CN103214321A - Method for adjusting and restoring seashore saline soil by brackish water - Google Patents
Method for adjusting and restoring seashore saline soil by brackish water Download PDFInfo
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- CN103214321A CN103214321A CN2013101906767A CN201310190676A CN103214321A CN 103214321 A CN103214321 A CN 103214321A CN 2013101906767 A CN2013101906767 A CN 2013101906767A CN 201310190676 A CN201310190676 A CN 201310190676A CN 103214321 A CN103214321 A CN 103214321A
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Abstract
The invention relates to the technical field of ecological restoration of coastal shoals and in particular relates to a method for adjusting and restoring seashore saline soil by brackish water. The method for adjusting and restoring the seashore saline soil by the brackish water comprises the following steps of: adding 2000kg-2600kg of phosphogypsum, 33m<3>-67m<3> of corn straws, 34m<3>-47m<3> of organic fertilizers, 200kg-300kg of high-activity humic acid and 200kg-300kg of zinc sulfate to every mu of soil after smoothing the soil; ploughing deeply for 30cm-35cm for sufficiently mixing the materials; uniformly irrigating underground brackish water with a degree of mineralization of not being more than 2g/l and a pH value of being 8.30-8.65 to the surface of the soil by adopting a drop-irrigation method, wherein the flow rate of a dripper is 0.5L per hour and the soil irrigation amount per mu is 190 m<3>-200m<3>. The method for adjusting and restoring seashore saline soil by brackish water not only can be used for adjusting the salt-alkali content of the soil, but also can be used for providing nutrient elements needed for the plant growth to improve the physical and chemical characteristics of the soil, so that the barren land of the coastal shoals reaches the soil environment which is suitable for the plant growth.
Description
Technical field
The present invention relates to coastal tidal ecological reestablishment field, specifically is the method that marine solonchak is repaired in a kind of slightly salty regulation and control.
Background technology
At present, the coastal tidal restoration of the ecosystem is " global problem " of generally acknowledging in the world, and the researcher of alkaline land improving aspect has carried out research practice for many years both at home and abroad, has also proposed some saline-alkali soil modifying agents or method, for example:
Publication number CN1346865A discloses a kind of efficient improver of salinized soil, and this modifying agent had both contained salinized soil improvement conventional materials such as sulphur, gypsum, organic peat and borax, contained the high molecular weight water soluble polymer that can activate these materials again.This matrix material can have the pH value that fast and effeciently reduces salinized soil and harmful salinity and can improve the soil texture and fertility new and improved dose.
Publication number CN1048212A discloses a kind of special purpose complex fertilizer for saline-alkali soil, it is the characteristic according to salt affected soil, with natural zeolite with contain organic and the mud coal of humic acids and an amount of nitrogenous, phosphoric fertilizer mix, and added the trace element zinc of a small amount of plant-growth needs, and it is applied in the salt affected soil, can change Soil structure, harmful ion is to the harm of plant in the reduction soil, and can protect fertilizer, the effect of water conservation, general crop yield 15-30%.
Publication number CN1174872A relates to a kind of soil conditioner, it mainly adds water by poly-maleic acid, alkylbenzene sodium sulfate, zinc sulfate or copper sulfate and forms, and uses the present invention can make alkaline land improving become the arable land, and the alkali that desalts is effective, make the output high yield in saline and alkaline arable land, effect of increasing production is at 10-20%.
Publication number CN1854245A discloses a kind of improvement of vegetative salt alkaline land soil, it is characterized in that utilizing the harmless derivative phosphoric acid gypsum that produces in the secondary calcium phosphate production process, assist and execute agricultural crop straw, be affixed by the plain humic acids of a certain proportion of corps nutrient, borax, zinc fertilizer, the improvement salinized soil.Use this nutritive soil modifier, soluble salt content surpassed 1.0% soil after 1 year, and soil soluble salt content drops to 0.6-0.4%, and output of cotton is 45 kilograms of per mu yield gined cottons.
