CN111847649A - Method for recovering submerged plants in northern lakes - Google Patents
Method for recovering submerged plants in northern lakes Download PDFInfo
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- CN111847649A CN111847649A CN202010705343.3A CN202010705343A CN111847649A CN 111847649 A CN111847649 A CN 111847649A CN 202010705343 A CN202010705343 A CN 202010705343A CN 111847649 A CN111847649 A CN 111847649A
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- water
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- submerged plants
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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
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G31/00—Soilless cultivation, e.g. hydroponics
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Botany (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Environmental Sciences (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a method for recovering submerged plants in a northern lake, which comprises the following steps: before 11 months, water caltrop seeds can be splashed, and the splashing amount is 60-80 granules per square meter; planting the potherb mustard in march of the second year, selecting tender seedlings of the potherb mustard for planting, planting 30-40 pieces per square meter, planting the watermifoil in May of the second year, planting the Kalanchoe algae in July of the second year, planting the Allergium algae in May of the second year by using a cage-hanging mode, and planting the water lily and the lotus in shallow water (the water depth is less than 1 meter) in February of the second year. By adopting the restoration method, the water quality can be stabilized to be more than III-class water quality all the year by utilizing the succession of aquatic plants in different seasons.
Description
Technical Field
The invention relates to the technical field of water body restoration, in particular to a method for restoring submerged plants in northern lakes.
Background
At present, the pollution of lakes and reservoirs is a fact that the pollution is not contended, which becomes the focus of global attention, and particularly, in China, the ecological environment condition of lakes generally has a plurality of problems: heavy metal pollution in lakes, silt siltation, lake surface recession, salinization, eutrophication, etc., and thus ecological environment deterioration and resource recession. Especially in eastern densely populated areas, lakes are increasingly polluted. Lakes in many areas are drinking water sources, and the lakes lose self-purification capacity, so that the quality of the drinking water sources is threatened. The eutrophication of lakes and reservoirs leads to the increase of phytoplankton in the water body and the extinction of submerged plants. The recovery of submerged plants still lags behind a considerable time after the exogenous pollutants are reduced, and the recovery of submerged plants is crucial to the long-term benefits of shallow lake remediation. The submerged plant is mainly repaired by natural repair and is repaired by artificial repair. The development of a diversity plant community which takes the stonewort plants as the dominant population and the weeds and submerged plants are symbiotic. The restoration of the submerged plants plays an important role in improving the ecological environment of shallow lakes and promoting the healthy development of the lakes.
Submerged plants are large aquatic plants whose plant bodies are all located below the water layer and live in a nutritional and fixed manner. Their roots are sometimes underdeveloped or degraded, and parts of the plant body can absorb water and nutrients, and the aeration tissue is particularly developed, facilitating gas exchange in the absence of air in water. Because the submerged plants release oxygen in the water body under the photosynthesis, the oxygen is important for the self-purification effect of the eutrophic water body, and the important position of the submerged plants in the water ecosystem is determined. Submerged plants play an important role in water ecosystem as the primary producer. In the reconstruction and restoration of the lake ecosystem, the reconstruction of submerged plants is a key step.
Disclosure of Invention
The invention aims to provide a method for recovering submerged plants in a northern lake, which can stabilize the water quality to be more than III-class water quality for years by utilizing succession of aquatic plants in different seasons.
The purpose of the invention is realized as follows: a method for recovering submerged plants in a northern lake comprises the following steps:
s1, collecting water caltrop seeds in winter in the previous year, and splashing the water caltrop seeds into the lake;
s2, planting 30-40 eyedrops in march of the second year, and fishing out the broken leaves from the water after planting;
S3, planting the myriophyllum in May month in the second year;
s4, planting the Kjellmaniella during July of the second year;
s5, growing the elodea nutans in May;
s6, planting water lily and lotus in the shallow water area with the water depth less than one meter in February of the second year, wherein 40-60 plants are planted per square meter.
Further, in the step S2, after the crushed leaves are fished out of the water, reseeding is performed after one month according to the survival rate of the gynura bicolor, so that the planting amount per square meter reaches a preset amount.
Further, in the step S3, the planting amount of the watermifoil is the same as that of the eyedrops.
