CN103262689B - Coastal saline-alkali soil terrace type afforesting method for improvement of dredger fill - Google Patents
Coastal saline-alkali soil terrace type afforesting method for improvement of dredger fill Download PDFInfo
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- CN103262689B CN103262689B CN201310200118.4A CN201310200118A CN103262689B CN 103262689 B CN103262689 B CN 103262689B CN 201310200118 A CN201310200118 A CN 201310200118A CN 103262689 B CN103262689 B CN 103262689B
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/40—Afforestation or reforestation
Abstract
The invention discloses a coastal saline-alkali soil terrace type afforesting method for improvement of dredger fill. The coastal saline-alkali soil terrace type afforesting method for improvement of the dredger fill comprises water seepage ditches, foundation terrain dredger fill, straw curtains, geotechnical cloth, improved planting soil, local models and the like, wherein square seepage ditches of the water seepage ditches are longitudinally excavated in the lowest position of the foundation terrain dredger fill, particle-size ballast stones are filled into the square seepage ditches, the distance between the foundation terrain dredger fill and the ground is 1-1.5m, the gradient of the foundation terrain dredger fill is 15 degrees to 30 degrees, straw is distributed on the foundation terrain dredger fill, the geotechnical cloth is laid on the straw curtains, and then the improved planting soil is laid on the geotechnical cloth. Due to the fact that the coastal saline-alkali soil terrace type afforesting method for improvement of the dredger fill is combined with the terrace type shape, the coastal saline-alkali soil terrace type afforesting method for improvement of the dredger fill is beneficial to retaining rainwater, enables salinity to be effectively leached and reduced, is beneficial to fertilizer and soil conservation, and enables the survival rate of landscape plants to be more than 90%, the waste is effectively utilized, natural resources are protected, and afforesting cost is reduced by more than 50%.
Description
Technical field
The invention belongs to landscape engineering technical field, the method for design afforestation, especially relates to the greening method of beach saline land terrace-type barged-in fill improvement.
Background technology
The formation of China's alkaline earth and alkali-affected soil, major part is accumulative relevant with Carbonates In Soil, and thus basicity is general higher, and serious salt affected soil regional plant almost can not be survived.Beach saline land, as one of China's saline land main Types, has the features such as area is wide, areal variation large, improvement difficulty.The particularly greening of the original saline-alkali soil of coastal region and barged-in fill is a difficult problem of long-standing problem port Urban Greening always.Port district greening in the past adopts the mode of strange land soil removal and replacement more, needs to buy a large amount of earthwork from elsewhere, easily there is greening native source anxiety, causes elsewhere ecological disruption, is difficult to disadvantages such as continuing.Coastal saline-alkali soil is owing to being subject to the dipping of seawater for a long time, the neutral salinities such as the sodium chloride in soil, sodium sulphate constantly deposit, and cause marine solonchak to have the physical characteristics such as structure viscous, air capacity of soils is poor, aerobic microorganism activity is poor, nutrients release is slow, osmotic coefficient is low, capillarity is strong.In addition, due to coastal region shortage of water resources, thus cause topsoil salination to aggravate, garden plants is difficult to survive at this, drastically influence beach saline land greening survival rate.
Current coastal saline-alkali area original soil greening method has the reclamation of salinep-alkali soil measure of many maturations, mainly contain (1) physically improved, as ground grading, deep ploughing is suned the earth which has been ploughed up, soil moved in improve the original raises ground, microcell is improved the soil, large cave wholelyly etc., this has certain improved effect for the soil below low water level, salinity moderate, but for high water level area, under the effect of soil capillary, still there will be accumulation of salt in the surface soil phenomenon, cause upper soll layer salinity to gather, occur hardening, plant is difficult to survive; (2) river construction improvement, as supporting in irrigation and drainage, storage fresh water on saline-alkali land for leaching, washing salinity by irrigation, hidden pipe salt discharge etc., although salt discharge successful, the afforestation project cost that drilling and pipe-laying makes increases greatly; (3) chemical modifying, add soil chemistry modifying agent technology, as superphosphate, detritus acid, acid-sludge etc., take effect also fast, but newly-increased chemical substance changes the physicochemical property of original soil, from a long-term perspective, single large area uses chemical improvement agent can increase environmental risk, as the change of edaphon kind; (4) biological modification, as passed through breeding, Selection of Salt-Tolerant plant, although the method is also effective, but the plant after improvement conforms, the time cycle is long, short-term response is slow, and directly selects to plant strong saline alkali tolerant plant, and plant variety is single, common halophytes is as fluffy in alkali, Chinese tamarisk, twocolor sealavander herb etc., be all that herbaceous plant view is not good.
