CN110754278A - Ecological restoration method for vegetation in coastal sandy land - Google Patents
Ecological restoration method for vegetation in coastal sandy land Download PDFInfo
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- CN110754278A CN110754278A CN201910998401.3A CN201910998401A CN110754278A CN 110754278 A CN110754278 A CN 110754278A CN 201910998401 A CN201910998401 A CN 201910998401A CN 110754278 A CN110754278 A CN 110754278A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
- A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
- A01G13/0256—Ground coverings
- A01G13/0268—Mats or sheets, e.g. nets or fabrics
- A01G13/0275—Films
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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
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
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Abstract
The invention provides an ecological restoration method for vegetation in coastal sandy land, and relates to the technical field of soil treatment. The ecological restoration method for the vegetation in the coastal sandy land is characterized in that the arable tree is planted at the soil connection part around a sand dune, and the arable tree is planted for four circles. According to the ecological restoration method for the coastal sandy land vegetation, the red clover contains components such as flavonoids, proteins, amino acids, sugars, vitamins and the like, the sesbania is an excellent summer green manure crop, the nitrogen fixation capacity is strong, the nutrient content of the plant is rich, the soil improvement and yield increase effects are obvious after turning over and pressing, particularly in low-lying saline alkali areas prone to waterlogging, the lotus corniculatus is trampling-resistant, strong in reproducibility and drought resistance, the lotus corniculatus, the sesbania and the red clover can be compatible with most coastal sandy land rural soil plants and have no harm, and on the contrary, the lotus corniculatus, the lotus sesbanus and the red clover can fix nitrogen through rhizobia and contain a large number of nutrient components, so that the soil fertility can be quickly improved, and the recovery of a coastal ecological system is facilitated.
Description
Technical Field
The invention relates to the technical field of soil treatment, in particular to an ecological restoration method for vegetation in coastal sandy land.
Background
The surface layer of the sand ground is the sand covered and basically vegetation-free land, including desert, and does not include the sandy beach in the water system. The sand land can be divided into sand land and desert and desertification land. The sandy land is mainly distributed in semi-moist areas, and the cause of the sandy land is mostly local soil matrix factors, so the sandy land is mainly distributed in east Huang-Huai-Hai plain and coastal zones. 1667 kilo hectares of sandy land are available in Huang-Huai-Hai plain, and are mainly distributed on both sides of the yellow river and on both banks of the river. Coastal sandy soil is mainly distributed in river delta areas of river people and sea and influence zones thereof. Desert and desertified land, i.e., sandy deserts and sandy desertified land. The cause of the disease is mainly macroscopic geographic and geological factors, so the disease is mainly distributed in northwest areas, inner Mongolia areas, northeast areas and northwest areas of North China of arid and semiarid zones, wind and sand hazard lines of ten thousands of miles are formed, desertification is controlled, and comprehensive measures such as biology, engineering, water conservancy, agriculture and the like are adopted. Firstly, attention is paid to protecting vegetation in desertification areas, and secondly, the plants are planted appropriately according to local conditions, the windproof sand-fixing forest is built, sand is sealed, grass is raised, the ground surface coverage is increased, the ecological environment is improved, and then the sand land industry is developed.
Coastal sandy land is a sensitive ecosystem which is rich in specific plants and is easily interfered. Particularly, in recent decades, with the continuous development of coastal tourism and cultivation development, a plurality of coastal sandy lands are seriously interfered, vegetation is degraded, species are lost, and coast erosion is very common, so that the coastal sandy lands become hidden troubles restricting the safety and sustainable development of areas.
Disclosure of Invention
The invention aims to provide an ecological restoration method for vegetation in coastal sandy land, which effectively combines a plurality of restoration methods such as plant restoration, animal restoration, physical and chemical restoration, soil performance improvement and the like.