Further, in the step S4, the amount of the seeds of the dartbia macrorrhiza planted is the same as the amount of the seeds of the curly pondweed planted.
Further, in the step S5, when the elodea algae is planted, a plurality of groups of cages are used as a growth carrier foundation of the elodea algae, each group of cages is provided with a plurality of pulling ropes, each group of cages is connected in series by one pulling rope, two ends of each pulling rope cross the lake and are respectively connected with the upright rods arranged on two sides of the lake, and two ends of each pulling rope are respectively connected to the two upright rods in a lifting and adjusting manner so as to adjust the height of the cages and the elodea algae in the water, after one month, the height of the cages and the elodea algae in the water is reduced, after another month, the height of the cages and the elodea algae in the water is reduced, and the stems and leaves of the elodea algae can obtain.
The invention has the beneficial effects that: by adopting the restoration method, the water quality can be purified by utilizing the succession of the aquatic plants in different seasons, namely, the aquatic plants of different types are alternately used along with the change of the seasons, the planting mode is correspondingly improved, and the water quality is stabilized to be more than type III water quality all the year through the flexible configuration of the planting time of the aquatic plants.
Detailed Description
The present invention is further illustrated by the following specific examples.
The method for recovering submerged plants in the northern lake in the embodiment comprises the following steps.
S1, collecting water caltrop seeds (avoiding black and selecting green) in winter of the previous year, sprinkling water caltrop seeds before 11 months on a ship, salvaging and sampling in 12 months, wherein water caltrop has grown new buds, the sprinkling amount of the water caltrop seeds is based on 60-80 potions per square meter, the survival rate is 30%, and the growth amount of the water caltrop seeds per square meter in the spring of the second year is about 15-25 potions per square meter.
S2, planting the eyedrops in the third month of the next year, selecting tender seedlings of the eyedrops for planting, wherein the planting amount per square meter is 30-40, fishing out the broken leaves from the water after planting, and performing reseeding according to the survival rate of the eyedrops after one month so that the planting amount per square meter reaches a preset amount, the expected water quality purification effect is achieved, and the reseeding is generally 10%.
S3, planting the watermifoil in May month in the second year, selecting grown plants for planting, fishing the watermifoil from lakes in the south, and transporting the watermifoil to the area needing vegetation recovery by a vehicle, wherein the watermifoil can automatically breed in the second year, the planting amount of the watermifoil is the same as that of the euglena, and after the watermifoil is planted, the watermifoil does not need to be fished to crush leaves and stems.
S4, planting Arrowia darussuriensis in July of the second year, wherein the amount of the seeds splashed is the same as that of the water caltrops when the water caltrops are planted, and the Arrowia darussuriensis grows in autumn.
S5, planting elodea nuttallii in May, when elodea nuttallii is planted, a plurality of groups of suspension cages are used as growth carrier foundations of elodea nuttallii, each group of suspension cages is provided with a plurality of suspension cages, each group of suspension cages is connected in series through a pull rope, the plurality of suspension cages are connected in series on the pull ropes at equal intervals, three meters are used as intervals between any two adjacent suspension cages, two ends of each pull rope cross over the lake and are respectively connected with upright rods arranged on two sides of the lake, and two ends of each pull rope are respectively connected on the two upright rods in a lifting adjusting mode so as to adjust the heights of the suspension cages and the elodea nuttallii in water, the heights of the suspension cages and the elodea nuttallii in water are reduced after one month, the heights of the suspension cages and the elodea nuttallii in water are; the bottom of the suspension cage in the step is used for suspending a stone heavy object through a rope.
S6, planting water lily and lotus in the shallow water area with the water depth less than one meter in February of the second year, wherein 40-60 plants are planted per square meter.
Through the steps, the restoration method can stabilize the water quality to the water quality above class III for years by utilizing the succession of the aquatic plants in different seasons.
The aquatic plant growing area is a bank zone and an underwater dark dike which are ten meters from the edge of the bank to the center of the lake.
While the preferred embodiments of the present invention have been described, those skilled in the art will appreciate that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A method for recovering submerged plants in a northern lake is characterized by comprising the following steps:
s1, collecting water caltrop seeds in winter in the previous year, and splashing the water caltrop seeds into the lake;
s2, planting 30-40 eyedrops in march of the second year, and fishing out the broken leaves from the water after planting;
s3, planting the myriophyllum in May month in the second year;
s4, planting the Kjellmaniella during July of the second year;
s5, growing the elodea nutans in May;
s6, planting water lily and lotus in the shallow water area with the water depth less than one meter in February of the second year, wherein 40-60 plants are planted per square meter.
