CN108391563A - A kind of arid biogeographic zone strongly salined soil barren hill greening method - Google Patents
A kind of arid biogeographic zone strongly salined soil barren hill greening method Download PDFInfo
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Abstract
The invention discloses a kind of arid biogeographic zone strongly salined soil barren hill greening method, this method carries out full slope greening to barren hill mima type microrelief with salt sward band intercropping method of classifying first, realizes greening, fertilizing soil, desalination, the function of providing herbage；By guiding gutter and drainage belt, barren hill runoff water, salt are come together in into drainage belt, then plant thermophilic salt salt sward band and cradled, realizes biological drainage and biological salt discharge；By counter-slope furrow, slope runoff is avoided, the desalinization of soil by flooding or leaching for waste slope surface provides condition；Capillary effect is blocked by the gravel layer of 60cm, the salt to reduce drainage belt soil surface rises；This method is integrated with the physically improved of salt affected soil, biological modification and combines furrow farming and water-saving drip irrigation technical measures, convenient for maintenance, easy construction, at low cost, the stabilization and sustainable for realizing the greening of arid biogeographic zone strongly salined soil barren hill, practical experience and Technical Reference are provided for arid biogeographic zone solonchak barren hill Urban Greening.
Description
Technical field
The present invention relates to a kind of arid biogeographic zone strongly salined soil barren hill greening methods, belong to revegetation and conservation technology neck
Domain.
Background technology
Arid biogeographic zone is since left over by history and drought, soil contain salt mostly, and there are remaining solonchak and modern salification
Solonchak.The highway in desert is passed through with hypsography, usually serious in the lower barren hill salification of topography, reason there are 3 aspects：
1. history is at the remaining salinity of native reason, due to precipitation rareness, residual salt cannot migrate；2. it is relatively low that salt dirt is deposited on topography with the wind
Place；3. modern man's activity, in order to improve the ecological environment, check winds and fix drifting sand, the unremitting carry out afforestation project of people, green area irrigation
Moisture carry salt along topography and come together in the place of hypsography low-lying, while also these section groundwater table rises, more
Acute modern salification process.Salinized soil saliferous is higher, and the soil liquid flow of water is low so that root system of plant is difficult to absorb water, and causes routine
" physiological drought " of plant, when soil salt content is more than 0.3%, most of ornamental plants cannot survive and grow, and cause green
Chemical industry journey fails every year.Therefore, solonchak greening, it is the most important thing to improve survival rate.
The greening of solonchak barren hill must solve the problems, such as that soil salt is excessively high first.Traditional " big hydraulic pressure salt " effect is fast but cost
Greatly, water consumption is more, exists repeatedly, is unsustainable, and is easy to cause barren hill soil erosion.Analysis greening failure cause and " suitable ground
Suitable tree " principle, to realize the stabilization, sustainable of strongly salined soil barren hill greening, since 2016, we screened suitable for greening
Halophytes type, biological modification physically improved in conjunction with saline-alkali soil, water-saving drip irrigation and agronomic measures, it is proposed that strongly salined soil barren hill
Greening method.
Invention content
Present invention aims at provide a kind of method of arid biogeographic zone strongly salined soil barren hill greening, this method is micro- to barren hill first
Classification of landform arranges, and selects the salt sward band for being suitble to different great soil groups, and full slope greening is carried out using intercropping method, realize greening,
Fertilizing soil, desalination, the function that herbage is provided；Incorporation engineering measure and biotechnology structure barren hill moisture and salt regime channel：Pass through
Barren hill runoff water, salinity are come together in drainage belt by guiding gutter and drainage belt, in conjunction with thermophilic salt halophytes straw cord plantation and cut
It cuts, realizes biological drainage and biological salt discharge；Trickle irrigation can reduce barren hill runoff to greatest extent, and lasting, a small amount of, high frequency provides fresh water
Ensure growth of the plant in high alkali-salinity soil soil.This method is integrated with the physically improved of salt affected soil, biological modification and combines ridge
Ditch farming and water-saving drip irrigation technical measures realize arid biogeographic zone strongly salined soil barren hill and afforest convenient for maintenances, easy construction, at low cost
Stabilization and sustainable, provide practical experience and Technical Reference for arid biogeographic zone solonchak barren hill Urban Greening.
