CN102696300A - Method for water seepage, salt discharge and afforestation of low-humidity saline and alkaline beach and application of method - Google Patents
Method for water seepage, salt discharge and afforestation of low-humidity saline and alkaline beach and application of method Download PDFInfo
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- CN102696300A CN102696300A CN2012102027300A CN201210202730A CN102696300A CN 102696300 A CN102696300 A CN 102696300A CN 2012102027300 A CN2012102027300 A CN 2012102027300A CN 201210202730 A CN201210202730 A CN 201210202730A CN 102696300 A CN102696300 A CN 102696300A
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- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
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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 provides a method for water seepage, salt discharge and afforestation of a low-humidity saline and alkaline beach. The method comprises the following steps of: (1) performing landscape micro-terrain modeling finishing on a saline and alkaline land parcel to be governed to form orographic uplift afforestation areas and low-lying water catchment and salt discharge areas, and excavating drainage ditches in a direction from high to low; (2) turning over the earth surface; (3) excavating flexible water seepage and salt discharge tape burying ditches; (4) arranging flexible water seepage and salt discharge tapes at the bottoms of the ditches; (5) forming intersected water barrier ridges; (6) adding an organic fertilizer, and plowing and harrowing a surface layer; (7) arranging integrated flexible salt discharge and air permeation shafts; and (8) cultivating and sowing saline-alkali-resistant arbor-shrub-grass plants on saline and alkaline land which is comprehensively governed and improved. A set of feasible comprehensive technical method is provided for the comprehensive governance and afforestation of saline and alkaline land in large areas; and the method is favorable for improving the afforestation effect and level of saline and alkaline areas.
Description
Technical field
The invention belongs to desertification control and ecotope and repair field, particularly a kind of saline and alkali land improvement method and application thereof.
Background technology
Low humidity saline land, particularly beach saline land subterranean water level and salt content are high, because the top layer has accumulated a large amount of salinities; Soil physical property worsens; Structure viscous, the consolidation that hardens, air capacity of soils is poor, osmotic coefficient is low, capillarity is strong, aerobic type microbial activity is poor in the soil, more causes the saliferous aggravation of topsoil, is unfavorable for even suitable growth and development of plants; For artificial constructed vegetation, ubiquity physiological drought, the death of burning.For many years to the improvement and the improvement in saline land; Follow mostly " salt with water come, salt goes with water " the natural law, carry out necessary draining desalinization of soil by flooding or leaching measure, in conjunction with methods such as biological modification, chemical modifyings; Received good effect; But because China's freshwater resources are deficient, large-area washing salinity by irrigation is unrealistic, and easily repeatedly.In addition, the saline alkali land drainage measure cost of constructing system is higher, take gutter drainage that fragmentation is cut apart in saline and alkaline plot, and the open drain is too much, and the stifled phenomenon of collapsing is difficult to avoid.Light and shade combines in the drainage pattern, and hidden pipe use no sand cement pipe, plain concrete pipe, pvc pipe, soft bourdon tube etc., and wherein using maximum is no sand cement pipe, and it is better that the alkali effect is arranged in its salt discharge, but easy fragmentation, cost are higher.Other tubing need operations such as sand-gravel cushion and filtrate parcel mostly, and operation is more, drops into bigger.To the many difficult problems that exist in the above salt-alkali shoaly land improvement, a kind of method of using salt-alkali shoaly land infiltration salt discharge and afforestation has been proposed.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of low humidity salt-alkali shoaly land infiltration salt discharge and afforestation method.
In order to realize the object of the invention, a kind of low humidity salt-alkali shoaly land infiltration salt discharge of the present invention and afforestation method, it specifically may further comprise the steps:
(1) on saline and alkaline plot to be administered according to landscape planning and later-stage utilization direction, take low dig the mode that height fills out and carry out the moulding of view mima type microrelief, form orographic uplift green belt and low-lying charge for remittance salt discharge district, and according to by height to low direction excavation drain ditch;
Said spacing of drainage ditches is preferably 20-40m, and the degree of depth is 1-1.5m from the face of land.