In order to achieve the purpose, the invention is realized by the following technical scheme: a method for ecologically restoring vegetation in coastal sandy land comprises the following steps:
s1, windproof measures: planting Arabic trees at the soil connection part around the sand dune, planting the Arabic trees for four circles, alternately planting the Arabic trees in each circle, and covering the sand dune with the Arabic trees;
s2, planting vegetation: covering sand dunes with the grass plants of the lotus corniculatus, the sesbania and the red clover in the S1, planting the lotus corniculatus in one row, planting the sesbania in one row and planting the red clover in one row, and sequentially and circularly planting the three vegetations;
s3, improving the survival rate of vegetation: burying the bottom of the crowtoe, sesbania and red clover planted in S2 in soil, fertilizing and watering in the soil, then covering the soil with a film, covering the film with the soil, and taking off the film after one week.
Further, the method for ecologically remedying vegetation on the coastal sandy land according to claim 1, comprising the following steps: according to the operation procedure in S1, the distance between each circle of Arabic trees is 1-1.5M, and the distance between each circle of Arabic trees is 1-1.5M.
Further, the method for ecologically remedying vegetation on the coastal sandy land according to claim 1, comprising the following steps: according to the operation procedure in S2, the distance between each row of lotus japonicus and each row of sesbania is 0.3-0.6M, and the distance between each row of sesbania and each row of red clover is 0.5-0.8M.
Further, the method for ecologically remedying vegetation on the coastal sandy land according to claim 1, comprising the following steps: according to the operation procedure in S2, the distance between every two hundred vein fern roots is 0.3-0.5M, the distance between every two sesbania roots is 0.5-0.7M, and the distance between every two red clover roots is 0.6-1M.
Further, the method for ecologically remedying vegetation on the coastal sandy land according to claim 1, comprising the following steps: fertilizing according to the required fertilizer of leguminous plants according to the operation steps in S3, wherein the fertilizing amount per meter of soil is 0.1-0.3 KG.
Further, the method for ecologically remedying vegetation on the coastal sandy land according to claim 1, comprising the following steps: three days after the film covering, the film was dug at the root of each plant according to the procedure in S3.
The invention provides an ecological restoration method for vegetation in coastal sandy land. The method has the following beneficial effects:
1. the ecological restoration method for coastal sandy land vegetation has the advantages that the crowtoe, the sesbania and the red clover have good adaptability to coastal sandy land, the sandy land vegetation can be quickly restored by manually sowing the crowtoe, the sesbania and the red clover, the red clover contains flavonoid substances, proteins, amino acids, saccharides, vitamins and other components, the sesbania is an excellent summer green manure crop and can also be used as feed, the plant nutrient content is rich due to strong nitrogen fixation capacity, the soil improvement and yield increase effect is obvious after turning over, particularly in low-lying saline-alkali areas which are easy to waterlog, the crowtoe is resistant to trampling, strong in reproducibility and drought resistance, the crowtoe, the sesbania and the red clover can be compatible with most coastal sandy rural soil plants without any harm, on the contrary, the crowtoe, the sesbania and the red clover can fix nitrogen through rhizobia bacteria and contain a large amount of nutrient components, can quickly improve and fertilize soil and is beneficial to the recovery of a coastal ecosystem.
2. According to the ecological restoration method for the vegetation in the coastal sandy land, the crowtoe, the sesbania and the red clover lack adaptability to storm surge of the coastal sandy land and cannot propagate for a long time in the coastal sandy land, so that the crowtoe, the sesbania and the red clover do not worry about permanently occupying the coastal sandy land and damaging the specific plants and diversity of the coastal sandy land.
3. According to the ecological restoration method for the vegetation in the coastal sandy land, the covering film can well blend water and fertilizer into soil, so that seedlings of crowtoe, sesbania and red clover can stably grow.
