CN105393666A - Saline land improving method - Google Patents
Saline land improving method Download PDFInfo
- Publication number
- CN105393666A CN105393666A CN201510946074.9A CN201510946074A CN105393666A CN 105393666 A CN105393666 A CN 105393666A CN 201510946074 A CN201510946074 A CN 201510946074A CN 105393666 A CN105393666 A CN 105393666A
- Authority
- CN
- China
- Prior art keywords
- saline
- improvement method
- soil
- deck
- alkali land
- 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.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
Abstract
The invention provides a saline land improving method comprising the following steps of deep ploughing, in which a salt separation layer is formed in a place no less than 40cm under the ground to prevent upward movement of underground water containing high salt content. With the salt separation layer in a deep layer under the saline land ground, upward movement of the underground water can be prevented, so the underground water cannot enter most crop root growth areas while carrying large amount of salt; and economic crops or grains can be planted and the saline land can be gradually improved.
Description
Technical field
The present invention relates to a kind of soil improvement method, specifically, the present invention be more particularly directed to a kind of saline and alkali land improvement method.
Background technology
Saline land is a kind of salt aggregation, refers to that salinity contained inside soil has influence on the normal growth of crop.Various saline-alkali soil is all formed under certain natural conditions, and its essence formed mainly various ease of solubility salt does redistributing of horizontal direction and vertical direction on ground, thus salinity is built up at upper soll layer.Affect the principal element that saline-alkali soil formed to have: weather conditions, geographical conditions, the soil texture and underground water, river and extra large water mitigation, cultivation management improper.
For how to improve saline land, industry has research more, is roughly divided into following a few class:
One, water conservancy improves, the irrigation and drainage system of Erecting and improving, accomplish to fill with, row separately, strengthen water management, strictly control groundwater level, by flushings of pouring water, draw flood and warp, the salinity in continuous drip washing and eliminating soil.
Two, agrotechnique improves, and fills out soil moved in improve the original, lid grass, turns over silts, Gai Sha, applying organic manure etc. and improve soil constituent and structure, enhancing soil moisture monitoring, acceleration salt leaching by deep plough, leveling land, add.
Three, biological modification, plants and turns over green manure herbage, straw-returning, uses bacterial manure, plants salt-tolerant plant, afforestation etc., increase soil fertility, improvement soil structure, and improves field microclimate, reduces evaporation from topsoil, suppresses the accumulation of salt in the surface soil.
Four, chemical modifying, applies the modifying agent such as gypsum, black alum to alkaline earth, alkali soil, sodium solonchak, reduces or eliminates soil alkali and divide, improvement soil physico-chemical property.Various measure should note comprehensive use, more will suit measures to local conditions, and just can attain the results expected.
Analyze known, current improvement saline land method is more, although also occurred by improvement soil structure, and then the method in improvement saline land, but (soil texture thickness can affect the speed of soil capillary water motion and height all not pay attention to the important origin cause of formation that the soil texture and this saline land of underground water formed.If underground water salt content is higher, soil hollow billet is flourishing, so just easily forms saline land).And long-term observation shows, current alkaline land improving all exists that improvement cost high, cycle is long, take effect the defect such as slow.
Summary of the invention
The object of the present invention is to provide a kind of saline and alkali land improvement method, with more economical, fast mode realize alkaline land improving.
To achieve these goals, the invention provides following technical scheme:
A kind of saline and alkali land improvement method, it comprises the following steps: deep ploughing; The degree of depth being no less than 40cm below earth's surface forms one deck every salt deposit, so that the underground water avoiding salt content high to move.
Preferably, described is destroy the laminate structure impelling the soil capillarity tubular construction that underground water moves every salt deposit.
Preferably, the described thickness every salt deposit is no less than 3cm.
Preferably, described is the compacting soil layer of one deck densification every salt deposit.
Preferably, described every salt deposit be the crushing straw layer that one deck is soft.
Preferably, the step forming described compacting soil layer comprises: during arable land, at cultivated plough through afterwards, with suppression device, by the soil compaction at cultivated plough rear.
Preferably, described suppression device comprises press wheel, and is driven by described cultivated plough.