A kind of arid biogeographic zone strongly salined soil barren hill greening method of the present invention, follows these steps to carry out：
Barren hill arranges：
A, the saliferous 2-2.5% strongly salined soil barren hills for selecting 5-25 ° of the gradient are taken and cut the low partial soil preparation's mode of high benefit, use
Minibul arranges top of the slope (1) earth's surface, and raised scabbles, and pit is banketed and modified, and top of the slope (1) keeps 0.3%
Counter-slope；Slope surface (2) arrangement is carried out again, clears up side slope, recess is filled and led up, keeps slope surface (2) smooth；
B, kind of a planting ditch is opened：Contour cultivation ditch (3) is opened along contour with ditching machine by slope surface (2) from top to bottom, ditch earth culture ridge,
Interior low outer high formation counter-slope furrow, outer ridge is higher 10-15cm than interior ridge, row spacing 40-50cm, deep 20-30cm, plants planting ditch (3) spacing
40-50cm；
C, guiding gutter is built：At top of the slope (1) center guiding gutter, wide 30-40cm, deep 20- are built with cement along ridge direction
Convex stone is arranged in 30cm, slot bottom；The vertical contour interval 50m of (2) first guiding gutter (4) of slope surface is laid, with (1) second water guide of top of the slope
Slot (5) is connected, to guide slope runoff；Kind planting ditch (3) and the first guiding gutter (4) joint grain size 1cm and 4cm gravel
According to volume ratio 2:1 mixing block, emergence before extremely drifted about with water to prevent seed with grave, two leaf of seedling wholeheartedly when by soil opening,
Open the first guiding gutter (4) and the second guiding gutter (5)；
D, bottom of slope builds drainage belt：Ecological permeable, biological salt discharge drainage belt (7) are built, it will be in bottom of slope (6) highway roadside stone
3-6m wide, 1m are deep, and the husky vehicle of soil body excavator and fortune of long 300-500m is removed, then from bottom to top successively landfill 30cm it is thick,
The gravel (8) of grain size 4cm, 30cm is thick, grain size 2cm gravel (8), covers permeable geotextiles or felt (9), 40cm is thick, original soil with
Clinker 3:The clinker of 1 mixing is native (10), and last soil surface spreads fertilizer over the fields cow dung rotary tillage and buries, and applies 2000kg per acre；
E, the first guiding gutter (4) and the second guiding gutter (5) that step c is built are by platform, slope surface (2) charge for remittance steps for importing d
In the drainage belt (7) of structure；
Drip irrigation system is arranged：
F, along slope ridge arrangement φ 100PE water-supply-pipes (11), buried depth 1m, interval 100m installation φ 63PE are discharged stake (12), double
To installation φ 63PE ball valves (13)；φ 63PE branch pipes (14) connection water outlet stake (12), perpendicular to contour arrangement, unidirectional long 50m；
The drip irrigation zone (15) for being connected to branch pipe (14) is layed in the kind planting ditch (3) of slope surface (2) and bottom of slope (6)；Top of the slope (1) is using sowing
Machine, which is completed at the same time, is laid with drip irrigation zone (15) and film coating operation, mulch wide 60cm, film surface 40cm, windproof every 2-3m firmings on film,
One film, one band, drip irrigation zone (15) are connected with branch pipe (14), spacing 60-80cm；
Salt sward band plantation：
G, top of the slope is planted：It pulverizes and sieves, presses by the seed difference impurity elimination sieving of splendid achnatherum, daghestan sweet clover, then by decomposed cow dung
According to seed and cow dung volume ratio 1:After 3 mix thoroughly, bunch planting is in drip irrigation zone (15) both sides of top of the slope (1), per seed 6-10, cave, hill spacing
6-10cm forms the seeding belt of 30-40cm, an a kind of plant of film, according to splendid achnatherum, the band-like intercropping plant of daghestan sweet clover sequence；
H, slope surface is planted：Using contour large level ditch planting, the seed difference impurity elimination of Sophora alopecuroide, limonium gmeliniiKuntze is sieved,
Decomposed cow dung is pulverized and sieved again, according to seed and cow dung volume ratio 1:After 3 mix thoroughly, it is sown in the kind planting ditch of slope surface (2) respectively
(3) interior drip irrigation zone (15) both sides, breadth 30-40cm, a kind of plant of a line, according to Sophora alopecuroide, band-like of limonium gmeliniiKuntze sequence
It plants；
I, bottom of slope is planted：By Suaeda salsa+salicornia europaeal seed, respectively impurity elimination sieving, then decomposed cow dung is pulverized and sieved, is pressed