(2), the top layer, plot behind the excavation drain ditch turns over after adding fertilizer;
Said fertilizer is preferably acid fertilizer; Ploughing depth is preferably 20-40cm, turns over and can organic manure be translated into the bottom.
(3) in the plot after turning over, evenly excavate flexible infiltration salt discharge band perpendicular to the drain ditch and bury ditch underground;
Said infiltration salt discharge band is buried ditch underground, preferably, furrow width 40-50cm, ditch depth 40-60cm, ditch spacing 4-10m, the bottom of trench longitudinal gradient compares 0.8-1%.
(4) the flexibility salt discharge band that seeps water is placed bottom of trench, communicate with the drain ditch is vertical, the earth excavation backfill; Said flexible infiltration salt discharge band is laid floor map, and is as shown in Figure 1.
For the plot of spacing of drainage ditches greater than 20m, infiltration salt discharge band can be taked " people " font paving mode, permeates draining by the centre to both sides, at the bottom of the hillside ditch longitudinal gradient than 0.8-1%, as shown in Figure 6.
Said flexible infiltration salt discharge band, as shown in Figure 2, it is " bamboo raft " type bag that is formed by connecting the lattice chamber more than 1, said lattice chamber is the netted bag of being processed by the non-degradable fabric.
Preferably, said lattice chamber is the 1-4 group, and each lattice chamber width is 7.85-15.7cm.More preferably, the lattice chamber is 3 groups, and each lattice chamber width is 15.7cm.
Preferably, said " bamboo raft " type bag adopts whole block material to process, and bag is long to be 3-5m.Said non-degradable fabric is the PP type fibrous material, like in PP type fiber, Fypro or the nylon fibre one or more.The mesh size of bag guarantees that filler can not spill.
Be filled with the volcanic rock, rubble of the mixing particle diameter of particle diameter 1-5cm in said " bamboo raft " type bag bag or through one or more fillers in the building waste of the mixing particle diameter of cracking and sorting; Be preferably the volcanic rock of the mixing particle diameter of 1-5cm; Filler accounts for the 85-95% of bag volume, and more preferably 90%; Filling the back width is 5-40cm, and thickness is 5-10cm.
(5) on the plot of reincarnate, be provided with in length and breadth block the water furrow ridge;
The said water furrow ridge of blocking can retain natural rainfall, behind 3-5 heavy rain of process, the salinity in the thin solum is got rid of through the permeable band of salt discharge, drain ditch with the rainwater leaching.Limited like no rain of sky drought and duration, easily under the condition, the mode that can adopt manual work to water is watered the desalinization of soil by flooding or leaching, waters permeable 2-3 time at water source of fresh water.1-5 should carry out before expectation, makes full use of natural rainfall and carries out the desalinization of soil by flooding or leaching, practices thrift limited freshwater resources.
(6) after the step (5), add organic manure once more, and carry out the top layer and plough rake, make topsoil and fertilizer evenly mix;
(7) after the step (6), on the plot, lay the ventilative vertical shaft of the flexible salt discharge of integral type, strengthen the whole permeable effect of salt discharge in plot;
As shown in Figure 3, the ventilative vertical shaft of the flexible salt discharge of said integral type is to process cylindrical netted bag with the non-degradable fabric, and the diameter of said bag is preferably 2-10cm, and length is preferably 0.5-1m; Be filled with one or more fillers in mixing particle diameter volcanic rock, rubble or the building waste of particle diameter 1-5cm in the bag; Said filler accounts for the 85-95% of bag volume.Lay requirement, waiting to administer every 0.5-2m in the saline land
2Beat the circular hole on the vertical face of land, the ventilative vertical shaft diameter of the flexible salt discharge of the aperture and the degree of depth and integral type is suitable with length, the ventilative vertical shaft of the flexible salt discharge of integral type is implanted get final product.The greening that also can combine to plant is laid, and in the planting hole periphery or the zone of planting, lays the ventilative vertical shaft of the flexible salt discharge of integral type, and its diameter and length can be confirmed according to practical situations and cost flexibly.Said non-degradable fabric is a kind of in PP type fiber, Fypro or the nylon fibre.
