CN1052846C - Method for converting sea-silt into planation soil - Google Patents
Method for converting sea-silt into planation soil Download PDFInfo
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- CN1052846C CN1052846C CN96100711A CN96100711A CN1052846C CN 1052846 C CN1052846 C CN 1052846C CN 96100711 A CN96100711 A CN 96100711A CN 96100711 A CN96100711 A CN 96100711A CN 1052846 C CN1052846 C CN 1052846C
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Abstract
The present invention relates to a method for converting sea silt into plantation soil, which belongs to a method for improving soil resource. The method has the technical scheme that sea silt treated after hydraulic reclamation, combined hydraulic reclamation, reinforcement and leaching is orderly improved by the following steps: plowing deep, sunning furrows, leveling, cultivating and loosing soil; applying and mixing fertilizer suitable for improving alkaline land with the soil of 0 to 0.30M from a surface layer; planting pioneer plants with salt and alkali resistance; pulling out or turning over and burying the pioneer plants after one or more growth periods; and planting general plants. The method can save a large amount of plantation, solve the problem that coastal areas lack of land resource, and simultaneously improve the ecological environment of the coastal areas. Particularly, the method can make full use of waste.
Description
The invention belongs to a kind of improvement method to Tu Yuan.
Before the present invention realized, because the soil salinization of soil of coastal area is very serious, and the low-lying area, natural pond spread all over, and makes the utilization of this area's land resources be subjected to great restriction.For solving the problem of utilizing of land resources, people take to ruin the mode that fetches earth in the field and make ground, and the shortcoming of this land improvement method is conspicuous, and make ground cost height, and ecotope has been caused great destruction.For overcoming the above problems, have human hydraulic reclamation method that bottom silt is drawn after, in order to fill and lead up the low-lying area, natural pond to satisfy the needs of construction land.For reducing the salinity and the pH value of mud, after people cause land with the hydraulic reclamation method with mud, adopt seawater reinforcing, the modes such as water, drip washing that add to attempt to reduce its saline and alkaline content.But because the compact structure of bottom silt, its saline and alkaline content is difficult for drip washing, so physics and chemical property all can't make plant take root growth.So the soil that adopts this mode to produce can't carry out virescence rebuild as planting soil, more out of the question improves the ecotope of above-mentioned land resources, therefore can not fundamentally solve the problem of above-mentioned regional land resources anxiety.
The purpose of this invention is to provide a kind of is the method that is suitable for the planting soil of plant growing with the bottom silt improvement, thereby has solved aforesaid problem.
Technical scheme of the present invention is:
Adopt low-position vacuum combination hydraulic reclamation reinforcement technique; Be blown into the thick waste soda residue of 0.30m earlier as bed course, utilize the flyash or the alkali factory alkaline residue of power plant to mix according to 1: 3 ratio of weight ratio again with bottom silt, through stirring hydraulic reclamation to bed course, change its physical behavior, it is loosened the space, and its thickness can carry out drip washing then for 1.20m (referring to fixed back), make salt content reduce to 1.0%, change its chemical property.
Add the fertilizer that is applicable to alkaline land improving.As by weight 3-5: 1 ratio is mixed ardealite with sawdust or cow dung mixing fertilizer, its addition are 500-1000Kg/ mu, perhaps add main content and be organic matter, nitrogen, phosphorus, potassium, micro-bio-fertilizer.
Plant the salification plant and secrete the salt plant, these plants can be with in the salinity absorber in the soil, and ripe pulling out again afterwards so just can be reduced the salt content in the soil significantly.Can grow in salt content is higher than 2% soil such as: Suaeda salsa, a large amount of salinities around it can be absorbed in main bodys, soil desalination degree is very high.Plantation salt tolerant degree is all the Chinese tamarisk more than 1.5%, roe hair, twocolor sealavander herb, bluish dogbane etc.Greenery patches crop sesbania, can be in the growth of the saline land of the native salt content 0.6-0.7% of table, utilize its flourishing root system and dense cauline leaf, improve field microclimate, reduce the ground water evaporates, increase fertility of land, the salinity that suppresses soil rises and the promotion desalination, finally makes soil body performance reach the requirement of the general plant of plantation.Above-mentioned kind method for planting can adopt general planting patterns, or the mode of growing a vegetative period of adopting the spring sowing autumn to pull out, and also can pull out after the growth through two or more vegetative period again, then can take full-bloom stage to turn over the method for burying to the sesbania crop.