According to seed and cow dung volume ratio 1:After 3 mix thoroughly, kind planting ditch (3) interior drip irrigation zone (15) both sides of bottom of slope (6) are sown in, form 30-
The seeding belt of 40cm, a kind of plant of a line, according to Suaeda salsa+band-like intercropping plant of salicornia europaeal sequence；
It irrigates：
J, water-filling, which reaches, after drip irrigation zone (15) cloth is good is not blown up, after planting pours water immediately, top of the slope (1) is with soil under film
It wets through and infiltrates to film external edge subject to soil, slope surface (2) and bottom of slope (6) furrow dripping irrigation water are with wetted front to ridge height
2/3 is degree；Seeding stage poured water 1 time every 2 days, carried out moisturizing when with soil moisture being 15% after seedling stage, each irrigation quantity control
In 120m3/hm2-150m3/hm2；
Harvesting：
Suaeda salsa, salicornia europaeal toothing 20-30cm are cradled and are taken away by plant flowering fruit bearing stage before and after September, with daghestan sweet clover, precarious
Greenfeed is done in grass, Sophora alopecuroide mixing, is played biology and is moved salt functional.
A kind of the characteristics of arid biogeographic zone strongly salined soil barren hill greening method of the present invention, this method is：
The main feature that soil alkaline is heavy, barren, arid, soil erosion is arid biogeographic zone strongly salined soil barren hill.Pass through " counter-slope ridge
Ditch " avoids slope runoff, and condition is provided for the desalinization of soil by flooding or leaching of slope surface；Capillary effect is blocked by the gravel layer of 60cm, reduces drainage belt
The salt of native table rises；Drainage channel is arranged in top of the slope, slope surface and bottom of slope, and barren hill runoff water, salt is made to import bottom of slope row along guiding gutter
Water band, drainage belt plant the thermophilic salt halophytes straw cord of humidogene, realize biological drainage, salt discharge；The under-film drip irrigation of top of the slope, water-saving, suppression
Salt provides good developing environment for plant growth；Salt sward interband is made, and pulse family and grass family mutual reciprocity and mutual benefit play simultaneously
Edge effect, to reach improve biomass, depth root system anchoring reinforced action reduce soil erosion, fertilizing soil and
Inhibit soil salt to rise, makes Soil Desalting, while providing herbage, develop animal husbandry arid biogeographic zone solonchak barren hill with important meaning
Justice；Plantation is based on sowing, this high-output stress-resistance of salt sward, adds drip irrigation technique, therefore can be afforested with anti-season, Xinjiang can
With from late March until early September can be carried out afforesting.This method is integrated with physically improved, the biological modification of salt affected soil
And furrow farming and water-saving drip irrigation technology are combined, convenient for maintenances, easy construction, at low cost, realize arid biogeographic zone strongly salined soil famine
The stabilization and sustainable of slope greening, practical experience and Technical Reference are provided for arid biogeographic zone solonchak barren hill Urban Greening.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Specific implementation mode
Embodiment 1
In mid-April, 2016, in Urumchi sweet spring water fort economic and technological development zone, strongly salined soil barren hill highway division carries out
The experiment and demonstration of 300m long：
A, 5-25 ° of the selection strongly salined soil barren hill gradient, soil salt content 2%, barren land occupation condition, on pre-existing topography basis
On, it takes and cuts the low partial soil preparation's mode of high benefit, 1 earth's surface of top of the slope is arranged with minibul, raised scabbles, and pit carries out
It bankets and modifies, top of the slope 1 keeps 0.3% counter-slope；The arrangement of slope surface 2 is carried out again, clears up side slope, recess is filled and led up, slope surface 2 is made
It is smooth；
B, kind of a planting ditch is opened：Contour cultivation ditch 3 is opened along contour with ditching machine by slope surface 2 from top to bottom, ditch earth culture ridge is interior low
Outer high formation counter-slope furrow, outer ridge is higher 10cm than interior ridge, row spacing 40cm, deep 20cm, 3 spacing 40cm of kind planting ditch；
C, guiding gutter is built：1 center of top of the slope along ridge direction with cement build guiding gutter, wide 30-40cm, deep 20-30cm,
