CN106489465B - Method for recovering leymus chinensis vegetation in severe northern saline-alkali soil - Google Patents
Method for recovering leymus chinensis vegetation in severe northern saline-alkali soil Download PDFInfo
- Publication number
- CN106489465B CN106489465B CN201610835380.XA CN201610835380A CN106489465B CN 106489465 B CN106489465 B CN 106489465B CN 201610835380 A CN201610835380 A CN 201610835380A CN 106489465 B CN106489465 B CN 106489465B
- Authority
- CN
- China
- Prior art keywords
- soil
- leymus chinensis
- ditch
- saline
- furrow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
Abstract
A method for restoring leymus chinensis vegetation in severe saline-alkali soil in the north relates to a method for restoring leymus chinensis vegetation. The invention aims to solve the technical problem that the native vegetation, namely the leymus chinensis, cannot be directly planted in the severe saline-alkali soil in the north at present, only a transplanting method is adopted, and the transplanting method needs continuous irrigation management in the later period, so that the large-area popularization and application of the leymus chinensis are restricted. The invention comprises the following steps: firstly, ditching with a plough; secondly, applying aeolian sandy soil into the ditches; thirdly, applying the leymus chinensis seeds on the aeolian sandy soil in the ditch; fourthly, applying aeolian sandy soil on the surfaces of the Chinese wildrye seeds in the ditches; fifthly, compacting the sand and wind in the ditch by using a compactor. The method of the invention has low cost, easy popularization and later economic benefit. The method is applied to the rapid recovery of the leymus chinensis vegetation in the saline-alkali soil.
Description
Technical Field
The invention relates to a method for restoring leymus chinensis vegetation.
Background
The current situation of foreign research: soil salinization is a worldwide problem (Szabolcs 1989), and since the beginning of the 20 th century, research on restoration and treatment of salinized soil has been in the history of hundreds of years (Qadir et al 2001). International saline-alkaline land treatment research mainly aims at farmland soil and treatment technology, on one hand, on the basis of the migration rule of water and salt in the saline-alkaline soil, physical ways such as raking, covering straws, arranging ditches and building ridges are adopted to reform the earth surface structure, improve water penetration, reduce water evaporation and block salt rise, or direct ditching, draining and washing salt are adopted to reduce surface soil salt and facilitate plant growth (Bakker et al.2010a, b); on the one hand, based on the chemical property of the salinized soil, calcium ions or other modifiers are used for replacing exchangeable sodium ions in the soil, so that the alkalization degree of the soil is reduced, and the commonly used modifiers comprise: soluble calcium salts such as calcium chloride and gypsum; sparingly soluble calcium salts, such as limestone, polymeric aluminum ferric sulfate, and the like (Armstong et al 1992; Mace et al 1999; Qadir et al 2001; Lebron et al 2002). The biological means is a new treatment technology, and the plant establishment capability of saline-alkali soil is improved mainly by introducing and breeding saline-alkali tolerant crops (Akhter et al 2004; Tripath et al 2005). Internationally, the major research institutes engaged in the breeding of saline-alkali tolerant plants are the Davis laboratories of the university of california, the united states saline soil laboratories, the indian central saline soil research institute, etc. (cheng pottery, 1993). These research institutions have cultivated several kinds of salt-tolerant wheat and rice and deeply studied the salt-tolerant mechanism of these crops. In addition to the above measures, fertilization in saline-alkali soil, addition of biochar, green manure, etc. to fertilize alkali has recently been widely used for saline-alkali soil treatment (Shaaban et al 2013; Srivastava et al 2014).
