CN105080949A - Method for restoring magnesium polluted soil through paper mulberries - Google Patents
Method for restoring magnesium polluted soil through paper mulberries Download PDFInfo
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- CN105080949A CN105080949A CN201410208788.5A CN201410208788A CN105080949A CN 105080949 A CN105080949 A CN 105080949A CN 201410208788 A CN201410208788 A CN 201410208788A CN 105080949 A CN105080949 A CN 105080949A
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Abstract
The invention relates to a polluted soil plant restoring technology, in particular to a method for restoring magnesium polluted soil through paper mulberries. Particularly, the paper mulberries are planted in the magnesium polluted soil, and magnesium in the polluted soil is absorbed and used through roots, so that the magnesium polluted soil is restored. According to the method, novel varieties of plant resources are developed for plant restoring of the magnesium polluted soil in the soil, and a good way for being rich is provided; by using the paper mulberries for restoring the magnesium polluted soil, the method is simple to operate, small in work amount, capable of not damaging physicochemical properties of the soil, free of secondary pollution and capable of obtaining good ecological, social and economic benefits while treating the magnesium polluted soil.
Description
Technical field
The present invention relates to phytoremediation technology of polluted soil, specifically a kind of method utilizing paper mulberry to repair magnesium contaminated soil.
Background technology
The exploitation of mineral resources, provide various material and the energy to the mankind, and also bring many environmental problems, soil contamination problem is exactly an outstanding problem in mining activities simultaneously.Magnesium is the valuable source in the fields such as metallurgy, building materials, chemical industry, light industry, farming and animal husbandry, and the magnesite reserves of China occupy first place in the world, and mainly concentrate on Haicheng and Dashiqiao.Magnesite is in exploitation and calcination, and a large amount of dust of generation cause severe contamination to the air of locality, soil, ecological environment.The change of the soil physico-chemical property that polluted by magnesite dust causes, forest and farmland fertility around mining area are sharply declined, add the toxic action of excessive magnesium, make that the crops such as corn, soybean, Chinese sorghum are expediently remaining green when it is due to become yellow and ripe, late-maturing, the underproduction, hillside fields vegetation is rare, bring heavy damage to agricultural and environment, mining area rural economy causes heavy losses.For the pollution that magnesite dust settling causes soil, except reinforcement soot emissions control, soil polluted by magnesite dust is administered to the great attention of repairing and more and more causing academia, Government and enterprise circle, administer very urgent with the task of reparation.
The soil remediation of magnesium Polluted area and reparation, scholars propose different opinions and opinion.Liu Qi and Liang Huifeng suggestion adopts dilution method, the up and down physical method such as soil layer transformation approach and soil moved in improve the original to improve magnesium contaminated soil.Effectively can improve the harmful effect of magnesium to soil by the spatial distribution, the reduction content of magnesium that artificially improve magnesium in soil, reach the effect of putting things right once and for all.But Polluted area area is large, at substantial manpower and materials, and constructional difficulties, implement difficulty large.Peripheral doses method is only applicable to serious pollution and repairs urgent place.
Phytoremediation refers to the polluter in the extraction effect removal soil utilizing plant, namely by repeating plantation and gather in the crops plant the pollutant levels in soil are reduced to acceptable level.Both at home and abroad in the phytoremediation of heavy metal and organic pollution soil, make large quantity research, therefore the technology that can be used for administering heavy-metal contaminated soil is a lot, research for alkaline-earth metal contaminated soil remediation is very few, for the repairing and treating also rarely seen report of soil polluted by magnesite dust.The present invention analyzes and have studied the feature of soil polluted by magnesite dust, uses for reference the effect of Phytoremediation of Soils Contaminated by Heavy Metals, tests the method for magnesium contaminated soil remediation, has inquired into the feasibility of repairing soil polluted by magnesite dust with magaphanerophytes-paper mulberry.
Summary of the invention
The object of this invention is to provide a kind of method utilizing magaphanerophytes-paper mulberry to repair magnesium contaminated soil.