(8), on the saline land of the comprehensive regulation and improvement, planting, sowing the careless plant of the tall filling of salt tolerant alkali according to the afforestation requirement.
Said salt tolerant alkali is tall irritates careless plant optimization and be: middle mountain China fir, swamp cypress, Luan Shu, Chinese wax, ligustrum lucidum ait, dry land willow, Chinese tamarisk, pagatpat, horsetail beefwood, shrubby flase indigo, the sea ice rose of Sharon, alkali are fluffy, in alkali cogongrass or the Chinese small iris one or more.
After the said step (6), step (7) also comprises the good green manure crop of one season of plantation salt tolerant alkali before.
The present invention also provides the application of said method in administering the low humidity salt-alkali shoaly land.
Beneficial effect of the present invention:
Need not ditch and do the tableland, mustn't replace planting soil, can guarantee the normal development growth of greening seedling, avoid causing new destruction because of saline land displacement planting soil; The saline land infiltration salt discharge expense of new technology reduces nearly more than 30% than traditional measures expense; Practice thrift the diafiltration material more than 60%, avoided rubble filtrate job site short distance a dead lift and backfill, efficiency of construction improves nearly 2 times; In the method packing material can be used through the building waste of cracking and sorting and substitute, newly warded off building waste new utilize approach; Flexible infiltration salt discharge band has the advantage of entire body infiltration draining, has improved infiltration salt discharge efficiency greatly; The ventilative vertical shaft of the flexible salt discharge of integral type has the inhomogeneous modification performance of good reply, infiltration, salt discharge, permeability stable and durable; For the comprehensive regulation of large tracts of land saline land and greening provide a cover feasible complex art method, help improving saline and alkaline regional afforestation effect and level; Through the saline and alkaline soil behind the comprehensive reformation, the green plants kind of suitable growth is more, has improved saline-alkali soil forestation green plants kind present situation on the low side; Through reasonable arrangement working procedure, make full use of and carry out the desalinization of soil by flooding or leaching rainy season, practice thrift freshwater resources in short supply greatly; Rationally arrange to plant the time, planting before, plant one season the saline land green manure crop, can effectively improve saline and alkaline soil fertility level and physicochemical property.
Description of drawings
Fig. 1 is that flexible infiltration salt discharge band is laid floor map.
Fig. 2 is the structural representation of flexible infiltration salt discharge band.
Fig. 3 A is that sketch map is laid on integral type infiltration salt discharge vertical shaft and well plane, and wherein, circular hole is the vertical shaft cross section; Fig. 3 B is infiltration salt discharge vertical shaft.
Fig. 4 is that laying closed drainage schematic cross-sectional view is administered in traditional saline land, and wherein, middle circular diagram is the closed drainage cross-sectional view.
Fig. 5 lays flexible infiltration salt discharge band schematic cross-sectional view for new departure, and wherein, middle 3 circular diagrams are the flexible infiltration of the present invention salt discharge band cross-sectional view.
Fig. 6 is that side schematic view laid in flexible infiltration salt discharge band " people " font.
Fig. 7 is that the intensive infiltration salt discharge of shallow-layer band is laid schematic cross-sectional view, and wherein, label 11 is the flexible infiltration of the present invention salt discharge band cross-sectional view.
Fig. 8 is the greening seedling sketch map of planting.
Fig. 9 forms a team to plant for shrub and distinguishes the miniature vertical shaft laying of integral type infiltration salt discharge sketch map.
Figure 10 plants for arbor and the miniature vertical shaft of integral type infiltration salt discharge is laid sketch map.