Preferably, the step forming described crushing straw layer comprises: pulverize Soil Straw, or evenly lay one deck crushing straw on earth's surface; During arable land, with ploughing plough, the stalk of pulverizing is ploughed under below earth's surface.
Preferably, the step forming described crushing straw layer comprises: during arable land, at cultivated plough through afterwards, and even spreading one deck stalk in the groove at cultivated plough rear.
Analyze known, the present invention forms one every salt deposit by deep-level location below earth's surface, saline land, stop on underground water and move, make underground water cannot carry a large amount of salinity and enter most crops root growth region, thus can various crop be planted, if use and coordinate other alkaline land improving technology that saline land will be made thoroughly to be improved gradually continuously for many years again.。
Accompanying drawing explanation
Fig. 1 is the saline land profile after the invention process;
Fig. 2 is the structural representation implementing alkaline land improving device of the present invention;
The cultivated plough that Fig. 3 is the device of alkaline land improving shown in Fig. 2, the location diagram (overlooking) of press wheel;
Fig. 4 is the side-looking structural representation of the suppression device of the device of alkaline land improving shown in Fig. 2;
The decomposition texture schematic diagram (overlooking) that Fig. 5 is the balance weight assembly of the device of alkaline land improving shown in Fig. 2;
The decomposition texture schematic diagram (master looks) that Fig. 6 is balance weight assembly shown in Fig. 5;
Fig. 7 is for installing the plan structure schematic diagram of the cultivated plow system of alkaline land improving device shown in multiple Fig. 2.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details.
In order to improve saline land, make it to be applicable to plantation cereal crops etc., as Fig. 1, when the present invention deep ploughs to saline land 10, the degree of depth L1 being no less than 40cm below earth's surface forms one deck every salt deposit 20, so that the underground water avoiding salt content high to move.Should, every salt deposit 20 for the salinity of isolating underground water and carrying and top root system of plant, prevent crop root from contacting excessive salinity.By arranging isolation structure, the mode realizing the flowing of isolation salinity is a lot, and in the present invention, be the laminate structure of spoiled soil hollow billet structure every salt deposit 20, in saline land 10, soil capillarity tubular construction just makes underground water moves just.
Further, in the present invention, every salt deposit 20 for thickness L2 is no less than the compacting soil layer of the densification of 3cm.In order to realize this consolidation effect, during arable land, at cultivated plough through afterwards, with suppression device, by the soil compaction at cultivated plough rear.
Form above-mentioned compacting soil layer in order to economical, quick, the invention provides a kind of alkaline land improving device, as shown in Figure 2, this alkaline land improving device comprises frame 5, ploughs plough 1, suppresses device.In other embodiments, suppressing device also can for ramming kind equipment.
Preferably, frame 5 is a rod-like structure, such as a rectangular tube.Plough the below that plough 1 is installed on frame 1 front portion, for plowing, its tilling depth should be no less than 40cm.Suppression device comprises support, press wheel 2 etc., is installed on below frame 5, is positioned at cultivated plough 1 rear.Support is for installing press wheel 2 and connection frame 5.Press wheel 2 for heavy saline land of rolling after cultivated plough 1 is turned over, and forms the compacting soil layer of one deck densification.Because press wheel 2 should form the weight effect to soil, therefore, press wheel 2 should by making such as metal, rock, concrete.As Fig. 3, press wheel 2 roll the arable land width that width equals cultivated plough 1, also be, after cultivated plough 1 opens saline land 10, Formation Depth reaches the groove of 40cm, and press wheel 2 rolls and mistake from this groove, because press wheel 2 weighs tens jin, hundreds of jin (selecting according to soil property), thus by channel bottom compacting, fine and close compacting soil layer can be formed.
Preferably, in the support of suppression device, bottom is the lower frame 211 in inverted U-shape structure, and top is the upper frame 212 in rod-like structure, and the middle part of lower frame 211 is fixed in the lower end of upper frame 212.The two ends of press wheel 2 are articulated with in lower frame 211, and such as an axle passes press wheel 2 along its axis, and lower frame 211 is connected with the two ends of this axle.