Detailed Description
The invention provides a technical scheme that: a method for ecologically restoring vegetation in coastal sandy land comprises the following specific embodiments:
example 1
The method comprises the following steps of:
s1, windproof measures: planting Arabic trees at the soil-contacting position around the sand dune, planting the Arabic trees for four circles, planting the Arabic trees in each circle alternately, covering the sand dune with the Arabic trees, wherein the distance between each circle of Arabic trees and each circle of Arabic trees is 1M, and the distance between each circle of Arabic trees and the Arabic trees is 1M;
s2, planting vegetation: covering sand dunes in the step S1 with paradise, sesbania and red clover, planting paradise in one row, planting sesbania in one row and red clover in one row, sequentially planting three kinds of vegetation in a circulating manner, wherein the distance between each row of paradise and each row of sesbania is 0.3M, the distance between each row of sesbania and each row of red clover is 0.5M, the distance between each row of paradise and each row of sesbania is 0.3M, and the distance between each row of sesbania and each row of red clover is 0.5M;
s3, improving the survival rate of vegetation: burying the bottom of the crowtoe, sesbania and red clover planted in S2 in soil, fertilizing and watering in the soil, then covering the soil with a film, covering the film with the soil, taking the film off after one week, fertilizing according to the fertilizer required by leguminous plants, wherein the fertilizing amount of each meter of soil is 0.1KG, and digging holes on the root of each plant by the film after three days of film covering.
Example 2
S1, windproof measures: planting Arabic trees at the soil-contacting position around the sand dune, planting the Arabic trees for four circles, planting the Arabic trees in each circle alternately, covering the sand dune with the Arabic trees, wherein the distance between each circle of Arabic trees and each circle of Arabic trees is 1.2M, and the distance between each circle of Arabic trees and the Arabic trees is 1.2M;
s2, planting vegetation: covering sand dunes in the step S1 with paradise, sesbania and red clover, planting paradise in one row, planting sesbania in one row and red clover in one row, sequentially planting three kinds of vegetation in a circulating manner, wherein the distance between each row of paradise and each row of sesbania is 0.35M, the distance between each row of sesbania and each row of red clover is 0.65M, the distance between each row of paradise and each row of sesbania is 0.45M, and the distance between each row of sesbania and each row of red clover is 0.65M;
s3, improving the survival rate of vegetation: burying the bottom of the crowtoe, sesbania and red clover planted in S2 in soil, fertilizing and watering in the soil, then covering the soil with a film, covering the film with the soil, taking the film off after one week, fertilizing according to the fertilizer required by leguminous plants, wherein the fertilizing amount of each meter of soil is 0.2KG, and digging holes on the root of each plant by the film after three days of film covering.
Example 3
S1, windproof measures: planting Arabic trees at the soil-contacting position around the sand dune, planting the Arabic trees for four circles, planting the Arabic trees in each circle alternately, covering the sand dune with the Arabic trees, wherein the distance between each circle of Arabic trees and each circle of Arabic trees is 1.5M, and the distance between each circle of Arabic trees and the Arabic trees is 1.5M;
s2, planting vegetation: covering sand dunes in the step S1 with paradise, sesbania and red clover, planting paradise in one row, planting sesbania in one row and red clover in one row, sequentially planting three kinds of vegetation in a circulating manner, wherein the distance between each row of paradise and each row of sesbania is 0.6M, the distance between each row of sesbania and each row of red clover is 0.8M, the distance between each row of paradise and each row of sesbania is 0.6M, and the distance between each row of sesbania and each row of red clover is 0.8M;
s3, improving the survival rate of vegetation: burying the bottom of the crowtoe, sesbania and red clover planted in S2 in soil, fertilizing and watering in the soil, then covering the soil with a film, covering the film with the soil, taking the film off after one week, fertilizing according to the fertilizer required by leguminous plants, wherein the fertilizing amount of each meter of soil is 0.3KG, and digging holes on the root of each plant by the film after three days of film covering.
Samples of each example were taken for assay analysis and compared to the prior art to yield the following data:
from the above table data, it can be concluded that when example 2 is implemented, parameters of 14% nitrogen, 3.8% sulfur and 56% carbon are obtained by the method for ecologically remediating coastal sandy land vegetation according to the present invention.