2. The method for recovering submerged plants in a northern lake according to claim 1, wherein the method comprises the following steps: and S2, fishing out the broken leaves from the water, and performing reseeding after one month according to the survival rate of the gynura divaricata to enable the planting amount per square meter to reach a preset amount.
3. The method for recovering submerged plants in a northern lake according to claim 1, wherein the method comprises the following steps: in the step of S3, the planting amount of the watermifoil is the same as that of the potamogeton mukurossi.
4. The method for recovering submerged plants in a northern lake according to claim 1, wherein the method comprises the following steps: s4, when the Artesia dartaginea is planted, the amount of the seeds splashed by the Artesia dartaginea is the same as that of the water caltrop when the water caltrop is planted.
5. The method for recovering submerged plants in a northern lake according to claim 1, wherein the method comprises the following steps: s5, when the elodea nuttallii is planted, a plurality of groups of suspension cages are used as growth carrier foundations of the elodea nuttallii, each group of suspension cages is provided with a plurality of suspension cages, each group of suspension cages is connected in series by a pull rope, two ends of each pull rope stretch across the lake and are respectively connected with the upright rods arranged on two sides of the lake, two ends of each pull rope are respectively connected with the two upright rods in a lifting and adjusting mode so as to adjust the heights of the suspension cages and the elodea nuttallii in water, the heights of the suspension cages and the elodea nuttallii in water are reduced after one month, the heights of the suspension cages and the elodea nuttallii in water are reduced after another month, and the stems and.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010705343.3A CN111847649A (en) | 2020-07-21 | 2020-07-21 | Method for recovering submerged plants in northern lakes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010705343.3A CN111847649A (en) | 2020-07-21 | 2020-07-21 | Method for recovering submerged plants in northern lakes |
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| CN111847649A true CN111847649A (en) | 2020-10-30 |
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| CN202010705343.3A Pending CN111847649A (en) | 2020-07-21 | 2020-07-21 | Method for recovering submerged plants in northern lakes |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310590A (en) * | 2014-10-22 | 2015-01-28 | 中国科学院南京地理与湖泊研究所 | Method for constructing lake submerged plant communities |
| CN104743675A (en) * | 2015-04-09 | 2015-07-01 | 临沂大学 | Method for controlling lake eutrophication by regulating and controlling submerged plant growth through water depth |
| CN105540858A (en) * | 2016-01-06 | 2016-05-04 | 中国科学院南京地理与湖泊研究所 | System and method for improving black and odorous riverway water quality through micro-aeration and submerged plants |
| CN105776557A (en) * | 2016-04-25 | 2016-07-20 | 江苏江达生态科技有限公司 | Reconstruction method of submerged plant communities in shallow lakes |
| US20210047010A1 (en) * | 2019-08-15 | 2021-02-18 | Fishery Machinery And Instrument Research Institute, Chinese Academy Of Fishery Sciences | Floating hydrophyte planting device |
-
2020
- 2020-07-21 CN CN202010705343.3A patent/CN111847649A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310590A (en) * | 2014-10-22 | 2015-01-28 | 中国科学院南京地理与湖泊研究所 | Method for constructing lake submerged plant communities |
| CN104743675A (en) * | 2015-04-09 | 2015-07-01 | 临沂大学 | Method for controlling lake eutrophication by regulating and controlling submerged plant growth through water depth |
| CN105540858A (en) * | 2016-01-06 | 2016-05-04 | 中国科学院南京地理与湖泊研究所 | System and method for improving black and odorous riverway water quality through micro-aeration and submerged plants |
| CN105776557A (en) * | 2016-04-25 | 2016-07-20 | 江苏江达生态科技有限公司 | Reconstruction method of submerged plant communities in shallow lakes |
| US20210047010A1 (en) * | 2019-08-15 | 2021-02-18 | Fishery Machinery And Instrument Research Institute, Chinese Academy Of Fishery Sciences | Floating hydrophyte planting device |
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