CN102037806B - Greening method for dredger fill - Google Patents

Greening method for dredger fill Download PDF

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Publication number
CN102037806B
CN102037806B CN201010531509A CN201010531509A CN102037806B CN 102037806 B CN102037806 B CN 102037806B CN 201010531509 A CN201010531509 A CN 201010531509A CN 201010531509 A CN201010531509 A CN 201010531509A CN 102037806 B CN102037806 B CN 102037806B
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soil
blind pipe
fill
greening
barged
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CN102037806A (en
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刘海崇
刘静
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TIANJIN CITY LUYUAN ENVIRONMENTAL LANDSCAPE ENGINEERING Co Ltd
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TIANJIN CITY LUYUAN ENVIRONMENTAL LANDSCAPE ENGINEERING Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture

Abstract

The invention relates to a greening method for dredger fill, which is characterized by comprising the following steps of: reforming a planting zone; paving a percolating layer; paving a blind pipe, paving sand or stove ash on the periphery of the blind pipe, and leading to a drainage sump or a drainage ditch; blending and mixing 1/4 to 1/3 of cow dung or straw with the dredged dredger fill, and refilling; performing irrigating and saline drainage, namely irrigating by flood water to reduce the salinity of soil; and regulating and controlling a microzone, namely dredging a planting cave or a planting ditch, and blending and mixing original soil and river sand, the cow dung and turfy soil in a ratio of 4:2:2:1 to improve the environment of the microzone in which nursery stocks grow and improve the survival rate of the nursery stocks. The greening method has the advantages that: the percolating layer and the blind pipe are paved, and the original soil and the straw or the cow dung are blended and mixed to be refilled so as to improve the voidage and permeability of the dredger fill and provide the possibility for further desalination; the salinity of the soil can be reduced effectively by flood-water irrigating, so that saline water is discharged from the percolating layer and the blind pipe; the regulation and control of the microzone is favorable for desalination and salt restraint, and can provide the environment and nutrient substances which are required by plant growth, so that the survival rate of the nursery stocks is over 90 percent.