By above ameliorative measure, salt content is reduced to below 0.2%, after the physical property of the soil body and chemical property reach the requirement of the general plant of plantation, can select a kind of of Qiao, filling, wooden straw or like vegetable or several to plant, as: arbor can be selected Chinese wax, locust tree, torch tree, tree-of-heaven, paulownia, silk tree, Luan Shu, willow, elm etc.Shrub can be planted shrubby flase indigo, false spiraea, yellow thorn plum, the U.S. Malus spectabilis of pearl, the rose of Sharon, Amur honeysuckle.Draft can select planting site by plants such as chrysanthemum, daghestan sweet clover, clover, clover, buffalograss, rice grass, Ben Te, Korea lawn grass.During plantation, the seeding row spacing of arbor class can be 2.50 * 2.50m, and the seeding row spacing of shrub class can be 1.50 * 1.50m, in the draft class, ground is 0.50 * 0.50m by the seeding row spacing of chrysanthemum, suitably decreased distance, to increase planting density, increase face of land coverage rate, press the salt effect to reach.So just can form Qiao, filling, grass, height stratified vegetation straggly can more effectively be improved the physical and chemical performance of soil.
Method of the present invention, with bottom silt as the plantation matrix, by improvement, make it be able to sufficient utilization, be used for desilting pad ground and can reduce the greening cost significantly, save a large amount of arable lands, solved the problem of coastal area land resources anxiety, can improve the ecotope of this area simultaneously.Particularly this improvement method can be a large amount of the waste soda residue that utilizes bottom silt, alkali factory, the power plant flyash of discharging, refuse is fully utilized, thereby can produces huge economic and social benefit.
Embodiment 1:1) adopts low-position vacuum combination hydraulic reclamation reinforcement technique, the salt content of 0.40m soil thickness is reduced to the bottom silt of 1.5% following hydraulic reclamation after drip washing, add the mixing fertilizer that ardealite is mixed with sawdust by weight 1: 3 ratio, its dosage is a 600Kg/ mu, with the table soil of above-mentioned fertilizer and upper soll layer 0-0.3m turn over be mixed even.2) plantation Suaeda salsa, Chinese tamarisk, roe hair, twocolor sealavander herb, bluish dogbane, sesbania.Plant method for planting and can adopt general planting patterns to get final product, and pull out after the growth, then can take to turn over the method for burying at full-bloom stage to the sesbania crop a vegetative period.
Through above method improvement, can plant general plant, arbor selects Chinese wax, locust tree, torch tree, tree-of-heaven, paulownia, silk tree, shrub plantation shrubby flase indigo, false spiraea, yellow thorn plum, the U.S. Malus spectabilis of pearl, draft to select planting site by chrysanthemum, daghestan sweet clover, clover, clover, buffalograss, rice grass.During plantation, the seeding row spacing of arbor class is 2.50 * 2.50m, and the seeding row spacing of shrub class is 1.50 * 1.50m.In the draft class, ground is to be 0.50 * 0.50m by the seeding row spacing of chrysanthemum, and other are decreased distance suitably, to increase planting density.
Embodiment 2:1) adopts low-position vacuum combination hydraulic reclamation reinforcement technique, the salt content of 0.40m soil thickness is reduced to the bottom silt of 1.0% following hydraulic reclamation after drip washing, when the salt content of soil is 0.5% when above, uses its main content and be organic matter, nitrogen, phosphorus, potassium, micro-bio-fertilizer.Its addition is 300Kg/ mu, with the table soil of above-mentioned fertilizer and upper soll layer 0-0.30m turn over be mixed even.2) plantation Suaeda salsa, Chinese tamarisk, roe hair, two look blood grass, bluish dogbane, sesbania.Plant method for planting and adopt general planting patterns to get final product, pull out again after the growth through two vegetative period, then can take to turn over the method for burying at full-bloom stage to the sesbania crop.
Soil behind above method improvement can be planted general plant, and arbor is selected Chinese wax, locust tree, torch tree, tree-of-heaven, paulownia, silk tree, Luan Shu, willow, elm.Shrub plantation shrubby flase indigo, false spiraea, yellow thorn plum, the U.S. Malus spectabilis of pearl, the rose of Sharon, Amur honeysuckle, draft are selected this spy grass, Korea lawn grass, and planting patterns is example as above.