Upper frame 212 is connected to frame 5.Preferably, upper frame 212 upper end movably through the through hole (not shown) in frame 5, and upper frame 212 is also arranged with spring 4, and the upper end of spring 4 is supported in frame 5, with slowing down vibration.Further, upper frame 212 top of sheathed spring 4 is tightened, external diameter diminishes, and form a neck 213, the step place at this neck 213 is supported in the lower end of spring 4, and upper end is supported at frame 5 lower surface.
In order to increase stability, above-mentioned alkaline land improving device is also provided with the connecting rod 3 of inclination, and the lower end of connecting rod 3 is articulated with lower frame 211, and the upper end thereof of connecting rod 3 is in the downside of frame 5.
Conveniently adjust the pressure that press wheel 2 bears, support can also arrange multiple counterweight, and counterweight is removable installed on support.Such as shown in Fig. 5, Fig. 6, counterweight comprises the first assembly 71, second assembly 72, removably connect between first assembly 71 and the second assembly 72, ring-type is formed after the first assembly 71, second assembly 72 combines, can be sheathed on the upper frame 212 of support, so just can change the pressure that press wheel 2 is subject to fast.
Further, first assembly 71, the vertical view of the second assembly 72 all takes the shape of the letter U, and the upper surface of the first assembly 71 is provided with multiple deep hole 710, second assembly 72 comprises the main body 721 of U-shaped, cushion block 722 below main body 721, main body 721 lower surface arranges multiple projection 720, when the first assembly 71, when second assembly 72 combines, main body 721 covers on the first assembly 71, cushion block 722 and the first assembly 71 uniform thickness, projection 720 inserts in deep hole 710, thus form a ring-type, be set on upper frame 212, and the first assembly 71 is combined from the both sides of upper frame 212, second assembly 72, therefore very convenient.
As Fig. 7, in order to improve ploughing capacity, alkaline land improving device shown in Fig. 2 can combinationally use, form a cultivated plow system, and be arranged on a bogie 6 to multiple alkaline land improving device 101,102,103 oblique arrangement, adjacent alkaline land improving device: alkaline land improving device 101 and alkaline land improving device 102, alkaline land improving device 102 and alkaline land improving device 3, cultivated plough side overlap, that is between adjacent alkaline land improving device, do not leave any space, prevent part soil from omitting, not ploughing.
Preferably, bogie 6 is a leg-of-mutton frame structure, and simple, firm, in the figure 7, the body of rod of the leg-of-mutton frame structure left and right sides all can be installed, fixing above-mentioned alkaline land improving device.The body of rod of upside then can be connected with tractor.
When utilizing the deep ploughing of the alkaline land improving device shown in Fig. 2 saline land, ploughing plough 1 digs on the right side of it by soil, form a banded deep trench, press wheel 2 rolls from this deep trench, original soil capillarity tubular construction destroys by huge weight, bottom this deep trench, form solid, fine and close compacting soil layer, thus prevent from underground water from carrying on salinity moving.If soil is comparatively dry or other reasons, is comparatively difficult to realize solid, fine and close compacting soil layer, then can increases one or more groups counterweight.If the own wt of press wheel is designed to very large, so in any soil texture, drive the tractor power of its movement just comparatively large, increase energy consumption.
In order to be formed every salt deposit 20 below earth's surface, saline land 10, of the present invention every salt deposit can also be the crushing straw layer that one deck is soft.The step forming this crushing straw layer comprises: pulverize Soil Straw, or evenly lay one deck crushing straw on earth's surface, then when ploughing, is ploughed under below earth's surface by the stalk of pulverizing with ploughing plough.The method may cause crushing straw in the process of ploughing under underground, the phenomenon such as to gather, uneven.Therefore, in other embodiments, when forming crushing straw layer, when ploughing, plough can also be ploughed through afterwards, cultivated plough rear with deep trench in even spreading one deck stalk.
In sum, the present invention, by spoiled soil hollow billet structure below earth's surface, saline land, forms one every salt deposit, underground water can be stoped to carry on salinity move, after reducing every the soil salt above salt deposit, this saline land can keep less salt for a long time, is applicable to plant growth.And transformation salinity ground of the present invention cost is low, instant effect, timeliness are long.
As known by the technical knowledge, the present invention can be realized by other the embodiment not departing from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, is not only.Within the scope of the present invention all or be all included in the invention being equal to the change in scope of the present invention.