Application number 200810153822.8 is openly invented a kind of saline-alkali soil restoration agent, and it is made up of with the 60-70:25-35:1-4:3-6 weight ratio desulfurated plaster, natural organic matter, microorganism fertilizer and inorganic nutrients; The sulfate dihydrate calcium contents is more than 80% in the desulfurated plaster; Natural organic matter is made up of with the weight ratio of 1.0:0.93 the weathered coal and the peat composed of rotten mosses; Effective bacterial content is 2.0 hundred million/gram in the microorganism fertilizer; Inorganic nutrients is made up of with the weight ratio of 1.0:2.42:0.75 urea, calcium superphosphate and Repone K.Renovation agent of the present invention can reduce salinity and the basicity in the soil, also improves calcium and element sulphur for crop provides, and a large amount of nutritive elements such as nitrogen phosphorus potassium, makes the crop normal growth.
Application number 200910260179.3 discloses a kind of amendment of improveing the saltings, makes pulvis by sal epsom and calcium sulfate according to the mixed of 10-30:70-90.This amendment is obvious to adjusting salt affected soil pH value effect, and there is certain improving effect in the saltings.
Application number 201010160226.x discloses a kind of method of improving nutritive saline-alkali land soil, comprises ploughing deeply soil; Deep layer is used stalk; Sand is covered on the top layer, and this method can improve the saltings growth quality.
Above-mentioned known technology generally adopts physics, chemistry, biological method, reduce P in soil H value and reduce soil salt, though these methods all have certain effect to the improvement alkaline land soil, in certain zone the certain usefulness of generation is administered in saltings agriculture production and saltings, but the reparation research at marine solonchak is less, utilizes the technical study of slightly salty regulation and control marine solonchak salt alkali content not appear in the newspapers as yet.
Summary of the invention
Vegetation growth bottleneck problems such as the present invention is intended to solve coastal beach marine solonchak salt content height, pH value height, Soil structure is poor, nutrient content is low, and provide a kind of soil alkaline content of not only can regulating, and can provide required nutritive element for plant-growth, improve soil physical and chemical property, the method that marine solonchak is repaired in the slightly salty regulation and control that make the coastal tidal barren land reach the edatope of suitable plant-growth.
The technical scheme that the present invention solves described problem employing is:
The method that marine solonchak is repaired in a kind of slightly salty regulation and control, undertaken by following step:
A. after the land smoothing, by every mu of soil, apply phosphogypsum 2000～2600 kg, 33～67 cubic metres of maize straws, 33～47 cubic metres of fertilizers, high-activity humic acid 200～300 kg, zinc sulfate 200～300 kg, deep ploughing 30-35cm makes its thorough mixing;
B. adopt the drip irrigation method, the underground slightly salty with salinity≤2g/l, pH value 8.30～8.65 evenly waters soil surface, and the water dropper flow is 0.5L per hour, 190～200 cubic metres of every mu of soil irrigation amounts.
Further, be cut into 1.0～2.0cm pipe nipple before described maize straw applies.
Further, described phosphogypsum is the industrial waste desulfurated plaster, and main component is CaSO
4
Further, described fertilizer is cow dung or pig manure, organic content 〉=56%.
Further, organic butt 〉=56% of described high-activity humic acid, humic acids butt 〉=38%.
Adopt the present invention of technique scheme, compared with prior art, its outstanding effect is:
The present invention improves little ecologic structure of marine solonchak by applying the nutritional type marine solonchak renovation agent of being made up of maize straw, phosphogypsum, fertilizer, high-activity humic acid, zinc sulfate, improves soil nutrient content; Utilize the slightly salty pouring to apply the soil of nutritional type marine solonchak renovation agent, regulate marine solonchak salt content and pH value, marine solonchak, heavily saltedization soil are repaired and is the edatope of vegetation suitable growth.Warp is to the coastal marine solonchak repairing test in Cangzhou, Hebei, and the result shows that behind application the present invention, mud matter marine solonchak leaching speed is obviously accelerated, and Soil structure fluffs diffusing, and soil total salt content and pH value reduce, to the deleterious ion Na+ of plant-growth, Cl-, HCO
3 -Content reduces significantly, and useful ion increases, and soil nutrient elements N, P and organic content promote significantly.Concrete effect is as follows:
1. the influence to soil aggregate sees the following form.