PORT OF TIANJIN adopts barged-in fill to improve greening technique first, the warp formed together with dredger and slush pump marine silt being built by waterpower hydraulic reclamation heap exactly, it is under the prerequisite not changing planting soil, based on draining desalination, realize land improvement, there is fresh-water-saving, save the features such as engineering cost.Efficiently solving while planting technique soil in current PORT OF TIANJIN is becoming tight day, avoid the problem that greening one side destroys again the opposing party's environment, significant to protection of the environment.
Summary of the invention
The object of the invention is to the shortcoming for prior art and deficiency, a kind of local sculpt of beach saline land terrace-type barged-in fill is provided, and the greening method adopting the local sculpt of beach saline land terrace-type barged-in fill to improve.The direct mound of the present invention raises ground, avoiding fluting break ground lay french drain, blind pipe operation, simplify construction technology.Particularly by mixing debirs; improve barged-in fill and substitute as the method for planting soil and use straw curtain the method that tradition quarrel masonry is pouring layer, effectively make use of refuse, protect natural resources; saved greening cost more than 50%, the survival rate of plant is to more than 90%.For achieving the above object, the invention discloses following technology contents:
A local sculpt for beach saline land terrace-type barged-in fill, is characterized in that this local sculpt comprises from bottom to top: infiltration ditch 1, basic geological study barged-in fill 2, straw curtain 3, geotextiles 4, the planting soil 5 after improvement, local sculpt 6, inspection shaft 7; The ditch 1 that wherein seeps water longitudinally excavates the square sewer of 0.5 × 0.5m at basic geological study barged-in fill 2 lowest part, inside fill out particle diameter 10-12cm quarrel stone; Basic geological study barged-in fill 2 to ground height 1-1.5m, the gradient 15 °-30 °, basic geological study barged-in fill is laid the straw curtain 3 of the thick compacting of thickness 20-30cm, the upper berth geotextiles 4 of straw curtain, geotextiles repaves improved planting soil 5, planting soil is built the terraced fields on wide 0.5-1m, bank height 0.5-1.0m, 45 °, bank slope, the high low bank of earth between fields of 0.15-0.2m is set in face, field outer rim, the high low bank of earth between fields of 0.15-0.2m is set along contour interval 4m again, forms the little furrow moulding 6 of 4 × 1m.
After described transformation, planting soil 5 refers to: mix organic barged-in fill, and wherein barged-in fill and organic ratio of weight and number are 1:2.5.Organic ratio of weight and number is: stalk or the peat composed of rotten mosses: mud: desulfurated plaster: acid-sludge 1:1:0.2:0.2 ~ 1:1:0.5:0.5; Described infiltration ditch 1 peak has the gradient of 0.3% to minimum point; Minimum point is connected with greenery patches inspection shaft 7.
