CN113994785B - Method for transforming desert soil by simulating natural geological process of saline-alkali generation in arid region - Google Patents
Method for transforming desert soil by simulating natural geological process of saline-alkali generation in arid region Download PDFInfo
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Abstract
The invention relates to a method for reforming desert soil in a natural geological process for simulating the occurrence of saline and alkaline in arid regions, which comprises the steps of constructing a high-level reservoir in a oasis-desert transition zone, and manually introducing ecological water to form a freshwater tower head; constructing a gentle slope land according to the topography, mixing sand and applying organic fertilizer again to improve the plough layer soil; dividing a suitable farmland and a saline soil dividing line according to the critical depth and gradient of the submerged return salt, and improving soil by segments by utilizing ridge culture, drip irrigation under a film and halophyte; repairing and discharging alkali ditches, digging dry salt discharging pits, and driving soil water salt to be collected to a slope bottom containing and discharging area; the halophyte wind-proof sand-fixing forest is reasonably configured, salt is reduced, soil is improved, vegetation is restored, and the biodiversity of the system is maintained. The system of the agricultural region-periodic salt returning saline soil region-dry salt discharging, containing and discharging region is constructed, demonstration is provided for creating a sustainable farmland in an extremely arid region and reconstructing a wind-proof and sand-fixing ecological barrier of oasis, and the problems of land salt returning and ploughing after south-moving and reclamation of the weapons in Xinjiang, natural oasis degradation, sand storm, sand raising and serious floating dust weather hazard are solved.
Description
Technical Field
The invention belongs to the field of planting improvement of saline-alkali soil in arid regions, and particularly relates to a method for changing desert soil into a farmland and oasis ecological barrier recovery region.
Background
Xinjiang army is advanced in the south, and when the population is moved, saline-alkali barren lands need to be reclaimed, so that the land development economy is improved, and the population is stabilized. However, due to serious salt returning, the newly-cultivated partial land is forced to be abandoned, and the northern technical personnel with production experience, with the successful experience of many years of barren and soil improvement of the stone river mass field, also fails to solve the saline soil problem in south, and the subject group finds that the southern land is a low-lying land on the periphery of a reservoir with good water conditions, along the river bank and in low flood accumulation due to lack of water resources compared with northern, and the new land is a low-lying land on topography due to lack of water resources, so that the problems of salt returning in saline and alkali can not be solved by the existing technologies such as alkali drainage ditch, hidden pipe salt drainage, vertical shaft salt drainage and the like under the influence of incapacity of draining the historical residual salt, prohibition of mining groundwater, continuous lifting of the groundwater level due to surface water irrigation. The land of the group field which is reclaimed for years is abandoned, so that not only is the reliability of developing economy of weapons stricken strikeed, but also the ecological problem is brought. Original and recent land development bring about original vegetation destruction, natural oasis degradation, perennial sand storm and floating dust weather, and seriously influence the production and ecological environment of south ARUM people.
Although saline-alkali soil is spread over the Xinjiang artificial oasis, the farmland or greening land, the hilly land is always better than the crops or trees on the low level land, the land saline-alkali degree is changed on the surface, and the natural geological process rule of the saline-alkali occurrence in arid regions is substantially contained: the Xinjiang arid region has a special inland land characteristic topography rule, mountain snow-melting water is used as a water source, salt (salt rock weathered salt, soil residual salt and modern salt accumulation) is continuously received on the way of flowing from mountain formation runoff to basin, and is converged into the depression according to slope reduction to form mountain land-gobi-mountain front inclined plain-flood accumulation fine soil plain (oasis, desert) -marsh and salt lake landform units, and the saline-alkali gradient in the natural geological process is also formed.
With the development of Xinjiang economy and society, the water resource demand is increased, natural ecological water is squeezed, and the ecological environment problem caused by the squeezing is prominent. Currently, by integrating research results of related problems, experts generally consider that 50% of water consumption is suitable for ecological environment and socioeconomic performance in northwest arid regions. The south Xinjiang river runoff is characterized in that: the flood season is late, xia Shui is concentrated, the winter water is large, and ecological water in the rest period flows into the desert excretion area at the periphery of the oasis area and the desert ecological area at the downstream of the river hometown road in a large amount, so that the runoffs in the arid area are naturally exhausted and lost, and the inefficient disordered management causes low vegetation coverage, singleness and adverse biodiversity.