Convex stone is arranged in slot bottom；2 first guiding gutter of slope surface, 4 vertical contour interval 50m is laid, and is connected with 1 second guiding gutter 5 of top of the slope,
To guide slope runoff；Planting ditch 3 and 4 joint of the first guiding gutter are planted with grain size 1cm and 4cm gravel according to volume ratio 2:1 mixing
Block, emergence before extremely drifted about with water to prevent seed with grave, two leaf of seedling wholeheartedly when by soil open, unlatching 4 He of the first guiding gutter
Second guiding gutter 5；
D, bottom of slope builds drainage belt：Ecological permeable, biological salt discharge drainage belt 7 are built, by 3m in 6 highway roadside stone of bottom of slope
The husky vehicle of soil body excavator and fortune of width, 1m depths, long 300m is removed, and then from bottom to top fills 30cm thickness, grain size 4cm successively
Gravel 8,30cm is thick, grain size 2cm gravel, covers permeable geotextiles 9, and 40cm is thick, original soil and clinker 3:The clinker soil of 1 mixing
10, last soil surface spreads fertilizer over the fields cow dung rotary tillage and buries, and applies 2000kg per acre；
E, the first guiding gutter 4 and the second guiding gutter 5 that step c is built build platform, 2 charge for remittance steps for importing d of slope surface
In drainage belt 7；
Drip irrigation system is arranged：
F, arrange that φ 100PE water-supply-pipe 11, buried depth 1m, interval 100m installation φ 63PE are discharged stake 12, two-way peace along slope ridge
Fill φ 63PE ball valves 13；φ 63PE branch pipes 14 are connect with water outlet stake 12, are arranged perpendicular to contour, unidirectional long 50m；It is connected to branch
The drip irrigation zone 15 of pipe 14 is layed in the kind planting ditch 3 of slope surface 2 and bottom of slope 6；Top of the slope 1 is completed at the same time using seeder and is laid with drip irrigation zone
15 and film coating operation, mulch wide 60cm, film surface 40cm, a, film one band windproof every 2m firmings, drip irrigation zone 15 and branch pipe 14 on film
It is connected, spacing 60cm；
Salt sward band plantation：
G, top of the slope is planted：It pulverizes and sieves, presses by the seed difference impurity elimination sieving of splendid achnatherum, daghestan sweet clover, then by decomposed cow dung
According to seed and cow dung volume ratio 1:After 3 mix thoroughly, bunch planting is in 15 both sides of the drip irrigation zone of top of the slope 1, per 6, hill spacing 6cm, cave seed, shape
At the seeding belt of 30cm, an a kind of plant of film, according to splendid achnatherum, the band-like intercropping plant of daghestan sweet clover sequence；
H, slope surface is planted：Using contour large level ditch planting, the seed difference impurity elimination of Sophora alopecuroide, limonium gmeliniiKuntze is sieved,
Decomposed cow dung is pulverized and sieved again, according to seed and cow dung volume ratio 1:After 3 mix thoroughly, it is sown in respectively in the kind planting ditch 3 of slope surface 2
15 both sides of drip irrigation zone, breadth 30cm, a kind of plant of a line, according to Sophora alopecuroide, the band-like intercropping plant of limonium gmeliniiKuntze sequence；
I, bottom of slope is planted：By Suaeda salsa+salicornia europaeal seed, respectively impurity elimination sieving, then decomposed cow dung is pulverized and sieved, is pressed
According to seed and cow dung volume ratio 1:After 3 mix thoroughly, 15 both sides of drip irrigation zone in the kind planting ditch 3 of bottom of slope 6 are sown in, the sowing of 30cm is formed
Band, a kind of plant of a line, according to Suaeda salsa+band-like intercropping plant of salicornia europaeal sequence；
It irrigates：
J, water-filling, which reaches, after 15 cloth of drip irrigation zone is good is not blown up, after planting pours water immediately, top of the slope 1 is whole with soil under film
Drenched and infiltrate to film external edge subject to soil, slope surface 2 and 6 furrow dripping irrigation water of bottom of slope are to spend with wetted front to ridge high 2/3；Go out
Seedling stage poured water 1 time every 2 days, carried out moisturizing when with soil moisture being 15% after seedling stage, each irrigation quantity control is in 120m3/hm2；
Harvesting：
Suaeda salsa, salicornia europaeal toothing 20-30cm are cradled and are taken away by plant flowering fruit bearing stage before and after September, with daghestan sweet clover, precarious
Greenfeed is done in grass, Sophora alopecuroide mixing, is played biology and is moved salt functional.
