CN103004319A - Soil improving method for improvement of subway shield soil and dredged soil and greening of landfill yards - Google Patents
Soil improving method for improvement of subway shield soil and dredged soil and greening of landfill yards Download PDFInfo
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- CN103004319A CN103004319A CN201210551036XA CN201210551036A CN103004319A CN 103004319 A CN103004319 A CN 103004319A CN 201210551036X A CN201210551036X A CN 201210551036XA CN 201210551036 A CN201210551036 A CN 201210551036A CN 103004319 A CN103004319 A CN 103004319A
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Abstract
The invention relates to a soil improving method for improvement of subway shield soil and dredged soil and greening of landfill yards. The method is characterized by comprising the following steps of (1), adding an improver and a microbial inoculant into the soil to improve the soil, wherein the improver contains the following main components of turf, grain and perlite, the inoculant of the microbial inoculant is bacillus megatherium, and a carrier is peat dust; and (2), improving a nitrogen-fixing plant of Lucerne, utilizing the Lucerne which is a legume and has higher biological nitrogen-fixing capability, and sowing the Lucerne on the ground with flattened soil, wherein the sowing amount is 2 to 3g/m<2>, the sowing period is May to August, and plants are ploughed into the soil after autumn. The method is characterized in that the microbial inoculant is inoculated onto a liquid culture medium, and is subjected to shaking culture for 2 to 3 days, a 200ml parent inoculant solution is obtained from each bottle of freeze-drying inoculant (bacillus megatherium), the parent inoculant solution is inoculated into the sterile peat dust with a humidity of 50% to 60%, and 0.5kg peat dust is inoculated into every 10ml of inoculant solution. The method has the advantage that the soil structure and the quality difference of the subway shield soil and the dredged soil are improved, so the growth and the development of the greening plants planted in a sealed area can be met.
Description
Technical field
The present invention relates to a kind of to metro shield is native and barged-in fill is improved and be used for the soil improvement method that landfill yard is afforested.
Background technology
At present in order to improve the refuse landfill sealing local area ecological, carried out refuse landfill sealing zone tree planting kind of a green test, large except facing the sea wind sea fog, soil thickness is thin, seasonal high-temperature drying (high-land in summer, wind is large, the conduction of rubbish fermentation heat), the district's pouring water that closes is in short supply, outside the problems such as closing film (HDPE film) or clay obstruct, because lacking in closing planting soil source, cost high and use in a large number soil structure that metro shield soil and barged-in fill cause and of poor quality be the key that restriction is afforested in the refuse landfill sealing zone, seeing from early stage plantation is in the above afforested generally can't survival and growth.Therefore not solving above-mentioned soil structure and ropy problem just can't allow plant normal growth grow, therefore demand developing the method that can improve for metro shield soil and barged-in fill soil urgently, so that it can improve the soil that becomes for the plantation of refuse landfill sealing Regional Urban Greening, make a large amount of metro shield soil and barged-in fill soil obtain new life.
Summary of the invention
The objective of the invention is to solve soil structure and the problem that can't satisfy the growth of plantation green plants normal growth of poor quality of native at the existing metro shield of large-area closing ecological region planting green plants in the prior art and barged-in fill, provide a kind of to metro shield is native and barged-in fill is improved and be used for the soil improvement method that landfill yard is afforested.The present invention designs a kind of to metro shield is native and barged-in fill is improved and be used for the soil improvement method that landfill yard is afforested, it is characterized in that being comprised of the following step: (1) adds modifying agent in soil and microbial bacterial agent carries out the improvement of soil, the main component of modifying agent is the peat composed of rotten mosses, vinasse, perlite, and the microbial inoculum of described microbial bacterial agent is that bacillus megaterium, carrier are peat dust; (2) nitrogen-fixing plants alfalfa improvement, to utilize alfalfa be leguminous plant, have stronger biological nitrogen fixation ability, the ground upper seeding wheel alfalfa after land smoothing, seeding quantity 2-3g/m
2, in sowing time 5-8 month, plant is ploughed under soil after autumn.It is characterized in that: described microbial bacterial agent is inoculated on the liquid nutrient medium, shaken cultivation 2-3 days, every bottle of freeze-dried vaccine (bacillus megaterium kind) obtains the female bacterium liquid of planting of 200ml, and female bacterium liquid of planting is inoculated in the aseptic peat dust of 50% ~ 60% humidity, every 10ml bacterium liquid inoculation 0.5kg peat dust.Advantage of the present invention is to improve the soil structure of metro shield soil and barged-in fill and of poor quality, enables to be satisfied with growing at the regional green plants of planting that closes.