Claims (9)
1. a saline and alkali land improvement method, is characterized in that, comprises the following steps:
Deep ploughing;
The degree of depth being no less than 40cm below earth's surface forms one deck every salt deposit, so that the underground water avoiding salt content high to move.
2. saline and alkali land improvement method according to claim 1, is characterized in that, described is destroy the laminate structure impelling the soil capillarity tubular construction that underground water moves every salt deposit.
3. saline and alkali land improvement method according to claim 1, is characterized in that, the described thickness every salt deposit is no less than 3cm.
4. saline and alkali land improvement method according to claim 1, is characterized in that, described is the compacting soil layer of one deck densification every salt deposit.
5. saline and alkali land improvement method according to claim 1, is characterized in that, described every salt deposit be the crushing straw layer that one deck is soft.
6. saline and alkali land improvement method according to claim 4, is characterized in that, the step forming described compacting soil layer comprises:
During arable land, at cultivated plough through afterwards, with suppression device, by the soil compaction at cultivated plough rear.
7. saline and alkali land improvement method according to claim 6, is characterized in that, described suppression device comprises press wheel, and is driven by described cultivated plough.
8. saline and alkali land improvement method according to claim 5, is characterized in that, the step forming described crushing straw layer comprises:
Pulverize Soil Straw, or evenly lay one deck crushing straw on earth's surface;
During arable land, with ploughing plough, the stalk of pulverizing is ploughed under below earth's surface.
9. saline and alkali land improvement method according to claim 5, is characterized in that, the step forming described crushing straw layer comprises:
During arable land, at cultivated plough through afterwards, even spreading one deck stalk in the groove at cultivated plough rear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510946074.9A CN105393666B (en) | 2015-12-16 | 2015-12-16 | Saline and alkali land improvement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510946074.9A CN105393666B (en) | 2015-12-16 | 2015-12-16 | Saline and alkali land improvement method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105393666A true CN105393666A (en) | 2016-03-16 |
| CN105393666B CN105393666B (en) | 2018-03-09 |
Family
ID=55459724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510946074.9A Expired - Fee Related CN105393666B (en) | 2015-12-16 | 2015-12-16 | Saline and alkali land improvement method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105393666B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107580817A (en) * | 2016-07-08 | 2018-01-16 | 南京农业大学 | A kind of salt-soda soil stalk cultivates improvement new method every salt |
| CN108496453A (en) * | 2018-03-19 | 2018-09-07 | 山东农业大学 | A kind of salt-soda soil agricultural crop straw bilayer returning to the field modification method |
| CN108934262A (en) * | 2018-09-25 | 2018-12-07 | 爱土工程环境科技有限公司 | A kind of method of alkaline land soil desalination |
| CN112825640A (en) * | 2021-03-03 | 2021-05-25 | 上海交通大学 | Flue gas desulfurization gypsum salt back-flowing resistant layer and coastal reclamation saline-alkali land salt back-flowing resistant method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3094257B2 (en) * | 1992-08-08 | 2000-10-03 | 信越化学工業株式会社 | Salt accumulation inhibitor for house soil |
| CN101322470A (en) * | 2008-07-25 | 2008-12-17 | 北京林业大学 | Coast saline-alkali soil forestation method |
| CN102037805A (en) * | 2010-09-29 | 2011-05-04 | 中国科学院南京土壤研究所 | Method for controlling salt and saving water of nutritional soil for planting crops on mudflat saline-alkali land |
| CN102550159A (en) * | 2011-10-21 | 2012-07-11 | 中国农业科学院农业资源与农业区划研究所 | Method and system for controlling salt of saline-alkali soil |
| CN202524736U (en) * | 2011-10-21 | 2012-11-14 | 中国农业科学院农业资源与农业区划研究所 | Saline-alkali land salt controlling and restraining system |