Embodiment 2
In May, 2017, Urumchi sweet spring water fort economic and technological development zone Shenhua Group Co highway division into
Strongly salined soil barren hill of having gone afforests 500m long test sections：
Barren hill arranges：
A, 5-25 ° of the selection strongly salined soil barren hill gradient, soil salt content 2.5%, barren, soil erosion weight land occupation condition,
It on the basis of pre-existing topography, takes and cuts the low partial soil preparation's mode of high benefit, 1 earth's surface of top of the slope is arranged with minibul, protrusion
Scabble, pit is banketed and is modified, top of the slope 1 keep 0.3% counter-slope；The arrangement of slope surface 2 is carried out again, clears up side slope, it will be recessed
Sunken place is filled and led up, and keeps slope surface 2 smooth；
B, kind of a planting ditch is opened：Contour cultivation ditch 3 is opened along contour with ditching machine by slope surface 2 from top to bottom, ditch earth culture ridge is interior low
Outer high formation counter-slope furrow, outer ridge is higher 15cm than interior ridge, row spacing 50cm, deep 30cm, 3 spacing 50cm of kind planting ditch；
C, guiding gutter is built：Guiding gutter, wide 40cm, deep 30cm are built with cement along ridge direction at 1 center of top of the slope, slot bottom is set
Set convex stone；2 first guiding gutter of slope surface, 4 vertical contour interval 50m is laid, and is connected with 1 second guiding gutter 5 of top of the slope, with guiding
Slope runoff；Planting ditch 3 and 4 joint of the first guiding gutter are planted with grain size 1cm and 4cm gravel according to volume ratio 2:1 mixing blocks, and goes out
Extremely drifted about with water to prevent seed with grave before seedling, two leaf of seedling wholeheartedly when soil is opened, open the first guiding gutter 4 and the second water guide
Slot 5；
D, bottom of slope builds drainage belt：Ecological permeable, biological salt discharge drainage belt 7 are built, by 6m in 6 highway roadside stone of bottom of slope
The husky vehicle of soil body excavator and fortune of width, 1m depths, long 500m is removed, and then from bottom to top fills 30cm thickness, grain size 4cm successively
Gravel 8,30cm is thick, grain size 2cm gravel 8, felt 9, and 40cm is thick, original soil and clinker 3:The clinker soil 10 of 1 mixing, last soil
Earth surface spreads fertilizer over the fields cow dung rotary tillage and buries, and applies 2000kg per acre；
E, the first guiding gutter 4 and the second guiding gutter 5 that step c is built build platform, 2 charge for remittance steps for importing d of slope surface
In drainage belt 7；
Drip irrigation system is arranged：
F, arrange that φ 100PE water-supply-pipe 11, buried depth 1m, interval 100m installation φ 63PE are discharged stake 12, two-way peace along slope ridge
Fill φ 63PE ball valves 13；φ 63PE branch pipes 14 are connect with water outlet stake 12, are arranged perpendicular to contour, unidirectional long 50m；It is connected to branch
The drip irrigation zone 15 of pipe 14 is layed in the kind planting ditch 3 of slope surface 2 and bottom of slope 6；Top of the slope 1 is completed at the same time using seeder and is laid with drip irrigation zone
15 and film coating operation, mulch wide 60cm, film surface 40cm, a, film one band windproof every 3m firmings, drip irrigation zone 15 and branch pipe 14 on film
It is connected, spacing 80cm；
Salt sward band plantation：
G, top of the slope is planted：It pulverizes and sieves, presses by the seed difference impurity elimination sieving of splendid achnatherum, daghestan sweet clover, then by decomposed cow dung
According to seed and cow dung volume ratio 1:After 3 mix thoroughly, bunch planting is in 15 both sides of the drip irrigation zone of top of the slope 1, per 10, hill spacing 10cm, cave seed,
Form the seeding belt of 40cm, an a kind of plant of film, according to splendid achnatherum, the band-like intercropping plant of daghestan sweet clover sequence；
H, slope surface is planted：Using contour large level ditch planting, the seed difference impurity elimination of Sophora alopecuroide, limonium gmeliniiKuntze is sieved,
Decomposed cow dung is pulverized and sieved again, according to seed and cow dung volume ratio 1:After 3 mix thoroughly, it is sown in respectively in the kind planting ditch 3 of slope surface 2