Wherein, 1 is flexible infiltration salt discharge band; 2 are the miniature vertical shaft of integral type infiltration salt discharge; 3 is the drain ditch; 4 bury ditch underground for hidden pipe; 5 is hidden pipe; 6 is that flexible infiltration salt discharge band is buried ditch underground; 7 is flexible infiltration salt discharge band; 8 is that " people " font is laid flexible infiltration salt discharge band; 9 is the flexible infiltration of single form salt discharge band; 10 is the arbor planting hole; 11 are the shrub district of planting; 12 is the shrub of planting.
Embodiment
Following examples are used to explain the present invention, but are not used for limiting scope of the present invention.Under the situation that does not deviate from the present invention's spirit and essence, modification or replacement to the inventive method, step or condition are done all belong to protection scope of the present invention.
If do not specialize the conventional means that used technological means is well known to those skilled in the art among the embodiment.
Referring to Fig. 1 and Fig. 4.
1, on saline and alkaline plot to be administered according to by height to low direction excavation drain ditch 3, lay according to landform in drain ditch 3, is convenient to draining.Drain ditch 3 spacing 20m, the degree of depth is 1m from the face of land.
2, the top layer, plot behind excavation drain ditch 3 covers farm animal excrement compost (10m
3/ mu), machinery is turned over, and ploughing depth 30cm translates into the bottom with organic manure.
3, in the plot after turning over, evenly excavate hidden pipe perpendicular to the drain ditch and bury ditch 4 underground, furrow width 40cm, ditch depth 40cm, ditch spacing 5m, the bottom of trench longitudinal gradient is than 0.8%.
4, bottom of trench adopts the 5cm blotter, adopts the boring pvc pipe to be laid on the bed course in hidden pipe 5, filtrate wrapped row water pipe, and the backfill rubble is buried drainpipe, the backfill earth excavation.
Compare with tradition improvement method, new method is buried bottom of trench underground at the hidden pipe of excavation and is laid flexible infiltration salt discharge band, and the backfill earth excavation gets final product.Flexible infiltration salt discharge band 1 is made up of 3 groups of lattice chambers, and each flat width in lattice chamber is 7.85cm, long 5m, and the mixing particle diameter rubble of the interior filling of bag particle diameter 2-3cm, filler accounts for 85% of bag volume.
Compare with tradition improvement method; New method has reduced operations such as trench digging back blotter, filtrate parcel, practices thrift the diafiltration material more than 60%, has avoided rubble filtrate job site short distance a dead lift and backfill; Efficiency of construction improves nearly 2 times, and comprehensive regulation expense reduces more than 30%.Simultaneously, the flexibility infiltration salt discharge band that new method adopts has entire body infiltration draining advantage, has improved infiltration salt discharge efficiency greatly.
1, in saline land bonded physical relief to be administered, according to landscape planning and greenbelt construction requirements, take the low view mima type microrelief sculpting method that height is filled out that digs, form the low-lying water catchment area of 3 draining salt discharges, gathering ground accounts for 12.7% of total improvement area.According to by height to low direction excavation drain ditch, and lead to low-lying water catchment area, be convenient to draining.Drain ditch 3 spacing 40m, the degree of depth is 1.2m from the face of land.
2, the top layer, plot behind the excavation drain ditch covers farm animal excrement compost (10m
3/ mu) back machinery is turned over, and ploughing depth 20cm translates into the bottom with organic manure.
3, in the plot after turning over, evenly excavate flexible infiltration salt discharge band perpendicular to drain ditch 3 and bury ditch underground, furrow width 40cm, ditch depth 40cm, ditch spacing 6m.
4, the flexibility salt discharge band that seeps water is placed bottom of trench, take " people " font paving mode, permeate draining by the centre to both sides, longitudinal gradient is than 1% at the bottom of the hillside ditch.Take overlapping mode to be connected, lap of splice 10cm is with the earth excavation backfill.Flexible infiltration salt discharge band is made up of 3 groups of lattice chambers, long 5m, and each flat width in lattice chamber is 7.85cm.Fill the mixing particle diameter rubble of particle diameter 2-3cm in the bag, filler accounts for 90% of bag volume.It is as shown in Figure 6 that 8 side schematic views laid in flexible infiltration salt discharge band " people " font.