Adopt the artificial sieve method of dividing to soil coacervate content analysis at different levels before and after handling, the result shows, before the reparation, the macrostructure content of 0.25mm is 13.15%,＜0. 25 mm microstructure content is 86.85%, the Soil structure extreme difference; After the reparation,〉the macrostructure content of 0.25mm is 49.55%, and＜0. 25 mm microstructure content is 50.45%, and microstructure reduces 41.91%, and macrostructure increases, and Soil structure changes obviously.
2. the influence to solonchak total salt content and pH value sees the following form.
The slightly salty that utilizes salinity 1.92g/l carries out the leaching test to the marine solonchak of using behind the nutritional type marine solonchak renovation agent, and the result shows that along with the increase of drip irrigation amount, the soil total salt content declines by a big margin, and P in soil H value is decline to some extent also; Desalinization of soil by flooding or leaching irrigation amount is with 190 side/mus, and salinity descends 83.69%, and PH reduces by 0.2 unit, when the drip irrigation amount reaches every mu 226 side, soil total salt content 0.51%, though contrast decline to some extent of salt content, pH value raises rapidly, reach the pH value that influences plant-growth, therefore, to the saline and alkaline drip washing of marine solonchak, irrigation amount can not be too high, with desalinization of soil by flooding or leaching irrigation amount 190 side/mus of the present invention, desalinization of soil by flooding or leaching best results.
3. the influence to the marine solonchak ion content sees the following form.
Marine solonchak Na
+, Cl
-Content is higher, uses behind the renovation agent by slightly salty pouring leaching, and the proportional generation of ionic group variation in various degree influences the harmful ion Na of plant-growth
+, Cl
-, HCO
3 -Content significantly reduces, and has reduced by 84.2%, 82.7%, 35.0% respectively; The ion content useful to plant-growth raises, wherein Ca
2+, Mg
2+, SO
4 2-Content has increased by 48%, 91.3%, 91.6% respectively.
4. the influence to soil nutrient elements content sees the following form.
After marine solonchak is repaired, soil nutrient elements N, P and the organic raising that all has in various degree, K decreases, and N improves 161.04%, 420%, 111.03%, has only the higher P element of content slightly to reduce.
Embodiment
The invention will be further described below in conjunction with embodiment, and purpose only is to understand better content of the present invention.
Embodiment 1:
Newly developed area, the Bohai Sea, Hebei (38 ° 27 ' 40 of north latitude ", 117 ° of 38 ' 26 ") marine solonchak of east longitude vegetation rehablitation project.Original soil: 30cm soil total salt content 2.86%, pH value 8.37.
1. after the prepartion of land, apply nutritional type marine solonchak repair materials: phosphogypsum 2000kg/ mu (desulfurated plaster, main component is CaSO, fertilizer plant buys), cow dung 34 side/mus (organic content 60%, pH value 7.69), contain high-activity humic acid (the west of Inner Mongolia illiteracy science, industry and trade group production of NPK, humic acids butt 38%, organic butt 56%) 250kg/ mu, maize straw 33 side/mus, zinc sulfate (ZnSO
4) 200kg evenly spreads fertilizer over the fields, and ploughs 30cm.
2. slightly salty drip irrigation: carry out the waterways, lay the drip irrigation facility, carry out drip irrigation with underground slightly salty, dripping irrigation water salinity 1.97g/l, irrigation quantity is controlled 200 side/mus, and drip irrigation speed is 0.5L per hour.After drip irrigation was finished, soil salt reached 0.35%, and pH value drops to 8.02.Placed 5 days, and carried out salt-tolerant plant and plant, 2 years living seedlings 100% of the dish surviving rate that nourishes heart, matrimony vine shoot survival percent 95%, taraxacum seeding ratio 80% ， Han dish transplanted seedling surviving rate 100%.