15 both sides of drip irrigation zone, breadth 40cm, a kind of plant of a line, according to Sophora alopecuroide, the band-like intercropping plant of limonium gmeliniiKuntze sequence；
I, bottom of slope is planted：By Suaeda salsa+salicornia europaeal seed, respectively impurity elimination sieving, then decomposed cow dung is pulverized and sieved, is pressed
According to seed and cow dung volume ratio 1:After 3 mix thoroughly, 15 both sides of drip irrigation zone in the kind planting ditch 3 of bottom of slope 6 are sown in, the sowing of 40cm is formed
Band, a kind of plant of a line, according to Suaeda salsa+band-like intercropping plant of salicornia europaeal sequence；
It irrigates：
J, water-filling, which reaches, after 15 cloth of drip irrigation zone is good is not blown up, after planting pours water immediately, top of the slope 1 is whole with soil under film
Drenched and infiltrate to film external edge subject to soil, slope surface 2 and 6 furrow dripping irrigation water of bottom of slope are to spend with wetted front to ridge high 2/3；Go out
Seedling stage poured water 1 time every 2 days, carried out moisturizing when with soil moisture being 15% after seedling stage, each irrigation quantity control is in 150m3/hm2；
Harvesting：
Suaeda salsa, salicornia europaeal toothing 20-30cm are cradled and are taken away by plant flowering fruit bearing stage before and after September, with daghestan sweet clover, precarious
Greenfeed is done in grass, Sophora alopecuroide mixing, is played biology and is moved salt functional.
A kind of arid biogeographic zone strongly salined soil barren hill greening method of the present invention, this method is in the economic skill in Urumchi sweet spring water fort
The strongly salined soil barren hill greening that art development zone highway division carries out shows：This survival rate of salt sward reaches 75-95%, and coverage rate reaches
To 70-90%, ground surface soil salinity before transformation than having dropped 20-50%；Between the edge effect made so that biomass is improved 10-20%,
After perennial salt sward this plantation the 2nd year, 2 toothings can be carried out every year and are cradled.It is carried for local cultivation while protecting ecology
It is a kind of ecological management pattern increased income for forage grass.
Claims (1)
1. a kind of arid biogeographic zone strongly salined soil barren hill greening method, it is characterised in that follow these steps to carry out：
Barren hill arranges：
A, the saliferous 2-2.5% strongly salined soil barren hills for selecting 5-25 ° of the gradient are taken and cut the low partial soil preparation's mode of high benefit, pushed away with small-sized
Native machine is to top of the slope（1）Earth's surface arranges, and raised scabbles, and pit is banketed and modified, top of the slope（1）Keep 0.3% counter-slope；
Slope surface is carried out again（2）It arranges, clears up side slope, recess is filled and led up, slope surface is made（2）It is smooth；
B, kind of a planting ditch is opened：By slope surface（2）From top to bottom contour cultivation ditch is opened along contour with ditching machine（3）, ditch earth culture ridge is interior low
Outer high formation counter-slope furrow, outer ridge is higher 10-15cm than interior ridge, row spacing 40-50cm, deep 20-30cm, plants planting ditch（3）Spacing 40-
50cm；
C, guiding gutter is built：In top of the slope（1）Guiding gutter, wide 30-40cm, deep 20-30cm, slot are built with cement in center along ridge direction
Convex stone is arranged in bottom；Slope surface（2）First guiding gutter（4）Vertical contour interval 50m is laid, with top of the slope（1）Second guiding gutter（5）Phase
Connection, to guide slope runoff；Kind planting ditch（3）With the first guiding gutter（4）Joint is with grain size 1cm and 4cm gravel according to volume
Than 2:1 mixing block, emergence before extremely drifted about with water to prevent seed with grave, two leaf of seedling wholeheartedly when by soil open, unlatching first
Guiding gutter（4）With the second guiding gutter（5）；
D, bottom of slope builds drainage belt：Build ecological permeable, biological salt discharge drainage belt（7）, by bottom of slope（6）3-6m in highway roadside stone