| CN103329658A (en) * | 2013-06-21 | 2013-10-02 | 河海大学 | Sectional three-dimensional structure for fast desalting and soil improvement of saline-alkali soil of new tidal marsh reclamation area |
-
2015
- 2015-12-16 CN CN201510946074.9A patent/CN105393666B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3094257B2 (en) * | 1992-08-08 | 2000-10-03 | 信越化学工業株式会社 | Salt accumulation inhibitor for house soil |
| CN101322470A (en) * | 2008-07-25 | 2008-12-17 | 北京林业大学 | Coast saline-alkali soil forestation method |
| CN102037805A (en) * | 2010-09-29 | 2011-05-04 | 中国科学院南京土壤研究所 | Method for controlling salt and saving water of nutritional soil for planting crops on mudflat saline-alkali land |
| CN102550159A (en) * | 2011-10-21 | 2012-07-11 | 中国农业科学院农业资源与农业区划研究所 | Method and system for controlling salt of saline-alkali soil |
| CN202524736U (en) * | 2011-10-21 | 2012-11-14 | 中国农业科学院农业资源与农业区划研究所 | Saline-alkali land salt controlling and restraining system |
| CN103329658A (en) * | 2013-06-21 | 2013-10-02 | 河海大学 | Sectional three-dimensional structure for fast desalting and soil improvement of saline-alkali soil of new tidal marsh reclamation area |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107580817A (en) * | 2016-07-08 | 2018-01-16 | 南京农业大学 | A kind of salt-soda soil stalk cultivates improvement new method every salt |
| CN108496453A (en) * | 2018-03-19 | 2018-09-07 | 山东农业大学 | A kind of salt-soda soil agricultural crop straw bilayer returning to the field modification method |
| CN108934262A (en) * | 2018-09-25 | 2018-12-07 | 爱土工程环境科技有限公司 | A kind of method of alkaline land soil desalination |
| CN112825640A (en) * | 2021-03-03 | 2021-05-25 | 上海交通大学 | Flue gas desulfurization gypsum salt back-flowing resistant layer and coastal reclamation saline-alkali land salt back-flowing resistant method |
| CN112825640B (en) * | 2021-03-03 | 2023-09-15 | 上海交通大学 | Salt returning resistant layer of flue gas desulfurization gypsum and salt returning resistant method for coastal reclamation saline-alkali soil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105393666B (en) | 2018-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105393666A (en) | Saline land improving method | |
| CN102656968B (en) | Towed ridging trench digging plastic film mulch film limit earthing combine | |
| CN105981496A (en) | Combined deep scarification and land preparation machine | |
| CN104604385B (en) | The method on the whole ground of the poly-native anatonosis of arable land, a kind of slope counter-slope | |
| CN104396541B (en) | A kind of original soil long-acting modification method of arid biogeographic zone farmland salting stain | |
| CN203860001U (en) | Straw and subsoil mixing plough | |
| CN205727379U (en) | A kind of towed planting machine | |
| CN103477952A (en) | Agriculture water and soil improvement irrigation and drainage system | |
| CN105900546A (en) | Forced vibrating, air-pressure deep loosening, weeding and fertilizing machine | |
| Kooistra et al. | Subsoil compaction in Dutch marine sandy loams: loosening practices and effects | |
| CN202617635U (en) | All-purpose no-tillage sowing machine | |
| CN202068718U (en) | Deep-loosening plough for cultivated lands | |
| CN105532106B (en) | Alkaline land improving device | |
| CN206042696U (en) | A kind of electrichydraulic control subsoiler | |
| CN107079625A (en) | A kind of subsoiling rotary tillage combine | |
| CN203951735U (en) | A kind of convertible plough of ploughing deeply | |
| CN103493693A (en) | Method for determining furrow-ridge proportion suitable for furrow-ridge irrigation | |
| CN105850238A (en) | Electric-hydraulic control type subsoiler | |
| CN207167014U (en) | A kind of saline and alkaline cotton field earth's surface gathers native tie ridger | |
| CN206350306U (en) | A kind of aerofoil profile shovels blade hack type subsoiler | |
| CN102246652A (en) | Corn ditch interchanged planting method | |
| CN105766103A (en) | Micro-ridge full film-mulching and banking machine | |
| CN205232716U (en) | Pneumatic dark pine fertilizer distributor | |
| CN202635242U (en) | Trailed ridging, furrowing, film-mulching and film edge-earthing combination operation machine | |
| CN206686539U (en) | Plough rotation Combined ditching compaction apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180309 Termination date: 20181216 |