The problem group aims at the problems, combines with halophyte soil improvement practice, reasonably guides ecological water, applies natural geological process rules of saline-alkali occurrence in arid regions, reforms desert soil into a sustainable wind-proof and sand-fixation barrier suitable for farmlands and oasis, and provides demonstration for army south-entering desert soil reclamation as a long-acting good farmland, wind-proof and sand-fixation and ecological system diversity maintenance.
Disclosure of Invention
The invention aims to provide a method for reforming desert soil in a natural geological process for simulating the occurrence of saline and alkaline in arid regions, which is characterized in that a high-level reservoir is built in a desert transition zone of an oasis, and ecological water is artificially introduced to form a 'light water tower' water head; constructing a gentle slope land according to the topography, mixing sand and applying organic fertilizer again to improve the plough layer soil; dividing a suitable farmland and saline soil dividing line according to the critical depth of submerged return salt, and improving soil by segments by utilizing ridge culture, drip irrigation under a film and halophyte; repairing and discharging alkali ditches, digging dry salt discharging pits, and driving soil water salt to be collected to a slope bottom containing and discharging area; the halophyte wind-proof sand-fixing forest is built, the evaporation of fresh water is reduced, the salt is reduced, the soil is improved, and an ecological system is maintained. The system of the agricultural region-periodic salt returning saline soil region-dry salt discharging, containing and discharging zone is constructed, demonstration is provided for creating a sustainable farmland in an extremely arid region and reconstructing a wind-proof sand-fixing ecological barrier of oasis, and the problems of land salt returning and ploughing after south-moving and barren cultivation of the weapons in Xinjiang, and serious production and ecological hazard of natural oasis, sand storm, sand lifting and floating dust weather are solved.
The invention relates to a method for transforming desert soil in a natural geological process for simulating the occurrence of saline alkali in arid regions, which comprises the following steps:
building a gentle slope land:
a. selecting desert soil around oasis, and constructing 10 by means of machinery according to topography ° Slowly sloping field (2), mixing 20% of sand with slope surface 40cm according to volume percentage, uniformly turning over, applying 3000kg of decomposed cattle and sheep manure per mu of rotary tillage, and carrying out permeable and fertilizer cultivation layer matrix improvement;
building a high-level reservoir on the slope top:
b. building 1 impounding reservoir (1) with the length of 300m, the width of 100m and the depth of 1.5m on the slope top of a gentle slope (2) per 300 mu, and paving a composite geomembrane on the whole pool disc of the impounding reservoir (1); the water is stored in the flood-driving period of the rest work, the water is supplemented by seasonal runoff ecological water, 1/3 of the water surface of the water reservoir (1) is covered with the carbonized bamboo chips which are connected with each other, and the carbonized bamboo chips are pulled and moved along with seasons or sunlight;
planting on gentle slope land in a zonal manner:
c. the gentle slope land (2) is planned to be a strip field with the length of 300 meters and the width of 150 meters;
the first year, halophytes move salt: laying drip irrigation belts according to parallel contour lines with the interval of 0.6m, and broadcasting the suaeda salsa along the drip irrigation belts; immediately irrigating after sowing, wherein the irrigation is carried out 1 time every 2 days in the emergence period until the wetting peak reaches the center line of two adjacent drip irrigation belts; supplementing water when soil humidity is 15% after seedling stage, and controlling water filling amount at 150m each time 3 /hm 2 The method comprises the steps of carrying out a first treatment on the surface of the 7-8 months of plant nutrition growth vigorous period, and the irrigation quantity is increased to wash salt; harvesting suaeda salsa and feed corn in the late 10 months to prepare silage rich in plant salt;