Embodiment 2:
Prince wife Cao pasture, Hebei ecological city (39 ° 6 ' 12 of north latitude ", 118 ° of 27 ' 06 ") mud of east longitude matter marine solonchak vegetation is repaired.Original soil: 30cm soil total salt content 3.2%, pH value 8.5.
1. 3～April, apply nutritional type marine solonchak repair materials: phosphogypsum 2600kg/ mu, pig manure 47 side/mu (organic content 56%, pH value 7.69), high-activity humic acid (cover science, industry and trade group and produce by west of Inner Mongolia, humic acids butt 40%, organic butt 60%) 200kg/ mu, maize straw 45 side/mus, zinc sulfate (ZnSO
4) 300kg evenly spreads fertilizer over the fields, and ploughs 35cm.
2. utilize the underground water drip irrigation, dripping irrigation water salinity 1.2g/l, irrigation quantity control 200 side/mus, drip irrigation speed is 0.5L per hour.After drip irrigation was finished, the soil total salt content dropped to 0.45%, and pH value drops to 8.02.
October investigation, the annual strand of the plantation salt tolerant vegetation surviving rates 100% such as dish, bamboo willow, bristle Chinese tamarisk, lotus certain herbaceous plants with big flowers that nourish heart, vegetation coverage is more than 60%.
Claims (5)
1. the slightly salty regulation and control method of repairing marine solonchak is characterized in that it is undertaken by following step:
A. after the land smoothing, by every mu of soil, apply phosphogypsum 2000～2600 kg, 33～67 cubic metres of maize straws, 33～47 cubic metres of fertilizers, high-activity humic acid 200～300 kg, zinc sulfate 200～300 kg, deep ploughing 30-35cm makes its thorough mixing;
B. adopt the drip irrigation method, the underground slightly salty with salinity≤2g/l, pH value 8.30～8.65 evenly waters soil surface, and the water dropper flow is 0.5L per hour, 190～200 cubic metres of every mu of soil irrigation amounts.
2. the method that marine solonchak is repaired in slightly salty regulation and control according to claim 1 is characterized in that, is cut into 1.0～2.0cm pipe nipple before described maize straw applies.
3. the method that marine solonchak is repaired in slightly salty regulation and control according to claim 1 is characterized in that described phosphogypsum is the industrial waste desulfurated plaster, and main component is CaSO
4
4. the method that marine solonchak is repaired in slightly salty regulation and control according to claim 1 is characterized in that described fertilizer is cow dung or pig manure, organic content 〉=56%.
5. the method that marine solonchak is repaired in slightly salty regulation and control according to claim 1 is characterized in that organic butt 〉=56% of described high-activity humic acid, humic acids butt 〉=38%.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2544381C1 (en) * | 2013-09-09 | 2015-03-20 | Эльвира Батыревна Дедова | Method of rice cultivation on saline lands |
| CN105474823A (en) * | 2014-09-18 | 2016-04-13 | 无锡市绿化建设有限公司 | Drainage salt-washing method for green belt of heavy saline-alkali land development region in coastal area |
| CN106045613A (en) * | 2016-05-27 | 2016-10-26 | 扬州大学 | Organic fertilizer special for soil of tidal flat and saline-alkaline land and preparation method and application thereof |
| CN106068752A (en) * | 2016-07-15 | 2016-11-09 | 山东胜伟园林科技有限公司 | A kind of desulfurated plaster coordinates the method for straw improvement alkaline land soil |
| CN106134558A (en) * | 2016-06-30 | 2016-11-23 | 山东胜伟园林科技有限公司 | A kind of root control salt method using bagasse filter layer and the application in salt-soda soil Herba Scutellariae Barbatae is planted thereof |