The current situation of domestic research: since the beginning of the 50 s of the 20 th century, China begins to research the recovery and treatment work of saline-alkali soil, and the treatment technology mainly comprises 3 aspects: (1) physical improvement: pressing alkali by sand, leveling soil, deeply ploughing and sunning upturned soil, loosening soil in time, covering surface layers, lifting terrain, changing soil in micro areas, irrigating and draining, storing fresh salt, irrigating and washing salt, and discharging salt underground; (2) chemical improvement: gypsum, phosphogypsum, calcium superphosphate, petroleum additives, fly ash, black alum, humic acid, peat, furfural residues, vinegar residues and the like; (3) biological improvement: planting trees and other salt-tolerant plants, and using organic fertilizers. The methods are mainly applied to severe salinization soil at first, and the improvement method has remarkable effect on mild or moderate degenerated soil. However, the saline-alkali grassland has a wide area, and economic benefits of remediation techniques are also considered, so that it is difficult to perform chemical remediation on a large area, and in recent years, ecological remediation is gradually developed by using a biological remediation method, for example: enclosing, straw cutting, biological covering and the like. Through applying ecosystem control principle, carry out ecological remediation to saline and alkaline grassland, resume the vegetation, improve soil structure, also be exactly with biological improvement as leading, combine physical improvement and chemical improvement method, utilize biological self to the adaptability of environment, progressively restore saline and alkaline grassland.
Various domestic research techniques are basically similar to the international saline-alkali grassland restoration techniques, but some domestic researchers also develop some techniques suitable for local areas according to local conditions by combining specific conditions of various areas. For example, the method is combined with a farming and pasturing staggered area in a pine and tender grass land, so that the straw resources are rich, and the degraded grassland is developed by straw cutting; covering straws, improving the soil microenvironment, and additionally sowing herbs such as Asteris chinensis, wild barley, tiger-tail grass and the like to improve the deteriorated grassland; and the deteriorated grassland is recovered by transplanting the leymus chinensis, however, the transplanting of the leymus chinensis requires late irrigation management, which restricts the large-area popularization and application of the technology. In the northeast, saline-alkali soil rice planting technology is developed in recent years, however, saline-alkali soil regions in the northeast are all in semiarid regions, the annual rainfall is only 300-400 mm, the annual water consumption for planting rice reaches 1600 mm, and the development of saline-alkali soil rice planting near a river channel has sustainability, however, most of the saline-alkali soil in the northeast is far away from the river channel, and the large-area planting of rice in the saline-alkali soil in the region can lead to the extreme reduction of underground water level and the exhaustion of water resources, thereby causing a series of ecological problems.
The saline-alkali grassland treatment technology in the northeast of China is in a breakthrough direction in the future, not only the effect of the technology but also the actual economic benefit are considered, ecological restoration is carried out according to local conditions and local resources, and a recovery technology with low cost, effective method and economic benefit is provided.
Disclosure of Invention
The invention provides a method for recovering leymus chinensis vegetation in a severe saline-alkali soil in the north, aiming at solving the technical problems that the original vegetation, namely leymus chinensis, cannot be directly planted in the severe saline-alkali soil in the north at present and can only be transplanted through a transplanting method, and the transplanting method needs continuous irrigation management in the later period, so that the large-area popularization and application of the leymus chinensis are restricted.
The method for recovering the leymus chinensis vegetation in the severe saline-alkali soil in the north is carried out according to the following steps:
firstly, a plurality of ditches are parallelly dug in the northern severe saline-alkali soil by using a plough, the cross sections of the ditches are inverted triangles, the width of the horizontal plane of each ditch is 5 cm-15 cm, and the depth of each ditch is 5 cm-15 cm;
secondly, the aeolian sandy soil within 1000m of the periphery of the severe saline-alkali soil in the step one is applied to the opened ditch until the distance from the highest position of the aeolian sandy soil to the horizontal plane is 2 cm;
thirdly, the leymus chinensis seeds are applied to the aeolian sandy soil in the ditch, and the application amount of the leymus chinensis seeds is 20 kg-40 kg per hectare of severe saline-alkali soil;
fourthly, applying aeolian sandy soil with the thickness of 2cm in the severe saline-alkali land area in the first step on the surface of the leymus chinensis seeds in the ditch;
fifthly, compacting the sand and wind in the ditch by using a compactor.
The land with the PH value of more than 8 is the severe saline-alkali soil.