The present invention further discloses the greening method of the local sculpt improvement adopting beach saline land terrace-type barged-in fill, it is characterized in that being undertaken by following step:
(1) arrange place, do basic geological study: air-dry barged-in fill is carried out the compacting of layering mound, to ground height 1-1.5m, gradient 15-30 °; Described air-dry barged-in fill refers to: the barged-in fill at rivers or harbour, and soil property is: for sand, sandy loam, total salt quantity are up to 0.8-1.9%, pH value 7-8, water content 12%-15%;
(2) lowest part excavation infiltration ditch at the bottom of slope: toe lowest part longitudinally excavates the square sewer of 0.5 × 0.5m, inside fills out particle diameter 10-12cm quarrel stone, for collecting the water drenched under layer row; Sewer peak to minimum point has the gradient of 0.3%; Minimum point is connected with greenery patches inspection shaft;
(3) to spread straw curtain on basic geological study, infiltration ditch: the straw curtain laying the thick compacting of 20-30cm on basic geological study and infiltration ditch;
(4) the upper berth geotextiles of straw curtain: the upper berth of straw curtain has the geotextiles of anticorrosion water permeability;
(5) the improved barged-in fill in the upper berth of geotextiles: pile after loose air-dry barged-in fill mixes organic matter on the geotextiles completed, soil thickness 1-1.5m; Described organic matter is the stalk or the peat composed of rotten mosses, mud, desulfurated plaster, acid-sludge pulverized, and the ratio of weight and number mixed is stalk or the peat composed of rotten mosses: mud: desulfurated plaster: acid-sludge 1:1:0.2:0.2 ~ 1:1:0.5:0.5;
(6) local sculpt: repair along slope layering whole along contour absolute altitude, build the terraced fields on wide 0.5-1m, bank height 0.5-1m, 45 °, bank slope, the high low bank of earth between fields of 0.15-0.2m is set in face, field outer rim, the high low bank of earth between fields of 0.15-0.2m is set along contour interval 4m again, form the little furrow of 4 × 1m;
(7) retaining washed out soil salinity: utilize natural precipitation or fresh water in rainy season, each little furrow retaining 0.15-0.2m, has oozed under treating nature and poured water, measured soil salt after carrying out three times altogether;
(8) applying organic manure plowed soils: the animal wastes enriching slaking on washed terraced fields cell surface, are 1:1 with the ratio of weight and number of barged-in fill to be improved, then turn over and carry out fertilizing soil, measure soil nutrient index;
(9) ornamental plant is planted on the barged-in fill after improvement: the ornamental plant being planted in slight alkaline land growth.
Organic matter wherein described in step (5) refers to stalk or the peat composed of rotten mosses: mud: desulfurated plaster: acid-sludge 1:1:0.2:0.2 ~ 1:1:0.5:0.5(ratio of weight and number).
The animal wastes enriching slaking described in step of the present invention (8) refer to cow dung or chicken manure.Ornamental plant described in step (9) is Chinese wax, Chinese scholar tree, locust tree, Luan Shu, silk tree, the rose of Sharon, mountain peach.
The more detailed preparation method of the present invention is as follows:
The first step: arrange place, do basic geological study: air-dry barged-in fill is carried out the compacting of layering mound, to ground height 1-1.5m, gradient 15-30 °, object raises ground, lowering of watertable.
Second step: lowest part excavation infiltration ditch at the bottom of slope: toe lowest part longitudinally excavates the square sewer of 0.5 × 0.5m, inside fills out particle diameter 10-12cm quarrel stone (commercial), for collecting the water drenched under layer row; Sewer peak to minimum point has the gradient of 0.3%; Minimum point is connected with greenery patches inspection shaft.Object collects water unnecessary in soil, prevents subterranean water level from rising.
3rd step: to spread straw curtain on basic geological study, infiltration ditch: the straw curtain (commercial) laying the thick compacting of 20-30cm on basic geological study and infiltration ditch, plays a part to isolate, salt discharge water.
4th step: the upper berth geotextiles of straw curtain: the upper berth of straw curtain has the geotextiles (commercial) of anticorrosion water permeability, for isolation implant soil, control soil enters into straw.
5th step: the improved barged-in fill in upper berth of geotextiles: pile after loose air-dry barged-in fill mixes organic matter on the geotextiles completed, soil thickness 1-1.5m.Organic matter is the stalk or the peat composed of rotten mosses (commercial), mud (sewage treatment plant's discarded object), desulfurated plaster (power plant discarded object), acid-sludge (vinegar processing factory waste residue) pulverized, the ratio of weight and number ratio mixing component is 1:1:0.2:0.2 ~ 1:1:0.5:0.5, and object increases the soil water permeability of barged-in fill.