Embodiment
1, platform construction
Addressing, whole ground, plastic film mulch: select long 38 meters of North and South direction, thing wide 20 meters in the base, area is the rectangle plot of 760 square meters, becomes the plane that exceeds subterranean water level with the smooth compacting of forklift, thereon smooth laying closing film (HDPE film).
Be transported into the earthwork, set for this platform: be transported into rubbish closing soil with truck, do platform with forklift.Specific practice is to be divided into 2 zones by North and South direction on the area of 760 square meters, i.e. the flowering shrub district of the arbor district of 400 square meters, 360 square meters.The arbor district according to the closing film on different soil thickness be divided into 4 parts, be respectively 1.5 meters of soil thickness, 1.2 meters, 0.9 meter and 0.6 meter, every part area 100 square meters.The flowering shrub district according to the closing film on different soil thickness be divided into 3 parts, be respectively 0.6 meter of soil thickness, 0.4 meter and 0.2 meter, every part area 120 square meters.
2, soil melioration technology
(1) soil media adds the microbial bacterial agent improvement
In 0.6 meter (plantation shrub zone, soil thickness are lower than 0.6 meter, press actual (real) thickness and process) plantation soil layer scope, carry out soil melioration in conjunction with platform building.Every 0.6m
3The soil body evenly adds improvement medium 2 bag (0.06m
3/ bag, the main component peat composed of rotten mosses, vinasse, perlite, concrete ratio of mixing can be according to the pH value of the soil of reality and the viscosity adjustment of soil), microbial bacterial agent soil conditioner pulvis 3g(living bacteria count surpass 1.5 hundred million/g).
The microbial bacterial agent soil conditioner: microbial inoculum is that bacillus megaterium, carrier are peat dust.Buy the bacillus megaterium freeze-drying lactobacillus, be inoculated on the autogamy liquid nutrient medium, shaken cultivation 2-3 days, every bottle of freeze-drying lactobacillus obtained the female bacterium liquid of planting of 200ml.Female bacterium liquid of planting is inoculated in the aseptic peat dust of 50% ~ 60% humidity, every 10ml bacterium liquid inoculation 0.5kg peat dust.
(2) nitrogen-fixing plants alfalfa improvement
Alfalfa is leguminous plant, have stronger biological nitrogen fixation ability.At analog platform upper seeding wheel alfalfa, seeding quantity 2-3g/m
2, sowing time 5-8 month.Plant is ploughed under soil after autumn.
3, preferential species of tree is selected technology
According to the environmental condition of Yangtze River Delta strand refuse landfill, in conjunction with seeds ecological characteristics and trial test in early stage result, select 9 kinds of arbors and 12 kinds of flowering shrubs to plant.Arbor is respectively: fragrant camphor tree, glossy privet, Virginia oak, horse chestnut, Chinese tallow tree, Taxodium mucronatum, palm, juniper, cercis, specification are Φ 5-6cm; Shrub is respectively: golden gloomy glossy privet, mosquito mother, sweet-scented oleander, Da Hua gumbo, Da Hua Lindley Butterflybush Herb, safflower Chinese tamarisk, pale reddish brown Malus spectabilis, Hibiscus hamabo, cotton rose, photinia glabra, snow spray flower, cassia corymbosa, specification is H40-100cm, P40-80cm.
Break, dig on request growing area soil into pieces kind of a plant hole after platform is carried out, then plant test plant.