in the next year, the gentle slope (2) is improved in partition: dividing a salting area (5) and a suitable agricultural area (4), wherein the salting area (5) is a gentle slope land and a dry salt discharging pit (6) which are 15m below a dividing line (3) and calculated according to a critical depth of the submerged water level returning salt of 3m and a gradient of 10 degrees, and the suitable agricultural area (4) is from above the dividing line (3) to the top of the slope;
planting a salt green manure and salt-tolerant forage grass in a suitable agriculture area (4): the method comprises the steps of (1) carrying out drip irrigation under a parallel contour ridging film, wherein the ridge width is 50cm, the ridge height is 20cm, the ridge distance is 30cm, sowing 1 row of feed corn and 1 row of sweet clover on the film, leaving high stubble corn to harvest silage, crushing corn stubble and sweet clover by a threshing machine, and carrying out rotary tillage and returning to the field;
salting area (5): planting suaeda salsa, arranging drip irrigation belts according to parallel contour lines with the interval of 0.6m, and broadcasting the suaeda salsa along the drip irrigation belts; immediately irrigating after sowing, wherein the irrigation is carried out 1 time every 2 days in the emergence period until the wetting peak reaches the center line of two adjacent drip irrigation belts; supplementing water when soil humidity is 15% after seedling stage, and controlling water filling amount at 150m each time 3 /hm 2 The method comprises the steps of carrying out a first treatment on the surface of the 7-8 months of plant nutrition growth vigorous period, and the irrigation quantity is increased to wash salt; harvesting suaeda salsa and feed corn in the late 10 months to prepare silage rich in plant salt;
third year: cotton is planted in the agricultural area (4), and the parallel contour lines are integrated by ridging, drip irrigation tape laying, film covering and sowing by a cotton planter; planting salted vegetables in a salting area (5), performing drip irrigation on the salted vegetables in parallel with a contour line, sowing a salted Suaeda salsa, and picking the salted vegetables for fresh vegetables in a manner of Miao Gaoyao cm and 15cm after leaving stubbles, wherein the salted vegetables can be picked for multiple times before flowers;
after salt absorption-salt leaching, salt green fertilizer land-salt leaching, pioneer crop land-salt leaching are improved for 3 years, the farm area (4) can be used for achieving high and stable yield by carrying out conventional crop rotation; the salination area (5) selects halophyte rotation according to the diving backwater range to carry out continuous desalination cultivation of soil;
and (3) constructing a dry salt discharge capacity and drainage area:
d. alkali discharging ditches are built along the slope direction at intervals of 150m, the alkali discharging ditches are parallel to the slope surface, and the depth is 2m; digging a dry salt discharging pit (6) at the bottom of the slope, wherein the depth is 3 meters, collecting and discharging the salt water in an alkali ditch, and the salt water can be returned to surrounding saline soil to form a saline soil agriculture mode of recycling halophytes, the saline soil and the salt water;
building a wind-proof sand-fixation forest maintenance ecological system:
e. fresh water pond forest belt: selecting native desert plants, perpendicular to the main wind direction, and drip-irrigating mixed-planting populus euphratica and elaeagnus angustifolia at intervals of 3 meters along slopes and banks from the front edge of a reservoir (1);
a dry salt discharging pit (6) is a forest belt: according to the salt tolerance and drought resistance of succulent salt firewood plants, a salt claw, a salt spike wood, a bristle tamarix chinensis and a haloxylon forest belt are built in a dry salt discharging pit (6) from inside to outside, each bandwidth is 5m, the interval is 3m, wind prevention, sand fixation, salt reduction and soil improvement are carried out, and the ecological system diversity of a salting area (5) and a farm-oriented area (4) is maintained.