6th step: local sculpt: repair along slope layering whole along contour absolute altitude, build the terraced fields on wide 0.5-1m, bank height 0.5-1m, 45 °, bank slope, in face, field outer rim, the high low bank of earth between fields of 0.15-0.2m is set, along contour interval 4m, the high low bank of earth between fields of 0.15-0.2m is set again, form the little furrow of 4 × 1m, object is convenient to retaining.
7th step: retaining washed out soil salinity: utilize natural precipitation or fresh water in rainy season, each little furrow retaining 0.15-0.2m is high, has oozed and has poured water, measure soil salt after carrying out three times altogether under treating nature.
8th step: applying organic manure plowed soils: the animal wastes enriching slaking on washed terraced fields cell surface, be 1:1 with the ratio of weight and number of the barged-in fill component do not improved, then turn over and carry out fertilizing soil, measure soil nutrient index, after improvement, the soil organic matter all reaches medium level (1.5-3.0%), Soil Available nitrogen rises to the high level of more than 120mg/kg, soil quick-effective phosphor rises to more than 20mg/kg higher level, quick-acting potassium content rises to more than 120mg/kg high level, soil pH is reduced to 7.84-8.25, be applicable to plant growth, object provides the growth substrate with nutrient for plant.
9th step: plant ornamental plant on the barged-in fill after improvement: plantation is adapted at the ornamental plant of slight alkaline land growth, as Chinese wax, Chinese scholar tree, locust tree, Luan Shu, silk tree, the rose of Sharon, mountain peach etc.
The traditional method of coastal saline-alkali greening is: the aggregate measures of building raised fields, periphery laying french drain and hidden pipe, pressure of pouring water salt, applying organic manure, the strong Salt And Alkali Tolerance seeds of plantation.The effectiveness comparison of method of the present invention and traditional method: traditional method concentrates period in rainfall, subterranean water level rises gradually with the increase of rainfall, owing to being shallower than accumulation of salt in the surface soil critical depth, cause french drain and hidden pipe ineffective, the strong salification of soil; Also be applied with a large amount of fertilizer in the barged-in fill of drip washing in traditional method, but owing to not having moulding whole, soil nutrient is walked with water, can not good fertilizer conservation soil conservation; After conventional soil improvement method, be only suitable for the herbal growth of stronger salt tolerant, be not suitable for megaphanerophyte growth, the whole structure of greening cannot be played.
The present invention, in conjunction with terrace-type moulding, is conducive to retaining rainwater, can abundant washed out soil, reduces salinity, solves the problem of beach saline land afforestation freshwater resources deficiency simultaneously; Utilize landform and lay the isolated material such as permeable geotextiles, straw curtain, oozed under soil moisture both can have been made smooth and easy, reach the object of salt discharge, effectively stop basal layer soil salt to rise with capillary water simultaneously, inhibit accumulation of salt in the surface soil phenomenon; By mixing the refuse such as desulfurated plaster in the mud of the sewage treatment plant after the stalk after pulverizing or the peat composed of rotten mosses, compost fermentation, acid-sludge, power plant, add the porosity of barged-in fill, ooze under accelerating moisture, avoid salification phenomenon, effectively reduce the pH value after washing soil simultaneously, add the fertility of soil; By the present invention, ornamental plant can be planted tool appreciation effect and have the plant of salt resistance, as Chinese wax, Chinese scholar tree, locust tree, Luan Shu, silk tree, the rose of Sharon, mountain peach etc., and survival rate more than 90%.
The good effect that beach saline land terrace-type barged-in fill improvement greening method disclosed by the invention is compared with prior art had is:
(1) the present invention is in conjunction with terrace-type moulding, is conducive to retaining rainwater, makes salinity obtain effective drip washing and reduces; Be conducive to fertilizer conservation soil conservation, make ornamental plant survival rate more than 90%.
(2) present invention, avoiding fluting break ground lay french drain, blind pipe operation, simplify construction technology.Particularly by mixing debirs, improveing barged-in fill and substituting as the method for planting soil and use straw curtain the method that tradition quarrel masonry is pouring layer, effectively make use of refuse, protect natural resources, saved greening cost more than 50%.