5, on the plot of reincarnate, be provided with in length and breadth block the water furrow ridge, retain natural rainfall, through behind 3-5 heavy rain, make salinity in the thin solum with the rainwater leaching through the permeable band of salt discharge, drain ditch eliminating.
6, top layer, the plot cover plant straw compost (5m after the process desalinization of soil by flooding or leaching
3/ mu), carry out the top layer and plough rake, make topsoil and fertilizer evenly mix.
7, according to the afforestation requirement, in afforestation on the saline land of the comprehensive regulation and improvement, the dry land willow of planting in the orographic uplift zone, Chinese wax and the living poplar of speed, seeding row spacing 3m*3m.At arbor planting hole periphery the ventilative vertical shaft of the flexible salt discharge of integral type is set, at 20cm place, planting hole both sides, symmetry punching, aperture 5.5cm, degree of depth 1m.With diameter is 5cm, and length is that the ventilative vertical shaft of the flexible salt discharge of the integral type of 1m is implanted in the hole, and this vertical shaft is the cylindrical pocket of processing with the high strength polyamide fibre, and packing material is 2-3cm mixing particle diameter rubble in the bag, and is shown in figure 10.Near water catchment area low humidity ecological region planting reed.
Through after the comprehensive regulation; According to detecting; Administer district's soil salt content by 6.0 ‰ before administering with drop to 2.9 ‰; The plant percent of planting reaches more than 90%, for this area's shelterbelt construction and saline-alkali soil forestation greening provides the technical system of a cover mature and feasible, effectively improves regional greening level and ecotope.
This instance is that the i.e. intensive infiltration salt discharge of shallow-layer mode improves the efficiency of entire system infiltration salt discharge to the replenishing of instance 2.With the ground in the instance 24 flexibility infiltration salt discharge band of forming by 3 groups of lattice chambers in the step, change the monomer infiltration salt discharge pipe that constitutes by 1 lattice chamber into, lay spacing and be reduced into 2m, the intensive infiltration salt discharge of formation shallow-layer mode by 6m.
Compare with instance 2, on equal basis of dropping into, 3 times of draining band reduced distances, infiltration salt discharge efficient improves nearly more than 20% on the original basis.
This instance is the improvement to instance 2, and both the plants configuration mode was optimized.At embodiment 2 the 6th after the step, plant one season salt tolerant alkali good green manure crop, after ploughing deeply slaking, carry out afforestation.The plants configuration mode that the even seeding row spacing in orographic uplift district is planted arbor; Change along infiltration salt discharge band both sides the isosceles triangle salt tolerant alkali arbor of planting into; The irregular all kinds of salt tolerant alkali shrubs of planting of forming a team between the infiltration salt discharge band; Further enrich the afforestation collocation form, promote the greening landscape effect, wherein the ventilative vertical shaft of the flexible salt discharge of transplanted seedling tree and integral type is used.
Arbor is planted: along the infiltration salt discharge band 1 both sides excavation planting hole and the nursery stock of planting, and planting hole spacing 3m, distance infiltration draining band 1.5m.At 20cm place, planting hole both sides, symmetry punching, aperture 5.5cm, degree of depth 1m; With diameter is 5cm, and length is that the ventilative vertical shaft of the flexible salt discharge of the integral type of 1m is implanted in the hole, and packing material is 2-3cm mixing particle diameter rubble, and is as shown in Figure 8.
Shrub is planted: in arbor was planted the district, irregular laying shrub is formed a team to plant and distinguishes 8, and was as shown in Figure 8.According to the design shape of planting, make a call to the hole of the dark 60cm of a diameter 3.5cm at the inboard every 1.5m in zone that plants; The ventilative vertical shaft of the flexible salt discharge of the integral type of diameter 3cm length 60cm is implanted in the hole, and packing material is a 1-2cm mixing particle diameter rubble, and shrub is mainly planted and spends more Chinese tamarisk, and is as shown in Figure 9.