The plantation scheme: 4 parts in arbor district are planted respectively above-mentioned 9 kinds and are supplied the examination arbor species.The requirement thing is embarked on journey, every row plant 1 Plants, plant 10 strains, every part is planted 9 row.4 parts plant altogether 9 kinds, 36 row, 360 strain plants.3 parts in flowering shrub district are planted respectively above-mentioned 12 kinds and are supplied the examination flowering shrub.The requirement thing is embarked on journey, every row plant 1 Plants, plant 20 strains, every part is planted 12 row.3 parts plant altogether 12 kinds, 36 row, 720 strain plants.
4, water-saving drip irrigation technology
For removing the summer high temperature arid to the threat of plant survival, growth, improve simultaneously water use efficiency, the present invention lays drip irrigation system at test platform.Compare with sprinkling irrigation, around plant pit, lay respectively an arrow, adjustable-flow water dropper that tool one goes out four holes.Under hydraulic pressure 0.15Mpa, sprinkling irrigation discharge is every shower nozzle 40L/h, every hole 3L/h of annular dropper, every arrow 2L/h, each 4-6L/h of adjustable-flow water dropper.Summer bright day gas, the maximum air temperature more than 30 ℃ the time, water 4-5 every day, each 10 minutes.Cut-off is irrigated the plant survival rate of processing for 4 kinds and is all reached 100% by the end of August, permeates the uniformity from improving water saving efficiency and moisture soil, and it is better that an arrow and adjustable-flow drip first two drip irrigation form effect.
The summer high temperature arid season, in order to reach the effect of plant pit water conservation, minimizing soil evaporation, the present invention gathers materials on the spot, at 5000m
2Demonstration utilizes on-the-spot weeds of removing to cover plant pit on the ground, and effect is more obvious.
Claims (2)
1. one kind to metro shield soil with barged-in fill is improved and be used for the soil improvement method that landfill yard is afforested, it is characterized in that being comprised of the following step: (1) adds modifying agent in soil and microbial bacterial agent carries out the improvement of soil, the main component of modifying agent is the peat composed of rotten mosses, vinasse, perlite, and the microbial inoculum of described microbial bacterial agent is that bacillus megaterium, carrier are peat dust; (2) nitrogen-fixing plants alfalfa improvement, to utilize alfalfa be leguminous plant, have stronger biological nitrogen fixation ability, the ground upper seeding wheel alfalfa after land smoothing, seeding quantity 2-3g/m
2, in sowing time 5-8 month, plant is ploughed under soil after autumn.
2. by claimed in claim 1 a kind of to metro shield is native and barged-in fill is improved and be used for the soil improvement method that landfill yard is afforested, it is characterized in that: described microbial bacterial agent is inoculated on the liquid nutrient medium, shaken cultivation 2-3 days, every bottle of freeze-dried vaccine (bacillus megaterium kind) obtains the female bacterium liquid of planting of 200ml, female bacterium liquid of planting is inoculated in the aseptic peat dust of 50% ~ 60% humidity, every 10ml bacterium liquid inoculation 0.5kg peat dust.