Accompanying drawing illustrates:
Fig. 1 is the local sculpt structural representation of beach saline land terrace-type barged-in fill;
Fig. 2 is the plane design drawing of the local sculpt of beach saline land terrace-type barged-in fill;
1, seep water ditch (interior filling quarrel stone); 2 basic geological study barged-in fills;
3, straw curtain; 4, geotextiles; 5, the planting soil after improvement; 6, local sculpt; 7, inspection shaft.
Embodiment:
Below in conjunction with specific embodiment, the present invention will be further described, and following each embodiment is not only limitation of the present invention for illustration of the present invention.The animal wastes etc. of used raw material stalk or the peat composed of rotten mosses (commercial), mud (sewage treatment plant's discarded object), desulfurated plaster (power plant discarded object), acid-sludge (vinegar processing factory waste residue), quarrel stone, slaking externally all can have been bought.
Embodiment 1
A local sculpt for beach saline land terrace-type barged-in fill, is characterized in that this local sculpt comprises from bottom to top: infiltration ditch 1, basic geological study barged-in fill 2, straw curtain 3, geotextiles 4, the planting soil 5 after improvement, local sculpt 6, inspection shaft 7; The ditch 1 that wherein seeps water longitudinally excavates the square sewer of 0.5 × 0.5m at basic geological study barged-in fill 2 lowest part, inside fill out particle diameter 10cm quarrel stone; Basic geological study barged-in fill 2 to ground height 1m, the gradient 15 °, basic geological study barged-in fill is laid the straw 3 of the thick compacting of thickness 30cm, the upper berth geotextiles 4 of straw curtain, geotextiles repaves improved planting soil 5, planting soil is built the terraced fields on wide 1m, bank height 1m, 45 °, bank slope, the high low bank of earth between fields of 0.2m is set in face, field outer rim, the high low bank of earth between fields of 0.2m is set along contour interval 4m again, forms the little furrow moulding 6 of 4 × 1m; After described transformation, planting soil 5 refers to: mix organic barged-in fill, and wherein barged-in fill and organic ratio of weight and number are 1:2.5.Organic ratio of weight and number is: stalk or the peat composed of rotten mosses: mud: desulfurated plaster: acid-sludge 1:1:0.2:0.2.Described infiltration ditch 1 peak has the gradient of 0.3% to minimum point; Minimum point is connected with greenery patches inspection shaft 7.
Embodiment 2
A local sculpt for beach saline land terrace-type barged-in fill, is characterized in that this local sculpt comprises from bottom to top: infiltration ditch 1, basic geological study barged-in fill 2, straw curtain 3, geotextiles 4, the planting soil 5 after improvement, local sculpt 6, inspection shaft 7; The ditch 1 that wherein seeps water longitudinally excavates the square sewer of 0.5 × 0.5m at basic geological study barged-in fill 2 lowest part, inside fill out particle diameter 12cm quarrel stone; Basic geological study barged-in fill 2 to ground height 1.5m, the gradient 20 °, basic geological study barged-in fill is laid the straw 3 of the thick compacting of thickness 25cm, the upper berth geotextiles 4 of straw curtain, geotextiles repaves improved planting soil 5, planting soil is built the terraced fields on wide 0.5m, bank height 1.0m, 45 °, bank slope, the high low bank of earth between fields of 0.2m is set in face, field outer rim, the high low bank of earth between fields of 0.2m is set along contour interval 4m again, forms the little furrow moulding 6 of 4 × 1m; After described transformation, planting soil 5 refers to: mix organic barged-in fill, and wherein barged-in fill and organic ratio of weight and number are 1:2.5.Organic ratio of weight and number is: stalk or the peat composed of rotten mosses: mud: desulfurated plaster: acid-sludge 1:1:0.4:0.4; Described infiltration ditch 1 peak has the gradient of 0.3% to minimum point; Minimum point is connected with greenery patches inspection shaft 7.