The husky vehicle of soil body excavator and fortune of width, 1m depths, long 300-500m is removed, and then from bottom to top fills 30cm thickness, grain size successively
The gravel of 4cm（8）, 30cm is thick, grain size 2cm gravel（8）, cover permeable geotextiles or felt（9）, 40cm thickness, original soil and clinker
3:The clinker soil of 1 mixing（10）, last soil surface spreads fertilizer over the fields cow dung rotary tillage and buries, and applies 2000kg per acre；
E, the first guiding gutter that step c is built（4）With the second guiding gutter（5）By platform, slope surface（2）Charge for remittance steps for importing d structures
Drainage belt（7）In；
Drip irrigation system is arranged：
F, 100 PE water-supply-pipes of φ are arranged along slope ridge（11）, buried depth 1m, interval 63 PE of 100m installation φ are discharged stake（12）, two-way
φ 63PE ball valves are installed（13）；63 PE branch pipes of φ（14）Connection water outlet stake（12）, arranged perpendicular to contour, unidirectional long 50m；
It is connected to branch pipe（14）Drip irrigation zone（15）It is layed in slope surface（2）And bottom of slope（6）Kind planting ditch（3）It is interior；Top of the slope（1）Using sowing
Machine, which is completed at the same time, is laid with drip irrigation zone（15）And film coating operation, mulch wide 60cm, film surface 40cm are windproof every 2-3 m firmings on film,
One film, one band, drip irrigation zone（15）With branch pipe（14）It is connected, spacing 60-80cm；
Salt sward band plantation：
G, top of the slope is planted：It pulverizes and sieves by the seed difference impurity elimination sieving of splendid achnatherum, daghestan sweet clover, then by decomposed cow dung, according to kind
Son and cow dung volume ratio 1:After 3 mix thoroughly, bunch planting is in top of the slope（1）Drip irrigation zone（15）Both sides, per seed 6-10, cave, hill spacing 6-
10cm forms the seeding belt of 30-40cm, an a kind of plant of film, according to splendid achnatherum, the band-like intercropping plant of daghestan sweet clover sequence；
H, slope surface is planted：Using contour large level ditch planting, by the seed difference impurity elimination sieving of Sophora alopecuroide, limonium gmeliniiKuntze, then will
Decomposed cow dung pulverizes and sieves, according to seed and cow dung volume ratio 1:After 3 mix thoroughly, it is sown in slope surface respectively（2）Kind planting ditch（3）It is interior
Drip irrigation zone（15）Both sides, breadth 30-40cm, a kind of plant of a line, according to Sophora alopecuroide, limonium gmeliniiKuntze sequence strip cropping kind
It plants；
I, bottom of slope is planted：By Suaeda salsa+salicornia europaeal seed, respectively impurity elimination sieving, then decomposed cow dung is pulverized and sieved, according to kind
Son and cow dung volume ratio 1:After 3 mix thoroughly, it is sown in bottom of slope（6）Kind planting ditch（3）Interior drip irrigation zone（15）Both sides form 30-40cm
Seeding belt, a kind of plant of a line, according to the band-like intercropping plant of Suaeda salsa+salicornia europaeal sequence；
It irrigates：
J, drip irrigation zone（15）Water-filling, which reaches, after cloth is good is not blown up, after planting pours water immediately, top of the slope（1）It is whole with soil under film
It drenches and infiltrates to film external edge subject to soil, slope surface（2）And bottom of slope（6）Furrow dripping irrigation water is to ridge high 2/3 with wetted front
Degree；Seeding stage poured water 1 time every 2 days, carried out moisturizing when with soil moisture being 15% after seedling stage, each irrigation quantity control exists
120m3/hm2-150m3/hm2；
Harvesting：
Suaeda salsa, salicornia europaeal toothing 20-30cm are cradled and are taken away, with daghestan sweet clover, splendid achnatherum, hardship by plant flowering fruit bearing stage before and after September
Greenfeed is done in bean or pea mixing.
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Denomination of invention: A greening method for barren slope of saline soil in arid area Effective date of registration: 20230210 Granted publication date: 20191015 Pledgee: Karamay Petroleum Branch of Bank of China Ltd. Pledgor: Xinjiang Shengjie Environmental Technology Co.,Ltd. Registration number: Y2023980032418 |