The invention relates to a method for transforming desert soil in a natural geological process for simulating the occurrence of saline alkali in arid regions, which is characterized by comprising the following steps:
in order to construct a suitable farmland and a windproof sand-fixation barrier, a suitable farmland area, a saline soil improvement area and a slope bottom dry salt discharge area are constructed by means of fresh water and halophytes for sloping fields and ecology according to the critical depth of submerged return salt. Providing a water head for the high-order fresh water pond; the sloping field topography and the drip irrigation system provide driving force for water and salt transportation; salt transfer of halophytes, green manure of halophytes, 3-5 rotation of pioneer crops, and cultivation of farm areas with high and stable yield; the fresh water pool is impervious, the water surface is covered, and the desert plant wind-proof forest prevents the ineffective loss of fresh water; the saline water in the dry salt discharging area at the bottom of the slope, the saline soil area and the halophyte forest belt form a recyclable saline soil agricultural system. Provides a technical scheme for preventing and controlling the degradation of natural oasis, comprehensively utilizing natural resources of water and soil, protecting the environment and restoring ecology.
Aiming at the problems of land salt returning and abandoned cultivation after the southern cultivation of the weapons in Xinjiang, and serious production and ecological problems of natural oasis degradation, sand storm, sand lifting and floating dust weather hazard, the natural geological process of salt and alkali occurrence in arid regions is simulated, the oasis agro-cultivation experience is absorbed, ecological water is guided, and a high-level reservoir is built on the desert soil around the oasis to form a 'light water tower' water head; the soil of the plough layer is improved by doping sand and applying decomposed organic fertilizer again because of the construction of gentle slopes; dividing a suitable agriculture region and a salinization region by a critical depth of the submerged return salt, and improving gentle slope soil in sections by utilizing ridge culture, drip irrigation under a film and classified halophyte rotation to change the spatial-temporal distribution of salt; the alkali ditch and the dry salt pit are repaired and discharged, and the drip irrigation planting of the sloping field is combined to drive the soil water salt to be collected to the slope bottom containing and discharging area; the halophyte wind-proof sand-fixing forest is built, the evaporation of fresh water is reduced, the salt is reduced, the soil is improved, the vegetation is reconstructed, and an ecological system is maintained. The zoning system of the sweet soil region, the periodic salt returning saline soil region and the dry salt discharging and containing region is formed, so that a suitable farmland is built, desert vegetation is restored, and demonstration is provided for creating sustainable farmland, reconstructing and restoring the wind-proof and sand-fixing ecological barrier of the oasis in arid regions.
Drawings
FIG. 1 is a schematic plan view of the invention, wherein 1, a reservoir; 2. gentle slope land; 3. a dividing line; 4. a suitable agriculture area; 5. a salting area; 6. and (5) discharging salt pits in a dry way.
Detailed Description
Examples
In 1999-2021, the invention performs desert soil modification test on the periphery of 33 groups and 31 groups of oasis of second army groups produced and constructed in Xinjiang:
building a gentle slope land:
a. selecting desert soil around oasis, and constructing 10 by means of machinery according to topography ° Slowly sloping field 2, mixing 20% of sand with 40cm of slope surface according to volume percentage, uniformly turning over and harrowing, applying 3000kg of decomposed cow and sheep manure per mu of rotary tillage, and carrying out permeable cultivation layer matrix improvement;
building a high-level reservoir on the slope top:
b. building 1 impounding reservoir 1 with the length of 300m multiplied by the width of 100m multiplied by the depth of 1.5m on the 2 slope tops of gentle slope lands per 300 mu, and paving a composite geomembrane on the whole pool disc of the impounding reservoir 1; the water is stored in the flood-driving period, the water is supplied by seasonal runoff ecological water, 1/3 of the water surface of the water storage tank 1 is covered with the connected carbonized bamboo chips, and the carbonized bamboo chips are pulled and moved along with seasons or sunlight so as to reduce ineffective evaporation;
planting on gentle slope land in a zonal manner:
c. the gentle slope land 2 is planned to be a strip field with the length of 300 meters and the width of 150 meters;