Embodiment 3
Adopt the greening method of the local sculpt improvement of beach saline land terrace-type barged-in fill, it is characterized in that being undertaken by following step:
(1) arrange place, do basic geological study: air-dry barged-in fill is carried out the compacting of layering mound, to ground height 1m, the gradient 25 °; Described air-dry barged-in fill refers to: the barged-in fill at rivers or harbour, and soil property is: for sand, sandy loam, total salt quantity are up to 0.8-1.9%, pH value 7-8, water content 12%-15%;
(2) lowest part excavation infiltration ditch at the bottom of slope: toe lowest part longitudinally excavates the square sewer of 0.5 × 0.5m, inside fills out particle diameter 10cm quarrel stone, for collecting the water drenched under layer row; Sewer peak to minimum point has the gradient of 0.3%; Minimum point and greenery patches check that 7 wells are connected;
(3) to spread straw curtain on basic geological study, infiltration ditch: the straw curtain laying the thick compacting of 25cm on basic geological study and infiltration ditch;
(4) the upper berth geotextiles of straw curtain: the upper berth of straw curtain has the geotextiles of anticorrosion water permeability;
(5) the improved barged-in fill in the upper berth of geotextiles: pile after loose air-dry barged-in fill mixes organic matter on the geotextiles completed, soil thickness 1.5m; Described organic matter is the stalk or the peat composed of rotten mosses, mud, desulfurated plaster, acid-sludge pulverized, and the ratio of weight and number mixed is: stalk or the peat composed of rotten mosses: mud: desulfurated plaster: acid-sludge 1:1:0.5:0.5;
(6) local sculpt: repair along slope layering whole along contour absolute altitude, build the terraced fields on wide 1m, bank height 0.6m, 45 °, bank slope, arrange the high low bank of earth between fields of 0.15m in face, field outer rim, arrange the high low bank of earth between fields of 0.15m again along contour interval 4m, forms the little furrow of 4 × 1m;
(7) retaining washed out soil salinity: utilize natural precipitation or fresh water in rainy season, each little furrow retaining 0.15m, has oozed under treating nature and poured water, measured soil salt after carrying out three times altogether;
(8) applying organic manure plowed soils: the animal wastes enriching slaking on washed terraced fields cell surface, are 1:1 with barged-in fill component ratio to be improved, then turn over and carry out fertilizing soil, measure soil nutrient index;
(9) ornamental plant is planted on the barged-in fill after improvement: the ornamental plant (such as Chinese wax, Chinese scholar tree, locust tree, Luan Shu, silk tree, the rose of Sharon or mountain peach all can) being planted in slight alkaline land growth.
Embodiment 4
Be positioned at by ecological city transient service district, Cao Fei pasture, Hebei province office building, experiment soil is ooze barged-in fill, and soil property is sandy loam, total salt 1.36%, pH value 7.72.
(1) barged-in fill of water content 12% is carried out the compacting of layering mound, to ground height 1.5m, the gradient 25 °, based on landform;
(2) toe lowest part longitudinally excavates the square sewer of 0.5 × 0.5m, inside fills out particle diameter 10cm quarrel stone; Sewer peak is to minimum point gradient 0.3%, and minimum point is connected with greenery patches inspection shaft;
(3) the straw curtain of the thick compacting of 30cm is laid on basic geological study and infiltration ditch;
(4) upper berth one deck of straw curtain has the geotextiles of anticorrosion water permeability;
(5) by mixed pulverize stalk, mud, desulfurated plaster, acid-sludge hydraulic reclamation mound on straw curtain, soil thickness 1.5m, the ratio of weight and number mixing the component of thing is 1:1:0.25:0.25;
(6) along slope layering wholely, build the terraced fields on wide 1m, bank height 1m, 45 °, bank slope, the low bank of earth between fields of high 0.2 × 0.2m is set in face, field outer rim, the low bank of earth between fields of 0.2 × 0.2m is set along contour interval 4m again, form the little furrow of 4 × 1m;
(7) enter 0.2m height fresh water to each little border irrigation, oozed under treating nature and continued again to pour water, carried out three times altogether;
(8) enrich the animal wastes of slaking on washed terraced fields cell surface in component ratio 1:1, carry out the plants such as plantation Chinese wax, Chinese scholar tree, locust tree, Luan Shu, the silk tree rose of Sharon, mountain peach of turning over, plant survival rate 95%.