| CN106134559A (en) * | 2016-06-30 | 2016-11-23 | 山东胜伟园林科技有限公司 | A kind of root control salt method using shell filter layer and the application in salt-soda soil midget crabapple is planted thereof |
| CN106165566A (en) * | 2016-06-30 | 2016-11-30 | 山东胜伟园林科技有限公司 | A kind of root control salt method using zeolite filter layer and the application in salt-soda soil winged euonymus is planted thereof |
| CN107155595A (en) * | 2017-06-06 | 2017-09-15 | 合肥助航生态农业科技有限公司 | A kind of implantation methods of shed for pepper |
| CN107258267A (en) * | 2017-06-06 | 2017-10-20 | 合肥助航生态农业科技有限公司 | A kind of implantation methods of plastic tent cucumber |
| CN108077029A (en) * | 2018-01-04 | 2018-05-29 | 中国农业大学 | The brackish water subsurface drip irrigation cultivation method of salt-soda soil oil certain herbaceous plants with big flowers |
| CN108752127A (en) * | 2018-04-28 | 2018-11-06 | 天津市德宇生物工程技术有限公司 | A kind of biomass castoff soil conditioner in improvement salt-soda soil |
| CN114271063A (en) * | 2022-01-06 | 2022-04-05 | 中国科学院东北地理与农业生态研究所 | Method for comprehensively improving saline-alkali soil by combining deep-buried straws and shallow-buried drip irrigation |
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Patent Citations (2)
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2544381C1 (en) * | 2013-09-09 | 2015-03-20 | Эльвира Батыревна Дедова | Method of rice cultivation on saline lands |
| CN105474823A (en) * | 2014-09-18 | 2016-04-13 | 无锡市绿化建设有限公司 | Drainage salt-washing method for green belt of heavy saline-alkali land development region in coastal area |
| CN106045613B (en) * | 2016-05-27 | 2017-09-12 | 扬州大学 | A kind of beach saline-alkali ground soil fertilizer special for organic and its preparation method and application |
| CN106045613A (en) * | 2016-05-27 | 2016-10-26 | 扬州大学 | Organic fertilizer special for soil of tidal flat and saline-alkaline land and preparation method and application thereof |
| CN106134558A (en) * | 2016-06-30 | 2016-11-23 | 山东胜伟园林科技有限公司 | A kind of root control salt method using bagasse filter layer and the application in salt-soda soil Herba Scutellariae Barbatae is planted thereof |
| CN106134559A (en) * | 2016-06-30 | 2016-11-23 | 山东胜伟园林科技有限公司 | A kind of root control salt method using shell filter layer and the application in salt-soda soil midget crabapple is planted thereof |
| CN106165566A (en) * | 2016-06-30 | 2016-11-30 | 山东胜伟园林科技有限公司 | A kind of root control salt method using zeolite filter layer and the application in salt-soda soil winged euonymus is planted thereof |
| CN106068752A (en) * | 2016-07-15 | 2016-11-09 | 山东胜伟园林科技有限公司 | A kind of desulfurated plaster coordinates the method for straw improvement alkaline land soil |
| CN107155595A (en) * | 2017-06-06 | 2017-09-15 | 合肥助航生态农业科技有限公司 | A kind of implantation methods of shed for pepper |
| CN107258267A (en) * | 2017-06-06 | 2017-10-20 | 合肥助航生态农业科技有限公司 | A kind of implantation methods of plastic tent cucumber |
| CN108077029A (en) * | 2018-01-04 | 2018-05-29 | 中国农业大学 | The brackish water subsurface drip irrigation cultivation method of salt-soda soil oil certain herbaceous plants with big flowers |
| CN108752127A (en) * | 2018-04-28 | 2018-11-06 | 天津市德宇生物工程技术有限公司 | A kind of biomass castoff soil conditioner in improvement salt-soda soil |
| CN114271063A (en) * | 2022-01-06 | 2022-04-05 | 中国科学院东北地理与农业生态研究所 | Method for comprehensively improving saline-alkali soil by combining deep-buried straws and shallow-buried drip irrigation |
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| CN103214321B (en) | 2014-10-08 |
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