the first year, halophytes move salt: laying drip irrigation belts according to parallel contour lines with the interval of 0.6m, and broadcasting the suaeda salsa along the drip irrigation belts; immediately irrigating after sowing, wherein the irrigation is carried out 1 time every 2 days in the emergence period until the wetting peak reaches the center line of two adjacent drip irrigation belts; supplementing water when soil humidity is 15% after seedling stage, and controlling water filling amount at 150m each time 3 /hm 2 The method comprises the steps of carrying out a first treatment on the surface of the 7-8 months of plant nutrition growth vigorous period, and the irrigation quantity is increased to wash salt; harvesting suaeda salsa and feed corn in the late 10 months to prepare silage rich in plant salt;
in the second year, the gentle slope land 2 is improved in a partition way: dividing a salting area 5 and a suitable agricultural area 4, wherein the salting area 5 is a gentle slope land and a dry salt discharging pit 6 which are 15m below a dividing line 3, and the suitable agricultural area 4 is from above the dividing line 3 to the top of the slope, calculated according to a critical depth of the salt returning of the diving level of 3m and a gradient of 10 ℃;
planting salt green manure and salt-tolerant forage grass in the farm area 4: the method comprises the steps of (1) carrying out drip irrigation under a parallel contour ridging film, wherein the ridge width is 50cm, the ridge height is 20cm, the ridge distance is 30cm, sowing 1 row of feed corn and 1 row of sweet clover on the film, leaving high stubble corn to harvest silage, crushing corn stubble and sweet clover by a threshing machine, and carrying out rotary tillage and returning to the field;
salting area 5: planting suaeda salsa, arranging drip irrigation belts according to parallel contour lines with the interval of 0.6m, broadcasting the suaeda salsa along the drip irrigation belts, immediately irrigating after the broadcasting, and 1 time of irrigation every 2 days in the emergence period, wherein the irrigation is carried out until a wetting peak reaches the center line of two adjacent drip irrigation belts; supplementing water when soil humidity is 15% after seedling stage, and controlling water filling amount at 150m each time 3 /hm 2 The method comprises the steps of carrying out a first treatment on the surface of the 7-8 months of plant nutrition growth vigorous period, and the irrigation quantity is increased to wash salt; harvesting suaeda salsa and feed corn in the late 10 months to prepare silage rich in plant salt;
third year: cotton is planted in the farm area 4, and the parallel contour lines are integrated by ridging, drip irrigation tape laying, film covering and sowing by a cotton planter; planting salted vegetables in the salting area 5, performing drip irrigation on the salted vegetables in parallel with a contour line, sowing a salted Suaeda salsa, and picking the salted vegetables for fresh vegetables in a manner of Miao Gaoyao cm and 15cm after leaving stubbles, wherein the salted vegetables can be picked for multiple times before flowers;
after the improvement of salt absorption-salt leaching, salt green fertilizer land-salt leaching and pioneer crop prepared land-salt leaching for 3 years, the agricultural area 4 can be used for achieving high and stable yield by implementing conventional crop rotation; the salination area 5 selects halophyte rotation according to the diving backwater range to carry out continuous desalination cultivation of soil;
and (3) constructing a dry salt discharge capacity and drainage area:
d. alkali discharging ditches are built along the slope direction at intervals of 150m, the alkali discharging ditches are parallel to the slope surface, and the depth is 2m; digging a dry salt discharging pit 6 at the bottom of the slope, wherein the depth is 3m, collecting and discharging the salt water in an alkali discharging ditch, and the salt water can be returned to surrounding saline soil to form a saline soil agriculture mode of recycling halophytes, the saline soil and the salt water;
building a wind-proof sand-fixation forest maintenance ecological system:
e. fresh water pond forest belt: selecting native desert plants, and vertically erecting a main wind direction, and drip-irrigating mixed-planting populus euphratica and elaeagnus angustifolia at intervals of 3 meters along slopes and banks from the front edge of a reservoir 1;
6 forest belts of a dry salt discharging pit: according to the salt tolerance and drought resistance of succulent salt firewood plants, a salt claw, a salt spike wood, a bristle tamarix chinensis and a haloxylon forest belt are built from inside to outside in a dry salt discharging pit 6, each bandwidth is 5m, the interval is 3m, wind prevention, sand fixation, salt reduction and soil improvement are carried out, and the ecological system diversity of a salting area 5 and a suitable agriculture area 4 is maintained.