The desalination test effect of table 1 chiltern barged-in fill
| Frequency of irrigation index | Initial soil | After 1 time | After 2 water | After 3 water |
| Total salt (%) | 1.36 | 0.917 | 0.544 | 0.238 |
| pH | 7.72 | 7.92 | 8.06 | 8.12 |
Nutrient change before and after the improvement of table 2 sandy loam matter barged-in fill
Embodiment 5
Cost compare
Table 3 cost compare
Embodiment 6
The effect of implantation methods and plant
Conclusion:
(1) retain rainwater by terrace-type moulding, raise under landform accelerates moisture and ooze, finally realize soil salt and obtain effective drip washing, inhibit accumulation of salt in the surface soil phenomenon;
(2) terrace-type moulding, is conducive to soil conservation fertilizer conservation, and plant growing way does very well;
(3) terrace-type is improved the soil the greening method of moulding, and more traditional soil improvement greening mode, plant survival rate improves more than 2 times.
Claims (4)
1. the greening method adopting the local sculpt of beach saline land terrace-type barged-in fill to improve, is characterized in that being undertaken by following step:
(1) arrange place, do basic geological study: air-dry barged-in fill is carried out the compacting of layering mound, to ground height 1-1.5m, gradient 15-30 °; Described air-dry barged-in fill refers to: the barged-in fill at rivers or harbour, and soil property is: be sand, sandy loam, total salt quantity up to 0.8-1.9%, pH value 7-8, water content is 12%-15%;
(2) lowest part excavation infiltration ditch at the bottom of slope: toe lowest part longitudinally excavates the square sewer of 0.5 × 0.5m, inside fills out particle diameter 10-12cm quarrel stone, for collecting the water drenched under layer row; Sewer peak to minimum point has the gradient of 0.3%; Minimum point is connected with greenery patches inspection shaft;
(3) to spread straw curtain on basic geological study, infiltration ditch: the straw curtain laying the thick compacting of 20-30cm on basic geological study and infiltration ditch;
(4) the upper berth geotextiles of straw curtain: the upper berth of straw curtain has the geotextiles of anticorrosion water permeability;
(5) the improved barged-in fill in the upper berth of geotextiles: pile after loose air-dry barged-in fill mixes organic matter on the geotextiles completed, soil thickness 1-1.5m; Described organic matter is the stalk or the peat composed of rotten mosses, mud, desulfurated plaster, acid-sludge pulverized;
(6) local sculpt: repair along slope layering whole along contour absolute altitude, build the terraced fields on wide 0.5-1m, bank height 0.5-1.0m, 45 °, bank slope, the high low bank of earth between fields of 0.15-0.2m is set in face, field outer rim, the high low bank of earth between fields of 0.15-0.2m is set along contour interval 4m again, form the little furrow of 4 × 1m;
(7) retaining washed out soil salinity: utilize natural precipitation or fresh water in rainy season, each little furrow retaining 0.15-0.2m, has oozed under treating nature and poured water, measured soil salt after carrying out three times altogether;
(8) applying organic manure plowed soils: the animal wastes enriching slaking on washed terraced fields cell surface, are 1:1 with hydraulic reclamation local soil type ratio of weight and number to be improved, then turn over and carry out fertilizing soil, measure soil nutrient index;
(9) ornamental plant is planted on the barged-in fill after improvement: the ornamental plant being planted in slight alkaline land growth.
2. greening method according to claim 1, the organic matter wherein described in step (5) refers to stalk or the peat composed of rotten mosses: mud: desulfurated plaster: the ratio of weight and number of acid-sludge is 1:1:0.2:0.2 ~ 1:1:0.5:0.5.
3. greening method according to claim 1, the animal wastes enriching slaking wherein described in step (8) refer to cow dung or chicken manure.