Description

The barged-in fill greening method
Technical field
The invention belongs to the beach saline land greening technique, relate in particular to a kind of greening method of beach saline land Vegetation Construction barged-in fill.
Background technology
Barged-in fill is to build new terrestrial soil such as port hydraulic reclamation, beach hydraulic reclamation, salt pan hydraulic reclamation, does not have soil-forming process that the salt content height takes place, all more than 10.0g/kg, quality is sticking heavy, structural poor for general salt content, proportion and unit weight are bigger, and porosity and osmotic coefficient are little, natural salt rejection rate extreme difference.The face of land does not generally have vegetation.Afforest on the barged-in fill that not even a blade of grass grows is " global problem " of generally acknowledging in the world always.About the research report of barged-in fill, concentrate on mostly and how to find a kind of more reasonable, more economical reinforcement technique at present, make barged-in fill change ground into from the mud state as soon as possible with certain bearing capacity; The trade wastes such as plant adaptability, alkaline residue and flyash that whether can be used as agriculture soil, saliferous dredging mud about barged-in fill also have relevant report to the aspects such as study on the modification of hydraulic fill sea mud, but these researchs also mainly rest on experimental stage, for also rare the relating to of report of the concrete greening technique aspect of barged-in fill.The existing greening modes that adopt the strange land soil removal and replacement need be bought a large amount of farmlands soil from other places more, have the problem of the native source of greening anxiety, in addition, also cause the ecological disruption of native seedbed easily, cause natural calamity.Therefore, the soil moved in to improve the original greening method does not meet STRATEGIES OF SUSTAINABLE DEVELOPMENT, presses for a kind of original soil improvement greening method, changes current barged-in fill soil moved in to improve the original afforestation mode, reduces environmental disruption, walks the road of green sustainable development.
Summary of the invention
The present invention is in order to overcome deficiency of the prior art, a kind of greening method of barged-in fill is provided, at barged-in fill salt content height, quality sticking heavy, structure is poor, porosity and osmotic coefficient are little, natural salt rejection rate is extremely low, the greening difficulty, problems such as existing greening method is unsustainable propose to utilize the growing area transformation, and the technology such as the desalinization of soil by flooding or leaching, microcell regulation and control of irrigating reduce soil salt content, improve voidage, suppress the anti-salt of soil, improve plant percent, reach the purpose of the efficient greening of original soil.
The present invention is achieved through the following technical solutions for achieving the above object, and a kind of greening method of barged-in fill is characterized in that: concrete steps are as follows,
One, growing area transformation
In the zone of preparing greening barged-in fill is dug out, lay filter layer, diafiltration layer depth 1m~1.2m, thickness is 15~20cm, the gradient is greater than one thousandth; Lay blind pipe, every 30 meters blind pipe ditches that dig wide 0.3~0.4m, the gradient is laid sand or ashes greater than 3/1000ths around the blind pipe internal diameter 8~15cm, blind pipe, leads to sump or drain ditch; The barged-in fill that digs out mixes 1/4~1/3 cow dung or stalk backfill;
Two, the salt discharge of pouring water
After the growing area transformation was finished, big flood was irrigated, and irrigation quantity 120~150 side/mus reduce soil salt content;
Three, microcell regulation and control
According to the difference of nursery stock, dig kind of plant hole or plantation ditch, arbor generally digs dark 60~80cm, and the general 30~40cm of shrub is after original soil digs out, at bottom shop one deck river sand or gravel, the degree of depth 5~10cm; Again original soil and river sand, cow dung, turfy soil are mixed backfill in the ratio of 4:2:2:1, improve the microcell environment of seedling growth, improve plant percent.
Beneficial effect: barged-in fill salt content height, quality sticking heavy, structure is poor, porosity and osmotic coefficient are little, the nature salt rejection rate is extremely low, the greening difficulty, but through laying filter layer and blind pipe, and after original soil and stalk or cow dung mixed backfill, barged-in fill voidage and permeability have been improved, for further desalination provides possibility; Big flood is irrigated can effectively lower soil salt content, and salt solution is got rid of through filter layer and blind pipe; The microcell regulation and control not only help desalination and press down salt, and required environment of plant growing and nutriment can be provided, and plant percent is reached more than 90%.
Embodiment
Below in conjunction with preferred embodiment, to details are as follows according to embodiment provided by the invention:
Embodiment 1
A kind of greening method of barged-in fill, concrete steps are as follows,
One, growing area transformation
In the zone of preparing greening barged-in fill is dug out, lay filter layer, diafiltration layer depth 1m, thickness is 15cm, the gradient is greater than one thousandth; Lay blind pipe, every 30 meters blind pipe ditches that dig wide 0.3m, the gradient is laid sand or ashes greater than 3/1000ths around the blind pipe internal diameter 8cm, blind pipe, leads to sump or drain ditch; The barged-in fill that digs out mixes 1/4 cow dung or stalk backfill;
Two, the salt discharge of pouring water
After the growing area transformation was finished, big flood was irrigated, and irrigation quantity 120 side/mus reduce soil salt content;
Three, microcell regulation and control
According to the difference of nursery stock, dig kind of plant hole or plantation ditch, arbor generally digs dark 60cm, and the general 30cm of shrub is after original soil digs out, at bottom shop one deck river sand or gravel, degree of depth 5cm; Again original soil and river sand, cow dung, turfy soil are mixed backfill in the ratio of 4:2:2:1.
Embodiment 2
A kind of greening method of barged-in fill, concrete steps are as follows,
One, growing area transformation
In the zone of preparing greening barged-in fill is dug out, lay filter layer, diafiltration layer depth 1.2m, thickness is 20cm, the gradient is greater than one thousandth; Lay blind pipe, every 30 meters blind pipe ditches that dig wide 0.4m, the gradient is laid sand or ashes greater than 3/1000ths around the blind pipe internal diameter 15cm, blind pipe, leads to sump or drain ditch; The barged-in fill that digs out mixes 1/3 cow dung or stalk backfill;
Two, the salt discharge of pouring water
After the growing area transformation was finished, big flood was irrigated, and irrigation quantity 150 side/mus reduce soil salt content;
Three, microcell regulation and control
According to the difference of nursery stock, dig kind of plant hole or plantation ditch, arbor generally digs dark 80cm, and the general 40cm of shrub is after original soil digs out, at bottom shop one deck river sand or gravel, degree of depth 10cm; Again original soil and river sand, cow dung, turfy soil are mixed backfill in the ratio of 4:2:2:1.
Embodiment 3
A kind of greening method of barged-in fill, concrete steps are as follows,
One, growing area transformation
In the zone of preparing greening barged-in fill is dug out, lay filter layer, diafiltration layer depth 1.2m, thickness is 18cm, the gradient is greater than one thousandth; Lay blind pipe, every 30 meters blind pipe ditches that dig wide 0.3m, the gradient is laid sand or ashes greater than 3/1000ths around the blind pipe internal diameter 10cm, blind pipe, leads to sump or drain ditch; The barged-in fill that digs out mixes 1/4 cow dung or stalk backfill;
Two, the salt discharge of pouring water
After the growing area transformation was finished, big flood was irrigated, and irrigation quantity 140 side/mus reduce soil salt content;
Three, microcell regulation and control
According to the difference of nursery stock, dig kind of plant hole or plantation ditch, arbor generally digs dark 70cm, and the general 40cm of shrub is after original soil digs out, at bottom shop one deck river sand or gravel, degree of depth 8cm; Again original soil and river sand, cow dung, turfy soil are mixed backfill in the ratio of 4:2:2:1, improve the microcell environment of seedling growth, improve plant percent.
Experimental example
Basic condition:Time: in May, 2009, the place: in the development zone, Tianjin, 20,000 square metres of areas, soil salt content 4.7%, pH value 8.5, plantation nursery stock Chinese wax, Chinese scholar tree.
Effect:The Chinese wax survival rate 92% then, and Chinese scholar tree is more than 90%, 1 year nursery stock normal growth.
The above only is preferred embodiment of the present invention, is not structure of the present invention is done any pro forma restriction.Every foundation technical spirit of the present invention all still belongs in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.