According to the method, aeolian sandy soil is applied to plant the leymus chinensis, the cross section of the leymus chinensis is shown in figure 1, the aeolian sandy soil is arranged on the bottom layer, then leymus chinensis seeds are applied, the aeolian sandy soil with the thickness of 2 centimeters is covered on the uppermost layer, the original saline-alkali soil in the ditch is placed on two sides of the ditch to form a plateau, rainwater is intercepted, the humidity of the aeolian sandy soil is increased, and the germination of the leymus; the upper layer and the lower layer of the leymus chinensis seeds are aeolian sandy soil, and a proper environment is provided for the leymus chinensis seeds to germinate before soil salinity permeates.
The invention has the advantages that: aiming at the characteristic that the leymus chinensis can not be completed in the severe salinization soil only in the seed germination stage, a small amount of aeolian sandy soil is utilized to build a germination environment, then the characteristic of plant asexual propagation is utilized to carry out propagation, namely, a small amount of aeolian sandy soil is utilized to locally improve the soil, and the native vegetation is recovered in a large area through the asexual propagation of the leymus chinensis: firstly, the problem that the methods of transplanting the leymus chinensis and the like can not be realized in a large area on the grassland by subsequent irrigation and the like is avoided; secondly, the local resources with low cost, namely the aeolian sandy soil, are utilized, so that the method is easy to popularize.
The method of the invention is mainly characterized in that: low cost, easy popularization and later economic benefit.
1. The cost is low:
the method only needs 75-175 cubic soil (purchase and transportation cost 750-;
2. easy popularization:
the invention utilizes large machinery to carry the sandy soil, does not need later maintenance and does not depend on rainfall, and can be applied in large area; according to the method, the sandy soil (4 m high) of 1 hectare of land in the tourbillon crossing area is utilized to improve the saline-alkali soil of 400 hectare, and the yield can be recovered after the sandy soil in the tourbillon crossing area is moved and cultivated for 2 years; the planting technology is simple, easy to learn and capable of being popularized and applied in a large range;
3. later-stage economic benefits:
after the invention is built, 1-2 tons of leymus chinensis can be produced per hectare, the price of the leymus chinensis is 800 yuan/ton, and the later economic benefit is considerable.
Drawings
FIG. 1 is a schematic view of the present invention, where 1 is aeolian sandy soil, 2 is leymus chinensis seeds, 3 is saline-alkali soil, and 4 is furrows.
Detailed Description
The first embodiment is as follows: the embodiment is a method for recovering the guinea grass vegetation in the severe saline-alkali soil in the north, which is specifically carried out according to the following steps:
firstly, a plurality of ditches are parallelly dug in the northern severe saline-alkali soil by using a plough, the cross sections of the ditches are inverted triangles, the width of the horizontal plane of each ditch is 5 cm-15 cm, and the depth of each ditch is 5 cm-15 cm;
secondly, the aeolian sandy soil within 1000m of the periphery of the severe saline-alkali soil in the step one is applied to the opened ditch until the distance from the highest position of the aeolian sandy soil to the horizontal plane is 2 cm;
thirdly, the leymus chinensis seeds are applied to the aeolian sandy soil in the ditch, and the application amount of the leymus chinensis seeds is 20 kg-40 kg per hectare of severe saline-alkali soil;
fourthly, applying aeolian sandy soil with the thickness of 2cm in the severe saline-alkali land area in the first step on the surface of the leymus chinensis seeds in the ditch;
fifthly, compacting the sand and wind in the ditch by using a compactor.
The row spacing between each groove is set according to the actual situation.
The second embodiment is as follows: the present embodiment differs from the first embodiment in that: in the first step, the width of the horizontal plane of the ditch is 5cm, and the depth of the ditch is 5 cm. The rest is the same as the first embodiment.
The third concrete implementation mode: the present embodiment differs from the first embodiment in that: in the first step, the width of the horizontal plane of the ditch is 10cm, and the depth of the ditch is 10 cm. The rest is the same as the first embodiment.
The fourth concrete implementation mode: the present embodiment differs from the first embodiment in that: in the first step, the width of the horizontal plane of the ditch is 15cm, and the depth of the ditch is 10 cm. The rest is the same as the first embodiment.