4. greening method according to claim 1, the ornamental plant wherein described in step (9) is Chinese wax, Chinese scholar tree, locust tree, Luan Shu, silk tree, the rose of Sharon, mountain peach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN103430654B (en) * | 2013-09-09 | 2015-10-28 | 天津泰达盐碱地绿化研究中心有限公司 | A kind of method accelerated strand barged-in fill nature desalination speed and promote soil quality |
| CN103548519B (en) * | 2013-10-24 | 2016-01-13 | 华南农业大学 | The revegetation tectosome of discarded metal mine mining site and method for recovering vegetation thereof |
| 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 |
| CN105325225A (en) * | 2014-08-08 | 2016-02-17 | 北京碧青园园林绿化工程有限公司 | Method improving tree plantation survival rate in severe saline-alkali soil |
| CN104429471A (en) * | 2014-11-07 | 2015-03-25 | 南开大学 | Method for planting green plants in saline-alkali soil with fermentation sludge |
| CN106605469A (en) * | 2015-10-26 | 2017-05-03 | 天津港海湾园林绿化有限公司 | Coastal reclamation land ecological restoration and greening method |
| CN105359869B (en) * | 2015-12-01 | 2018-05-25 | 天津泰达绿化集团有限公司 | A kind of interim afforestation equipment of strand hydraulic reclamation geavy salt alkali urban construction backup land low cost |
| JP6773409B2 (en) * | 2015-12-01 | 2020-10-21 | 五洋建設株式会社 | Desalination and improvement methods for cohesive soil |
| CN106068745B (en) * | 2016-06-22 | 2019-03-12 | 盐城工学院 | In conjunction with the bank protecting method and protective slope structure of pasture growing |
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| CN108293831A (en) * | 2017-12-18 | 2018-07-20 | 潍坊友容实业有限公司 | Heavy saline afforestation greening method |
| CN109089829A (en) * | 2018-08-03 | 2018-12-28 | 河南云帮农业科技有限公司 | A kind of mixed-matrix and its method that paves for bletilla striata seeds live streaming |
| CN110521504B (en) * | 2019-08-29 | 2022-01-04 | 中国科学院烟台海岸带研究所 | Method for planting pasture in coastal saline-alkali slope land |
| CN110679226A (en) * | 2019-10-23 | 2020-01-14 | 上海园林绿化建设有限公司 | Construction method combining dredger fill improvement and planting hole improvement |
| CN111133979A (en) * | 2020-01-14 | 2020-05-12 | 上海市园林科学规划研究院 | Method for preparing compost by adopting seaside dredger fill |
| 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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| CN112673744A (en) * | 2021-01-16 | 2021-04-20 | 苏州山河水生态建设有限公司 | Saline-alkali soil greening planting method |
| CN113892316B (en) * | 2021-10-15 | 2022-10-11 | 东营市农业科学研究院 | Saline-alkali soil improvement and treatment system and well forming and slotting method thereof |
| CN115724703A (en) * | 2022-12-05 | 2023-03-03 | 广东中微环保生物科技有限公司 | Reclamation treatment method combining hydraulic reclamation sea mud with garden waste and application |
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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 |
| CN101683033A (en) * | 2009-08-27 | 2010-03-31 | 天津市北方园林生态科学技术研究所 | Method for quickly desalting dredgerfill by using desulfurization gypsum (DSG) |
| CN101731116B (en) * | 2009-11-27 | 2011-11-09 | 辽宁省林业科学研究院 | Repairing method of ecotome sandy coast protection forest afforestation |
| JP5813969B2 (en) * | 2010-03-09 | 2015-11-17 | アップコン株式会社 | Soil improvement method and greening method |
| CN101946573B (en) * | 2010-08-17 | 2012-05-23 | 北京师范大学 | Method for ameliorating saline and alkaline land |
| CN102487620A (en) * | 2011-11-11 | 2012-06-13 | 天津海林园艺环保科技工程有限公司 | Ecological comprehensive treatment technology for coast reclamation dredger fill |
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