The invention provides an ecological restoration method for vegetation in coastal sandy land, which comprises the following steps: s1, windproof measures: planting Arabic trees at the positions, adjacent to the soil, around the sand dunes, wherein the Arabic trees are planted in four circles, the Arabic trees in each circle are alternately planted, the Arabic trees cover the sand dunes and can resist strong wind to prevent the wind from blowing sandy soil to other places, the distance between each circle of Arabic trees and each circle of Arabic trees is 1.2M, and the distance between each circle of Arabic trees and the Arabic trees is 1.2M; s2, planting vegetation: the method comprises the steps of covering sand dunes in S1 with paradise, sesbania and red clover, planting paradise in a row, planting sesbania in a row, planting red clover in a row, sequentially planting three kinds of vegetation in a circulating manner, wherein the distance between each row of paradise and each row of sesbania is 0.35M, the distance between each row of sesbania and each row of red clover is 0.65M, the distance between each row of paradise and each row of sesbania is 0.45M, the distance between each row of sesbania and each row of red clover is 0.65M, the paradise, the sesbania and the red clover have good adaptability to coastal sandy land, the rapid recovery of sandy land vegetation can be realized by artificially sowing the paradise, the sesbania and the red clover, the red clover contains ingredients such as substances, proteins, amino acids, saccharides, vitamins and the like, and is an excellent summer green manure crop and can also be used as a feed, and has strong nitrogen fixation capacity and rich nutrient content, the cornus wilsoniana improved soil after being rolled over has a remarkable yield increasing effect, particularly in low-lying saline-alkali areas prone to waterlogging, the cornus wilsoniana is resistant to trampling, strong in reproducibility and drought tolerance, the cornus wilsoniana, the sesbania sessilifolia and the red clover can be compatible and co-located with most coastal sandy rural plants, no harm is caused, on the contrary, the cornus wilsoniana, the sesbania sessilifolia and the red clover can fix nitrogen through rhizobia and contain a large amount of nutrient components, the soil can be quickly improved and fertilized, the restoration of a coastal ecological system is facilitated, the cornus wilsoniana, the sesbania sessilifolia and the red clover lack adaptability to coastal sandy wind storm tides, and the long-term propagation in the coastal sandy land is not caused, so that the cornus wilsoniana, the sesbania sessiliana and the red clover can permanently occupy the coastal sandy land, and do not harm to specific; s3, improving the survival rate of vegetation: burying the bottom of the centella asiatica, the sesbania asiatica and the red clover planted in the S2 with soil, fertilizing and watering in the soil, then covering the soil with a film, covering the film with the soil, taking the film off after one week, fertilizing according to the fertilizer required by the leguminous plants, wherein the fertilizing amount of each meter of soil is 0.2KG, digging holes on the root of each plant by the film after the film covers three days, and blending the water and the fertilizer into the soil by the covering film, so that the seedlings of the centella asiatica, the sesbania asiatica and the red clover can stably grow.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (6)
1. A method for ecologically restoring vegetation in coastal sandy land is characterized by comprising the following steps: the method comprises the following steps of:
s1, windproof measures: planting Arabic trees at the soil connection part around the sand dune, planting the Arabic trees for four circles, alternately planting the Arabic trees in each circle, and covering the sand dune with the Arabic trees;
s2, planting vegetation: covering sand dunes with the grass plants of the lotus corniculatus, the sesbania and the red clover in the S1, planting the lotus corniculatus in one row, planting the sesbania in one row and planting the red clover in one row, and sequentially and circularly planting the three vegetations;
s3, improving the survival rate of vegetation: burying the bottom of the crowtoe, sesbania and red clover planted in S2 in soil, fertilizing and watering in the soil, then covering the soil with a film, covering the film with the soil, and taking off the film after one week.