According to the method disclosed by the invention, the desert soil transformation test results show that: the saline-alkali plant salt absorption-salt leaching in 2019 and saline-alkali green fertilizer land-salt leaching in 2020 are carried out in the suitable farmland area, the cotton in 2021 is obtained to obtain the yield of 280-350 kg/mu of the middle-ground farmland, and the desalting development target of the desert soil to the fertile farmland is achieved through the rotation of the saline-alkali plants. In 2019-2021, the coverage of the suaeda salsa in a saline soil area each year reaches more than 80 percent; the coverage of the oasis barrier-vegetation reconstruction area is increased from 30% in 2019 to 65% in 2021, and the vegetation coverage is improved year by year with the development of arbor shrubs and development of biodiversity. The ecological water guided by manpower is reasonably utilized, saline soil resources are scientifically developed, the vegetation coverage of the desert is increased, and a middle-high-yield farmland is created.
Claims (1)
1. A method for transforming desert soil by simulating natural geological process of salt and alkali occurrence in arid regions is characterized by comprising the following steps:
building a gentle slope land:
a. selecting desert soil around oasis, mechanically constructing a 10-degree gentle slope (2) according to the topography, mixing 20% of sand with 40cm of slope surface according to the volume percentage, uniformly turning over and raking, applying 3000kg of decomposed cattle and sheep manure per mu of rotary tillage, and carrying out permeable cultivation layer matrix improvement of fertilizer;
building a high-level reservoir on the slope top:
b. building 1 impounding reservoir (1) with the length of 300m, the width of 100m and the depth of 1.5m on the slope top of a gentle slope (2) per 300 mu, and paving a composite geomembrane on the whole pool disc of the impounding reservoir (1); the water is stored in the flood-driving period of the rest work, the water is supplemented by seasonal runoff ecological water, 1/3 of the water surface of the water reservoir (1) is covered with the carbonized bamboo chips which are connected with each other, and the carbonized bamboo chips are pulled and moved along with seasons or sunlight;
planting on gentle slope land in a zonal manner:
c. the gentle slope land (2) is planned to be a strip field with the length of 300m and the width of 150 m;
the first year, halophytes move salt: laying drip irrigation belts according to parallel contour lines with the interval of 0.6m, and broadcasting the suaeda salsa along the drip irrigation belts; immediately irrigating after sowing, wherein the irrigation is carried out 1 time every 2 days in the emergence period until the wetting peak reaches the center line of two adjacent drip irrigation belts; supplementing water when soil humidity is 15% after seedling stage, and controlling water filling amount at 150m each time 3 /hm 2 The method comprises the steps of carrying out a first treatment on the surface of the 7-8 months of plant nutrition growth vigorous period, and the irrigation quantity is increased to wash salt; harvesting suaeda salsa in the late 10 months and preparing silage rich in plant salt from feed corns planted by local farmers;
in the next year, the gentle slope (2) is improved in partition: dividing a salting area (5) and a suitable agricultural area (4), wherein the salting area (5) is a gentle slope land and a dry salt discharging pit (6) which are 15m below a dividing line (3) and calculated according to a critical depth of the submerged water level returning salt of 3m and a gradient of 10 degrees, and the suitable agricultural area (4) is from above the dividing line (3) to the top of the slope;
planting a salt green manure and salt-tolerant forage grass in a suitable agriculture area (4): the method comprises the steps of (1) carrying out drip irrigation under a parallel contour ridging film, wherein the ridge width is 50cm, the ridge height is 20cm, the ridge distance is 30cm, sowing 1 row of feed corn and 1 row of sweet clover on the film, leaving high stubble corn to harvest silage, crushing corn stubble and sweet clover by a threshing machine, and carrying out rotary tillage and returning to the field;