Claims (1)

1. barged-in fill greening method, it is characterized in that: concrete steps are as follows,
One, growing area transformation
In the zone of preparing greening barged-in fill is dug out, lay filter layer, diafiltration layer depth 1m~1.2m, thickness is 15~20cm, the gradient is greater than one thousandth; Lay blind pipe, every 30 meters blind pipe ditches that dig wide 0.3~0.4m, the gradient is laid sand or ashes around the blind pipe internal diameter 8~15cm, blind pipe, and is led to sump or drain ditch greater than 3/1000ths; The barged-in fill that digs out mixes 1/4~1/3 cow dung or stalk backfill;
Two, the salt discharge of pouring water
After the growing area transformation was finished, big flood was irrigated, and irrigation quantity 120~150 side/mus reduce soil salt content;
Three, microcell regulation and control
According to the difference of nursery stock, dig kind of plant hole or plantation ditch, the degree of depth of digging kind of plant hole or plantation ditch: arbor is 60~80cm, and shrub is 30~40cm; After original soil digs out, at bottom shop one deck river sand or gravel, the degree of depth 5~10cm; Again with original soil and river sand, cow dung, turfy soil in 4: 2: 2: 1 ratio mixes backfill, improves the microcell environment of seedling growth, improves plant percent.
CN201010531509A 2010-11-04 2010-11-04 Greening method for dredger fill Active CN102037806B (en)

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Families Citing this family (17)

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Publication number Priority date Publication date Assignee Title
CN102511253A (en) * 2011-10-28 2012-06-27 熊唯嘉 Plant root guiding and controlling device and filler thereof
CN102498772A (en) * 2011-11-07 2012-06-20 天津市北方园林生态科学技术研究所 Method for in-situ improvement of dredger fill into soil for planting
CN104642052A (en) * 2013-11-20 2015-05-27 天津港海湾园林绿化有限公司 Chinese tamarisk transplanting planting technology at dredger fill original soil area
CN104652365A (en) * 2013-11-20 2015-05-27 天津港海湾园林绿化有限公司 Muddy tidal flats fast afforestation technology for land reclamation epeirogenic area
CN104718834A (en) * 2013-12-18 2015-06-24 天津港海湾园林绿化有限公司 Cutting planting technology for tamarix chinensis in dredger fill original soil area
CN104094693B (en) * 2014-06-24 2016-02-24 天津泰达绿化集团有限公司 A kind of greening method of beach saline land staged control salt discharge
CN106105462A (en) * 2016-06-30 2016-11-16 山东胜伟园林科技有限公司 A kind of root control salt method using haydite filter layer and the application in salt-soda soil Melia azedarach L. is planted thereof
CN106105460A (en) * 2016-06-30 2016-11-16 山东胜伟园林科技有限公司 A kind of root control salt method using kieselguhr filter layer and the application in salt-soda soil Chinese small iris is planted thereof
CN106105461A (en) * 2016-06-30 2016-11-16 山东胜伟园林科技有限公司 A kind of root control salt method using rice straw biomass carbon filter layer and the application in salt-soda soil Fructus Kochiae is planted thereof
CN106134559A (en) * 2016-06-30 2016-11-23 山东胜伟园林科技有限公司 A kind of root control salt method using shell filter layer and the application in salt-soda soil midget crabapple is planted thereof
CN106105463A (en) * 2016-06-30 2016-11-16 山东胜伟园林科技有限公司 A kind of root control salt method using Maifanitum filter layer and the application in salt-soda soil alta fascue is planted thereof
CN106134558A (en) * 2016-06-30 2016-11-23 山东胜伟园林科技有限公司 A kind of root control salt method using bagasse filter layer and the application in salt-soda soil Herba Scutellariae Barbatae is planted thereof
CN106165566A (en) * 2016-06-30 2016-11-30 山东胜伟园林科技有限公司 A kind of root control salt method using zeolite filter layer and the application in salt-soda soil winged euonymus is planted thereof
CN106134709A (en) * 2016-06-30 2016-11-23 山东胜伟园林科技有限公司 A kind of root control salt method using phragmites communis charcoal filter layer and the application in salt-soda soil Fructus Corni is planted thereof
CN109006146A (en) * 2018-08-24 2018-12-18 江苏省农业科学院 A kind of pecan grove mellow soil remodeling method
CN110771291B (en) * 2019-11-05 2022-01-28 河海大学 Covering layer partitioning method for improving leaching and salt discharging efficiency
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

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