Compare with instance 2,, further improved the utilization ratio of saline land infiltration salt discharge facility, can effectively improve plant long preservation rate and year increment through the saline alkali land drainage system is combined with the plant setting collocation form.Simultaneously,, strengthened the green belt hierarchical structure through optimizing the plants configuration mode, bigger improvement greening level and landscape effect.
1, on saline and alkaline plot to be administered, in conjunction with physical relief,, take the low view mima type microrelief sculpting method that height is filled out that digs according to soil later-stage utilization direction, form the low-lying water catchment area of 5 draining salt discharges, gathering ground accounts for 17.5% of total improvement area.By excavating the drain ditch by height to low direction, the drain ditch communicates with low-lying water catchment area.Spacing of drainage ditches 20m, the degree of depth is 1m from the face of land.
2, the top layer, plot behind the excavation drain ditch covers farm animal excrement compost (10m
3/ mu) back machinery is turned over, and ploughing depth 30cm translates into the bottom with organic manure.
3, in the plot after turning over, evenly excavate flexible infiltration salt discharge band perpendicular to the drain ditch and bury ditch underground, furrow width 50cm, ditch depth 50cm, ditch spacing 8m.
4, the flexibility salt discharge band that seeps water is placed bottom of trench, take " people " font paving mode, permeate draining by the centre to both sides, longitudinal gradient is than 0.8% at the bottom of the hillside ditch.Take overlapping mode to be connected, lap of splice 30cm is with the earth excavation backfill.Flexible infiltration salt discharge band is made up of 3 groups of lattice chambers, long 4m, and each flat width in lattice chamber is 10cm.Fill the broken building waste of mixing particle diameter of particle diameter 3-5cm in the bag, filler accounts for 80% of bag volume.It is as shown in Figure 6 that 8 side schematic views laid in flexible infiltration salt discharge band " people " font.
5, on the plot of reincarnate, be provided with in length and breadth block the water furrow ridge, retain natural rainfall, make full use of the rainy season precipitation desalinization of soil by flooding or leaching, the salinity in the thin solum is got rid of through the permeable band of salt discharge, drain ditch with the rainwater leaching.
6, top layer, the plot cover plant straw compost (8m after the process desalinization of soil by flooding or leaching
3/ mu), carry out the top layer and plough rake, make topsoil and fertilizer evenly mix.
7, on through the plot beyond the low-lying water catchment area behind the comprehensive improvement, lay the ventilative vertical shaft of salt discharge, strengthen the whole permeable effect of salt discharge in plot.The ventilative vertical shaft diameter of the flexible salt discharge of integral type is 5cm, and length 80cm fills 2-3cm mixing particle diameter volcanic rock in the bag, and filler accounts for 95% of bag volume.Every 1.5m
2Beat the circular hole on the vertical face of land, aperture 5.5cm, degree of depth 90cm gets final product vertical implantation of the ventilative vertical shaft of the flexible salt discharge of integral type.