The fifth concrete implementation mode: the present embodiment differs from the first embodiment in that: in the first step, the width of the horizontal plane of the ditch is 15cm, and the depth of the ditch is 15 cm. The rest is the same as the first embodiment.
The sixth specific implementation mode: the present embodiment differs from the first embodiment in that: the application amount of the leymus chinensis seeds in the third step is 20 kg/hectare of severe saline-alkali soil. The rest is the same as the first embodiment.
The seventh embodiment: the present embodiment differs from the first embodiment in that: the cross section of the groove in the step one is in an isosceles triangle shape, and the lengths of the cross sections of the two side walls of the groove are equal. The rest is the same as the first embodiment.
Claims (7)
1. A method for restoring leymus chinensis vegetation in a northern severe saline-alkali soil is characterized by comprising the following steps:
firstly, a plurality of ditches are parallelly dug in the northern severe saline-alkali soil by using a plough, the cross sections of the ditches are inverted triangles, the width of the horizontal plane of each ditch is 5 cm-15 cm, and the depth of each ditch is 5 cm-15 cm;
secondly, the aeolian sandy soil within 1000m of the periphery of the severe saline-alkali soil in the step one is applied to the opened ditch until the distance from the highest position of the aeolian sandy soil to the horizontal plane is 2 cm;
thirdly, the leymus chinensis seeds are applied to the aeolian sandy soil in the ditch, and the application amount of the leymus chinensis seeds is 20 kg-40 kg per hectare of severe saline-alkali soil;
fourthly, applying aeolian sandy soil with the thickness of 2cm in the severe saline-alkali land area in the first step on the surface of the leymus chinensis seeds in the ditch;
fifthly, compacting the aeolian sandy soil in the ditch by using a roller;
the bottom layer of the ditch is aeolian sandy soil, and then the leymus chinensis seeds are sown, the saline-alkali soil in the ditch is placed on two sides of the ditch to form a high platform, so that rainwater is intercepted, the humidity of the aeolian sandy soil is increased, and the germination of the leymus chinensis seeds is facilitated; the upper layer and the lower layer of the leymus chinensis seeds are aeolian sandy soil, and a proper environment is provided for the leymus chinensis seeds to germinate before soil salinity permeates.
2. The method of claim 1, wherein in step one the width of the furrow at the level of the water surface is 5cm and the depth of the furrow is 5 cm.
3. The method of claim 1, wherein in step one the furrow has a width of 10cm at the level of the furrow and a depth of 10 cm.
4. The method of claim 1, wherein the width of the furrow at the level of the first step is 15cm and the depth of the furrow is 10 cm.
5. The method of claim 1, wherein the width of the furrow at the level of the first step is 15cm and the depth of the furrow is 15 cm.
6. The method for recovering the leymus chinensis vegetation in the northern severe saline-alkali soil according to claim 1, wherein the application amount of the leymus chinensis seeds in the third step is 20 kg/hectare severe saline-alkali soil.
7. The method of claim 1, wherein the cross-section of the furrow of step one is isosceles triangle and the length of the cross-section of the two sidewalls of the furrow are equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610835380.XA CN106489465B (en) | 2016-09-20 | 2016-09-20 | Method for recovering leymus chinensis vegetation in severe northern saline-alkali soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610835380.XA CN106489465B (en) | 2016-09-20 | 2016-09-20 | Method for recovering leymus chinensis vegetation in severe northern saline-alkali soil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106489465A CN106489465A (en) | 2017-03-15 |
| CN106489465B true CN106489465B (en) | 2020-04-28 |
Family
ID=58290592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610835380.XA Active CN106489465B (en) | 2016-09-20 | 2016-09-20 | Method for recovering leymus chinensis vegetation in severe northern saline-alkali soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106489465B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106879358A (en) * | 2017-04-24 | 2017-06-23 | 中国科学院东北地理与农业生态研究所 | A kind of method for recovering legume in salt-soda soil |