salting area (5): planting suaeda salsa, arranging drip irrigation belts according to parallel contour lines with the interval of 0.6m, broadcasting the suaeda salsa along the drip irrigation belts, immediately irrigating after the broadcasting, and 1 time of irrigation every 2 days in the emergence period, wherein the irrigation is carried out until a wetting peak reaches the center line of two adjacent drip irrigation belts; supplementing water when soil humidity is 15% after seedling stage, and controlling water filling amount at 150m each time 3 /hm 2 The method comprises the steps of carrying out a first treatment on the surface of the 7-8 months of plant nutrition growth vigorous period, and the irrigation quantity is increased to wash salt; harvesting suaeda salsa and feed corn in the late 10 months to prepare silage rich in plant salt; third year: cotton is planted in the agricultural area (4), and the parallel contour lines are integrated by ridging, drip irrigation tape laying, film covering and sowing by a cotton planter; planting salted vegetables in a salting area (5), drip-irrigating and sowing salted Suaeda salsa in parallel with contour lines, picking fresh vegetables for 15cm after Miao Gaoyao cm stubble, and making fresh vegetables before flowersPicking for multiple times;
after salt absorption-salt leaching, salt green fertilizer land-salt leaching, pioneer crop land-salt leaching are improved for 3 years, the farm area (4) can be used for achieving high and stable yield by carrying out conventional crop rotation; the salination area (5) selects halophyte rotation according to the diving backwater range to carry out continuous desalination cultivation of soil;
and (3) constructing a dry salt discharge capacity and drainage area:
d. alkali discharging ditches are built along the slope direction at intervals of 150m, the alkali discharging ditches are parallel to the slope surface, the depth is 2m, a dry salt discharging pit (6) is dug at the bottom of the slope, the depth is 3m, the salt water of the alkali discharging ditches is collected, and the salt water can be poured back into surrounding saline soil, so that a saline soil agriculture mode for recycling halophytes, the saline soil and the salt water is formed;
building a wind-proof sand-fixation forest maintenance ecological system:
e. fresh water pond forest belt: selecting native desert plants, and perpendicular to the main wind direction, and performing drip irrigation mixed planting of populus euphratica and elaeagnus angustifolia at intervals of 3 meters along the front edge of a reservoir (1) and along slopes and banks;
a dry salt discharging pit (6) is a forest belt: according to the salt tolerance and drought resistance of succulent salt firewood plants, a salt claw, a salt spike wood, a bristle tamarix chinensis and a haloxylon forest belt are built in a dry salt discharging pit (6) from inside to outside, each bandwidth is 5m, the interval is 3m, wind prevention, sand fixation, salt reduction and soil improvement are carried out, and the ecological system diversity of a salting area (5) and a farm-oriented area (4) is maintained.
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| CN104082031A (en) * | 2014-07-30 | 2014-10-08 | 中国科学院新疆生态与地理研究所 | Arid region heavily-salted original soil afforesting method |
| CN106817945A (en) * | 2017-02-23 | 2017-06-13 | 新疆农业科学院经济作物研究所 | The method that South Sinkiang oasis water head site periphery desert quickly becomes good farmland |
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| JP4367107B2 (en) * | 2003-11-26 | 2009-11-18 | 株式会社マキノグリーン | Vegetation base on flooded slope and greening method of flooded slope |
| CN204817451U (en) * | 2015-06-05 | 2015-12-02 | 亿利资源集团有限公司 | Saline soil reclamation system |
| CN205694138U (en) * | 2016-04-28 | 2016-11-23 | 上海市环境工程设计科学研究院有限公司 | A kind of sloping field type salt-soda soil collection rain desalinization of soil by flooding or leaching system |
| CN206529652U (en) * | 2016-12-02 | 2017-09-29 | 中铁二院工程集团有限责任公司 | A kind of weak saline soil area non-fragment orbit embankment structure of rich salt |
| AU2021100295A4 (en) * | 2021-01-18 | 2021-04-15 | Institute Of Coastal Agriculture, Hebei Academy Of Agriculture And Forestry Sciences | Economical triune method for construction of vegetation in severely saline-alkali land |
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| CN104082031A (en) * | 2014-07-30 | 2014-10-08 | 中国科学院新疆生态与地理研究所 | Arid region heavily-salted original soil afforesting method |
| CN106817945A (en) * | 2017-02-23 | 2017-06-13 | 新疆农业科学院经济作物研究所 | The method that South Sinkiang oasis water head site periphery desert quickly becomes good farmland |
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