8, along the infiltration salt discharge band both sides excavation planting hole and the big bar nursery stock of the non-irrigated poplar of little U.S. of planting, form the forest belt, planting hole spacing 2.5m, distance infiltration draining band 1.5m.At 20cm place, planting hole both sides, symmetry punching, aperture 11cm, degree of depth 1m; With diameter is 10cm, and length is that the ventilative miniature vertical shaft of the flexible salt discharge of the integral type of 1m is implanted in the hole, and packing material is a 3-5cm mixing particle diameter volcanic rock.After the comprehensive regulation and improvement, in the forest belt, can plant economic forest or drilling forage crop are like economic forest and forage crop such as sea-buckthorn, arrow-leaved oleaster, red building, Chinese sorghums.。
After the comprehensive regulation; Administer district's plough horizon basicity decline 11.0-13.5%, total alkalinity decline 0.15-0.17cmol/kg, pH value decline 1.2-2.1, total salt decline 2.1-3.5 ‰; The forest belt survival rate reaches more than 85%, and the land area of one unit economic benefit on average improves 30-40%.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from know-why of the present invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (10)
1. low humidity salt-alkali shoaly land infiltration salt discharge and afforestation method, it specifically may further comprise the steps:
(1) the enterprising capable view mima type microrelief moulding arrangement in saline and alkaline plot to be administered forms orographic uplift green belt and low-lying charge for remittance salt discharge district, according to excavating the drain ditch by height to low direction;
(2), the top layer, plot behind the excavation drain ditch turns over after adding fertilizer;
(3) in the plot after turning over, evenly excavate flexible infiltration salt discharge band perpendicular to the drain ditch and bury ditch underground;
(4) the flexibility salt discharge band that seeps water is placed bottom of trench, communicate with the drain ditch is vertical, the earth excavation backfill;
(5) on the plot of reincarnate, be provided with in length and breadth block the water furrow ridge;
(6) after the step (5), add organic manure once more, and carry out the top layer and plough rake, make topsoil and fertilizer evenly mix;
(7) after the step (6), on the plot, lay the ventilative vertical shaft of the flexible salt discharge of integral type;
(8), on the saline land of the comprehensive regulation and improvement, planting, sowing the careless plant of the tall filling of salt tolerant alkali according to the afforestation requirement.
2. the method for claim 1 is characterized in that, the said spacing of drainage ditches of step (1) is 20-40m, and the degree of depth is 1-1.5m from the face of land.
3. the method for claim 1 is characterized in that, the said fertilizer of step (2) is acid fertilizer; Ploughing depth is 20-40cm.
4. the method for claim 1 is characterized in that, the said infiltration salt discharge of step (3) band is buried ditch underground, furrow width 40-50cm, and ditch depth 40-60cm, ditch spacing 4-10m, the bottom of trench longitudinal gradient compares 0.8-1%.
5. the method for claim 1 is characterized in that, the said flexible infiltration salt discharge band of step (4) is the netted bag of " bamboo raft " type that adopts high strength non-degradable fabric to process; Bag is long to be 3-5m; It adopts, and whole block material is knitting to form, and is made up of 1-4 group lattice chamber, and each flat width in lattice chamber is 7.85-15.7cm.
6. method as claimed in claim 5 is characterized in that, is filled with the volcanic rock, rubble of the mixing particle diameter of particle diameter 1-5cm in said " bamboo raft " type bag or through one or more fillers in the building waste of the mixing particle diameter of cracking and sorting; Filler accounts for the 85-95% of bag volume; Filling the back width is 5-40cm, and thickness is 5-10cm.
7. the method for claim 1 is characterized in that, in the step (7), is waiting to administer every 0.5-2m in the saline land
2Beat the circular hole on the vertical face of land, the ventilative vertical shaft diameter of the flexible salt discharge of the aperture and the degree of depth and integral type is suitable with length.
8. the method for claim 1 is characterized in that, the ventilative vertical shaft of the flexible salt discharge of the said integral type of step (7) adopts high strength non-degradable fabric to process cylindrical netted bag, and diameter is 2-10cm, length 0.5-1m; Be filled with one or more fillers in mixing particle diameter volcanic rock, rubble or the building waste of particle diameter 1-5cm in the bag; Said filler accounts for the 85-95% of bag volume.
9. the method for claim 1; It is characterized in that the said salt tolerant alkali of step (8) is tall irritates that careless plant is that middle mountain China fir, swamp cypress, Luan Shu, Chinese wax, ligustrum lucidum ait, dry land willow, Chinese tamarisk, pagatpat, horsetail beefwood, shrubby flase indigo, the sea ice rose of Sharon, alkali are fluffy, in alkali cogongrass or the Chinese small iris one or more.