| CN107047010A (en) * | 2017-04-24 | 2017-08-18 | 中国科学院东北地理与农业生态研究所 | It is a kind of to recover alkali thatch and the method for Puccinellia tenuiflora in salt-soda soil |
| CN114531993A (en) * | 2022-03-01 | 2022-05-27 | 青海省畜牧兽医科学院 | Method for improving saline-alkali soil by straw landfill and pasture mixed sowing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101536643A (en) * | 2009-04-24 | 2009-09-23 | 朱高升 | Saline and alkali land improvement method |
| CN102067756A (en) * | 2010-12-03 | 2011-05-25 | 中国科学院东北地理与农业生态研究所 | Method for building dry farmland by making ditch and filling sand on saline-alkali soil |
| CN102754559A (en) * | 2012-07-18 | 2012-10-31 | 东北师范大学 | Method for rapidly planting vegetation in saline-alkali bare land |
-
2016
- 2016-09-20 CN CN201610835380.XA patent/CN106489465B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101536643A (en) * | 2009-04-24 | 2009-09-23 | 朱高升 | Saline and alkali land improvement method |
| CN102067756A (en) * | 2010-12-03 | 2011-05-25 | 中国科学院东北地理与农业生态研究所 | Method for building dry farmland by making ditch and filling sand on saline-alkali soil |
| CN102754559A (en) * | 2012-07-18 | 2012-10-31 | 东北师范大学 | Method for rapidly planting vegetation in saline-alkali bare land |
Non-Patent Citations (1)
| Title |
|---|
| 覆沙改良科尔沁沙地_松辽平原交错区盐碱地与造田技术研究;周道玮等;《自然资源学报》;20110615(第6期);第910-918页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106489465A (en) | 2017-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105519274B (en) | A kind of integrated approach of extensive coastal new Climacteric symptoms farmland ecology exploitation | |
| CN104472052B (en) | A kind of engineering-chemical-biological-desalination water saving-information technology improvement saline land method | |
| CN102273335B (en) | Treatment and utilization method of muddy seashore saline soil | |
| CN103392487B (en) | Arid region saline-alkali soil biology improvement method | |
| CN102792846B (en) | Wheat-corn double cropping symbiotic cultivation method in moderate saline-alkali soil based on buried pipe drainage and salt elimination | |
| CN103262689A (en) | Coastal saline-alkali soil terrace type afforesting method for improvement of dredger fill | |
| CN102138491B (en) | Soil and ecological control method for coastal beaches | |
| CN101073807A (en) | Comprehensive improvement for salt farm field soil and vegetative cover | |
| CN107646225B (en) | Method for facility production of raw soil of coastal heavy saline-alkali soil | |
| CN107182341A (en) | A kind of beach saline land modification method | |
| CN106068754B (en) | The method of flour sand Muddy Bottoms strand tidal flat revegetation | |
| CN110073756A (en) | A kind of beach newly encloses tideland for cultivation the efficient modification method of farmland soil | |
| CN102687633A (en) | Chinese yam cultivation method | |
| CN109168391A (en) | A kind of method of iron tailings soil | |
| El-Ramady et al. | Management of Salt-Affected Soils: A Photographic Mini-Review | |
| CN109257987A (en) | Arid and semi-arid lands salt-soda soil dry type desalination and efficient technique of rainwater utilization scheme | |
| CN106922240A (en) | A kind of coastal saline-alkali soil cultivating layer quick desalination method and application | |
| CN106489465B (en) | Method for recovering leymus chinensis vegetation in severe northern saline-alkali soil | |
| CN107211785A (en) | It is a kind of that large area site preparation and the method for rice cultivation are carried out to desert area | |
| CN106879358A (en) | A kind of method for recovering legume in salt-soda soil | |
| CN104541641A (en) | Method of thinning, eliminating soil salt and increasing yield by arranging crushed ridge bind drain system | |
| CN104756731A (en) | Rice powder ridge dry soil seedling arranging ecological cultivation method | |
| CN103109616A (en) | Method for repairing water leakage of paddy field in secondary-stacking system coal mining subsidence ash and mudstone layer weathering area | |
| CN105875164A (en) | Method for no-tillage watermelon cultivation in Northern Jiangsu intertidal zone saline-alkali soil | |
| CN104067720B (en) | The restorative procedure in the empty damage paddy field, depression stable region of Coal Exploitation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |