn type submerged plant transplantation mold, characterized in that: it includes a frame (1) and a bottom surface (2); the frame (1) has four sides, the upper end of the frame (1) is open, and the lower end is set A bottom surface (2); said bottom surface (2) can be disassembled. 2. The lawn type submerged plant transplantation mold according to claim 1, characterized in that: the frame (1) is a whole, and the four sides are all rectangular. 3. The lawn-type submerged plant transplantation mold according to claim 1, characterized in that: the bottom surface (2) is formed by splicing and combining several inserts (3), and drainage grooves are left between the inserts (3) . 4. the application of the lawn type submerged plant transplantation mold described in claim 1 is characterized in that the steps are: (1) Filling of nutrient soil: Place the frame (1) on the corresponding bottom surface (2) to form a cuboid lawn-type submerged plant transplantation mold; place nutrient soil in the lawn-type submerged plant transplantation mold and compact it; (2) Planting: insert the seeds of submerged plants or the cuttings of aquatic plants in the nutrient soil; (3) Cultivation: Put the lawn-type submerged plant transplantation mold with aquatic plants and nutrient soil in shallow water of 15-20cm for cultivation, and transplant after the new shoots of aquatic plants grow 2-3cm, at this time, the soil in the mold is agglomerated ; (4) Transplanting: Remove the frame (1) when transplanting, and only transplant the soil block with aquatic plants into the water body where aquatic plants need to be planted. 5. the application of the lawn type submerged plant transplantation mold described in claim 4 is characterized in that the planting process is: the submerged plant is cut into a 6-10cm water plant section, and every 5 sections are used as a plant, and the cuttings are used in nutrition. In the soil, the distance between plants and rows is controlled at 8-10cm, or the seeds of submerged plants are directly sown in the nutrient soil.