Claims (4)
1. one kind is the method for planting soil with bottom silt improvement, it is characterized in that:
A. adopt low-position vacuum combination hydraulic reclamation reinforcement technique, be blown into the thick waste soda residue of 0.30m earlier as bed course, utilize the flyash of power plant or the alkaline residue of alkali factory to mix according to 1: 3 ratio of weight ratio again with bottom silt, through stirring hydraulic reclamation to bed course, its thickness can be 1.20m (referring to fixed back), carry out drip washing then, salt content is reduced to below 1.0%;
B. add the fertilizer that is applicable to the reclamation of salinep-alkali soil;
C. plant and plant the salification plant and secrete the salt plant, finally make soil body performance reach the requirement of the general plant of plantation.
2. method according to claim 1 is characterized in that described fertilizer is with ardealite and sawdust or cow dung weight ratio 3-5: 1 mix fertilizer, its addition is a 500-1000kg/ mu.
3. method according to claim 1 is characterized in that described fertilizer is the bio-fertilizer of main content for organic matter, nitrogen, phosphorus, potassium, trace element.
4. method according to claim 1 is characterized in that described salification plant and secretes the salt plant being: Suaeda salsa, roe hair, twocolor sealavander herb, Chinese tamarisk, sesbania, bluish dogbane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96100711A CN1052846C (en) | 1996-01-26 | 1996-01-26 | Method for converting sea-silt into planation soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96100711A CN1052846C (en) | 1996-01-26 | 1996-01-26 | Method for converting sea-silt into planation soil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1155371A CN1155371A (en) | 1997-07-30 |
| CN1052846C true CN1052846C (en) | 2000-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96100711A Expired - Lifetime CN1052846C (en) | 1996-01-26 | 1996-01-26 | Method for converting sea-silt into planation soil |
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| CN (1) | CN1052846C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100355511C (en) * | 2004-10-28 | 2007-12-19 | 刘太祥 | Water-saving type salina physics-chemistry-biology comprehensive improvement and vegetation construction technique |
| CN107586224A (en) * | 2017-09-08 | 2018-01-16 | 大连青松智慧生态科技有限公司 | A kind of sludge and alkaline residue mixed method |
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| CN111374020A (en) * | 2020-04-09 | 2020-07-07 | 上海市园林科学规划研究院 | Dredger fill afforestation process method |
| CN112314098B (en) * | 2020-10-30 | 2022-08-12 | 东盛生态科技股份有限公司 | Planting method of stepped protection forest of saline-alkali soil |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87105995A (en) * | 1986-12-29 | 1988-12-21 | 斯托弗化学公司 | The modification method of fine textured soil |
| CN1099548A (en) * | 1993-08-29 | 1995-03-08 | 姚树林 | Method for improving saline-alkali soil |
-
1996
- 1996-01-26 CN CN96100711A patent/CN1052846C/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87105995A (en) * | 1986-12-29 | 1988-12-21 | 斯托弗化学公司 | The modification method of fine textured soil |
| CN1099548A (en) * | 1993-08-29 | 1995-03-08 | 姚树林 | Method for improving saline-alkali soil |
Non-Patent Citations (1)
| Title |
|---|
| 中央农业广播电视学校教材，土壤与肥料第1版 1994.1.7 陆景陵等中国农业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100355511C (en) * | 2004-10-28 | 2007-12-19 | 刘太祥 | Water-saving type salina physics-chemistry-biology comprehensive improvement and vegetation construction technique |
| CN107586224A (en) * | 2017-09-08 | 2018-01-16 | 大连青松智慧生态科技有限公司 | A kind of sludge and alkaline residue mixed method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1155371A (en) | 1997-07-30 |
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Legal Events
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Owner name: TIANJIN CITY COASTAL SALINE ECOSYSTEM GREEN ENGIN Free format text: FORMER OWNER: GARDEN PLANTING CO., TIANJIN ECONOMIC TECHNOLOGY DEVELOPMENT REGION GENERAL CO. Effective date: 20030523 |
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Effective date of registration: 20030523 Address after: No. 26, Ning Ning Road, Tianjin economic and Technological Development Zone Patentee after: Tianjin Seashore Saline-Alkali Soil Biological Planting Engineering Co., Ltd. Address before: Crest economic and Technological Development Zone, Tianjin East Road, No. 6 Patentee before: Garden Planting Co., Tianjin Economic Technology Development Region General Co. |
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| CX01 | Expiry of patent term |
Granted publication date: 20000531 |
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