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| CN201210551036XA CN103004319A (en) | 2012-12-18 | 2012-12-18 | Soil improving method for improvement of subway shield soil and dredged soil and greening of landfill yards |
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| CN201210551036XA CN103004319A (en) | 2012-12-18 | 2012-12-18 | Soil improving method for improvement of subway shield soil and dredged soil and greening of landfill yards |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105503466A (en) * | 2015-12-16 | 2016-04-20 | 江苏盖亚环境工程有限公司 | Soil conditioner suitable for growth of hibiscus cannabinus and preparation method thereof |
| CN105503303A (en) * | 2015-12-16 | 2016-04-20 | 江苏盖亚环境工程有限公司 | Soil conditioner suitable for growth of Madun walnut trees and preparation method thereof |
| CN105532296A (en) * | 2015-12-16 | 2016-05-04 | 江苏盖亚环境工程有限公司 | Soil improvement agent suitable for bletilla striata growth, and preparation method thereof |
| CN105542784A (en) * | 2015-12-16 | 2016-05-04 | 江苏盖亚环境工程有限公司 | Soil conditioner suitable for cornflower growth and preparation method thereof |
| CN105532297A (en) * | 2015-12-16 | 2016-05-04 | 江苏盖亚环境工程有限公司 | Soil improvement agent suitable for bombax tree growth, and preparation method thereof |
| CN105542787A (en) * | 2015-12-16 | 2016-05-04 | 江苏盖亚环境工程有限公司 | Soil conditioner suitable for Cichorium endivia L. growth and preparation method thereof |
| CN105541462A (en) * | 2015-12-16 | 2016-05-04 | 江苏盖亚环境工程有限公司 | Soil conditioner suitable for mioga ginger growth and preparation method thereof |
| CN105542786A (en) * | 2015-12-16 | 2016-05-04 | 江苏盖亚环境工程有限公司 | Soil conditioner suitable for bracketplant growth and preparation method thereof |
| CN105566004A (en) * | 2015-12-16 | 2016-05-11 | 江苏盖亚环境工程有限公司 | Soil conditioner for eucommia growth and preparation method thereof |
| CN108293345A (en) * | 2017-01-12 | 2018-07-20 | 喜施倍全球股份有限公司 | Microbe soil enhances |
| CN109197007A (en) * | 2018-08-10 | 2019-01-15 | 西北师范大学 | Utilize high molecular material-biological material-planting comprehensive improvement sand ground method |
| CN110835211A (en) * | 2019-11-01 | 2020-02-25 | 四川海缘乾豪环保科技有限公司 | Method for treating sludge containing chemical agent |
| CN112552927A (en) * | 2020-12-30 | 2021-03-26 | 威海市五十一号农场股份有限公司 | Improver capable of loosening soil |
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| CN101012380A (en) * | 2007-02-16 | 2007-08-08 | 魏凤巢 | Salination soil modifying agent composition and use thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105503466A (en) * | 2015-12-16 | 2016-04-20 | 江苏盖亚环境工程有限公司 | Soil conditioner suitable for growth of hibiscus cannabinus and preparation method thereof |
| CN105503303A (en) * | 2015-12-16 | 2016-04-20 | 江苏盖亚环境工程有限公司 | Soil conditioner suitable for growth of Madun walnut trees and preparation method thereof |
| CN105532296A (en) * | 2015-12-16 | 2016-05-04 | 江苏盖亚环境工程有限公司 | Soil improvement agent suitable for bletilla striata growth, and preparation method thereof |
| CN105542784A (en) * | 2015-12-16 | 2016-05-04 | 江苏盖亚环境工程有限公司 | Soil conditioner suitable for cornflower growth and preparation method thereof |
| CN105532297A (en) * | 2015-12-16 | 2016-05-04 | 江苏盖亚环境工程有限公司 | Soil improvement agent suitable for bombax tree growth, and preparation method thereof |
| CN105542787A (en) * | 2015-12-16 | 2016-05-04 | 江苏盖亚环境工程有限公司 | Soil conditioner suitable for Cichorium endivia L. growth and preparation method thereof |
| CN105541462A (en) * | 2015-12-16 | 2016-05-04 | 江苏盖亚环境工程有限公司 | Soil conditioner suitable for mioga ginger growth and preparation method thereof |
| CN105542786A (en) * | 2015-12-16 | 2016-05-04 | 江苏盖亚环境工程有限公司 | Soil conditioner suitable for bracketplant growth and preparation method thereof |
| CN105566004A (en) * | 2015-12-16 | 2016-05-11 | 江苏盖亚环境工程有限公司 | Soil conditioner for eucommia growth and preparation method thereof |
| CN108293345A (en) * | 2017-01-12 | 2018-07-20 | 喜施倍全球股份有限公司 | Microbe soil enhances |
| CN109197007A (en) * | 2018-08-10 | 2019-01-15 | 西北师范大学 | Utilize high molecular material-biological material-planting comprehensive improvement sand ground method |
| CN110835211A (en) * | 2019-11-01 | 2020-02-25 | 四川海缘乾豪环保科技有限公司 | Method for treating sludge containing chemical agent |
| CN112552927A (en) * | 2020-12-30 | 2021-03-26 | 威海市五十一号农场股份有限公司 | Improver capable of loosening soil |
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Application publication date: 20130403 |