2. The method for ecologically remedying vegetation on the coastal sandy land, according to claim 1, comprises the following steps: according to the operation procedure in S1, the distance between each circle of Arabic trees is 1-1.5M, and the distance between each circle of Arabic trees is 1-1.5M.
3. The method for ecologically remedying vegetation on the coastal sandy land, according to claim 1, comprises the following steps: according to the operation procedure in S2, the distance between each row of lotus japonicus and each row of sesbania is 0.3-0.6M, and the distance between each row of sesbania and each row of red clover is 0.5-0.8M.
4. The method for ecologically remedying vegetation on the coastal sandy land, according to claim 1, comprises the following steps: according to the operation procedure in S2, the distance between each row of lotus japonicus and each row of sesbania is 0.3-0.6M, and the distance between each row of sesbania and each row of red clover is 0.5-0.8M.
5. The method for ecologically remedying vegetation on the coastal sandy land, according to claim 1, comprises the following steps: fertilizing according to the required fertilizer of leguminous plants according to the operation steps in S3, wherein the fertilizing amount per meter of soil is 0.1-0.3 KG.
6. The method for ecologically remedying vegetation on the coastal sandy land, according to claim 1, comprises the following steps: three days after the film covering, the film was dug at the root of each plant according to the procedure in S3.
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104885752A (en) * | 2015-05-28 | 2015-09-09 | 中国科学院寒区旱区环境与工程研究所 | Dry desert zone sand binder planting method |
CN206294619U (en) * | 2016-12-21 | 2017-07-04 | 中科绿洲(北京)环境咨询有限公司 | A kind of strand sandbank band revegetation system |
CN107278783A (en) * | 2017-08-07 | 2017-10-24 | 亿利首建生态科技有限公司 | A kind of building method of highway shelter-forest |
CN108283105A (en) * | 2016-11-17 | 2018-07-17 | 雷学军 | Cope with the herbal confining method of Global climate change |
CN108476849A (en) * | 2018-03-30 | 2018-09-04 | 广州普邦园林股份有限公司 | A kind of fast construction method of the windproof phytobiocoenose in coastal waters wasteland |
CN108718932A (en) * | 2018-05-08 | 2018-11-02 | 南京林业大学 | A kind of seashore wetland method for recovering vegetation |
CN109757146A (en) * | 2019-03-04 | 2019-05-17 | 厦门万银环境科技有限公司 | A method of the saline and alkaline sand ground zoology green-recovery in beach is carried out using salt-tolerant plant |
-
2019
- 2019-10-21 CN CN201910998401.3A patent/CN110754278A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104885752A (en) * | 2015-05-28 | 2015-09-09 | 中国科学院寒区旱区环境与工程研究所 | Dry desert zone sand binder planting method |
CN108283105A (en) * | 2016-11-17 | 2018-07-17 | 雷学军 | Cope with the herbal confining method of Global climate change |
CN206294619U (en) * | 2016-12-21 | 2017-07-04 | 中科绿洲(北京)环境咨询有限公司 | A kind of strand sandbank band revegetation system |
CN107278783A (en) * | 2017-08-07 | 2017-10-24 | 亿利首建生态科技有限公司 | A kind of building method of highway shelter-forest |
CN108476849A (en) * | 2018-03-30 | 2018-09-04 | 广州普邦园林股份有限公司 | A kind of fast construction method of the windproof phytobiocoenose in coastal waters wasteland |
CN108718932A (en) * | 2018-05-08 | 2018-11-02 | 南京林业大学 | A kind of seashore wetland method for recovering vegetation |
CN109757146A (en) * | 2019-03-04 | 2019-05-17 | 厦门万银环境科技有限公司 | A method of the saline and alkaline sand ground zoology green-recovery in beach is carried out using salt-tolerant plant |
Non-Patent Citations (1)
Title |
---|
王愧三等: "沿海滩涂牧草引种试验初报 ", 《中国农学通报》 * |
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