10. the application of any said method of claim 1-9 in administering the low humidity salt-alkali shoaly land.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210202730.0A CN102696300B (en) | 2012-06-15 | 2012-06-15 | Method for water seepage, salt discharge and afforestation of low-humidity saline and alkaline beach and application of method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210202730.0A CN102696300B (en) | 2012-06-15 | 2012-06-15 | Method for water seepage, salt discharge and afforestation of low-humidity saline and alkaline beach and application of method |
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| CN102696300A true CN102696300A (en) | 2012-10-03 |
| CN102696300B CN102696300B (en) | 2015-04-08 |
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| CN201210202730.0A Active CN102696300B (en) | 2012-06-15 | 2012-06-15 | Method for water seepage, salt discharge and afforestation of low-humidity saline and alkaline beach and application of method |
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| CN103583106A (en) * | 2013-11-22 | 2014-02-19 | 上海创博生态工程有限公司 | Method for biologically improving saline-alkali soil |
| CN103782761A (en) * | 2014-01-15 | 2014-05-14 | 中国科学院东北地理与农业生态研究所 | Method for building artificial pasture in low-humidity saline and alkaline land |
| CN104115650A (en) * | 2014-07-03 | 2014-10-29 | 北京林大林业科技股份有限公司 | Greening method for saline-alkaline land |
| CN104255107A (en) * | 2014-09-09 | 2015-01-07 | 天津海林园艺环保科技工程有限公司 | Vertical type seepage pipe salt elimination method for seashore saline soil |
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| CN103583106A (en) * | 2013-11-22 | 2014-02-19 | 上海创博生态工程有限公司 | Method for biologically improving saline-alkali soil |
| CN104718907A (en) * | 2013-12-18 | 2015-06-24 | 天津港海湾园林绿化有限公司 | Seeding planting technology for tamarix chinensis in dredger fill original soil area |
| CN103782761A (en) * | 2014-01-15 | 2014-05-14 | 中国科学院东北地理与农业生态研究所 | Method for building artificial pasture in low-humidity saline and alkaline land |
| CN104115650B (en) * | 2014-07-03 | 2016-08-03 | 北京林大林业科技股份有限公司 | A kind of saline land greening method |
| CN104115650A (en) * | 2014-07-03 | 2014-10-29 | 北京林大林业科技股份有限公司 | Greening method for saline-alkaline land |
| CN104255107A (en) * | 2014-09-09 | 2015-01-07 | 天津海林园艺环保科技工程有限公司 | Vertical type seepage pipe salt elimination method for seashore saline soil |
| CN104255107B (en) * | 2014-09-09 | 2016-08-17 | 天津海林园艺股份有限公司 | It is a kind of that marine solonchak is vertical oozes bank of tubes salt method |
| CN104488394A (en) * | 2014-11-24 | 2015-04-08 | 山东胜伟园林科技有限公司 | Comprehensive improvement method for salinized soil |
| CN104969830A (en) * | 2015-07-10 | 2015-10-14 | 江苏省林业科学研究院 | Poorest saline-alkali soil simple drain salt elimination forestation technique |
| CN104969830B (en) * | 2015-07-10 | 2018-07-17 | 江苏省林业科学研究院 | The saline and alkaline simple underdrain salt discharge afforestation technique in exceptionally poverty-stricken ground |
| CN105638199A (en) * | 2015-12-30 | 2016-06-08 | 山东省林业科学研究院 | Method for increasing afforestation survival rate of quick growing tree species in coastal saline-alkali land through catchment, salt leaching and water retention |
| CN107969275A (en) * | 2017-11-29 | 2018-05-01 | 福建三明林业学校 | Method of forestation under a kind of podocarpus nagi Casuarina equisetifolia Plantation |
| CN112385348A (en) * | 2020-11-04 | 2021-02-23 | 山东农业大学 | Method for treating high-saline-alkali soil by using salt resistance and salt discharge of reed |
| CN112385348B (en) * | 2020-11-04 | 2022-05-13 | 山东农业大学 | Method for treating high-saline-alkali soil by using salt resistance and salt discharge of reed |
| CN113892316A (en) * | 2021-10-15 | 2022-01-07 | 东营市农业科学研究院 | Saline-alkali soil improvement and treatment system and well forming and slotting method thereof |
| 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 |
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