For achieving the above object, the present invention adopts technical scheme to be:
A kind of method utilizing paper mulberry to repair magnesium contaminated soil, paper mulberry is planted in magnesium contaminated soil, by root system, magnesium in contaminated soil is absorbed, magnesium in absorption and accumulation contaminated soil, along with paper mulberry constantly grows, and it is transported to aerial part in a large number, reduce the content of magnesium in soil, and then magnesium contaminated soil is repaired.
By described paper mulberry, it is Moraceae (Moracea), and paper mulberry belongs to (Broussonetia), and belong to perennial magaphanerophytes, paper mulberry formal name used at school is (BroussonetiaPapyrifera (L) Vent).
Broussonetia papyrifera seedlings high for the 10-25cm survived after slow seedling is transplanted and is being subject in magnesium contaminated soil.The described broussonetia papyrifera seedlings annual 4-5 month transplants, and a strain planted by every 1.5-2 rice, and line-spacing is 2 meters.Growth period, soil moisture remained on the 60%-80% of field capacity.
Described slow seedling first moves in untainted soil by paper mulberry seedling, and water permeable for the first time, soil moisture remains on 80% of field capacity, and growth temperature is 25-30 DEG C, grows to 10-25cm through 25-30 days broussonetia papyrifera seedlings, stand-by.
Plant in the present invention is paper mulberry, for Moraceae (Moracea), paper mulberry belongs to (Broussonetia), belong to perennial magaphanerophytes, paper mulberry formal name used at school is (BroussonetiaPapyrifera (L) Vent), the vitality of paper mulberry is very vigorous, is easy to survive, and does not need to carry out special management in its whole growth course.And repair herbaceous plant used with routine and compare, its natural propagation growth is fast, biomass is large, belongs to perennial magaphanerophytes, stake can be stayed to send out branch, do not need annual plantation.Through experimental study, prove that it mainly has enriched character to magnesium.The present invention takes full advantage of the enriched character of paper mulberry to magnesium, by its seedling replanting extremely by magnesium contaminated soil, and the magnesium in absorption and accumulation contaminated soil, and it is transported to aerial part in a large number, reduce the content of magnesium in soil.The phytoremediation simultaneously also polluted for magnesium in soil develops new plant resource variety.The features such as it is fast that paper mulberry has growth, and strong adaptability is drought-resistant barren, and the strong disease and pest of strong stress resistance sprout tiller strength is few.Also have and conserve water and soil, check winds and fix drifting sand, the environmental protect that purifies air promotes the function of the ecological balance.Leaf, fruit, root, milk can be used as medicinal raw material, and bark and limb are the sources of the high-grade paper using of China.Be a kind of special fibrous nonwood forest trees, be widely used in papermaking, weave cotton cloth, stock raising, medicine, the field such as afforestation and light industry.Therefore plant paper mulberry energetically, rational exploitation and utilization Broussonetia papyrifera has important realistic meaning to human production activity.
The advantage that the present invention has:
1. the present invention adopts Culture basin to carry out growth experiment to seedling, and the inventive method can be applicable to small-sized outdoor and simulation laboratory test, and simple, convenient, can control environment condition, makes research become possibility.
2. environmental condition is multiple and controlled.The inventive method can provide the environmental condition such as different temperatures, different illumination conditions, different humidity, the different growth times of plant.Also can be used in variety classes, variable concentrations pollutant, different plant variety to pollutant absorb, accumulation and migration study mechanism.
3. can prevent from causing secondary pollution to surrounding environment.The Culture basin employing opaque plastics material that the present invention is used, can pollute surrounding environment by preventing pollution thing.
4. the inventive method is easy to operate, can the situation of clear observation of plant growth course root and cauline leaf part.According to upgrowth situation collected specimens at any time, analysis can be carried out and measures and research.
5. the inventive method can according to the characteristic of plant, the validity studying pollutant and the impact be poisoned plant, and result of study can be the toxic action of reduction pollutant to plant and provides theoretical foundation, for pollution administration soil provides effective measures and technology.
Accompanying drawing explanation
Fig. 1 is content of magnesium comparison diagram in paper mulberry root, stem and leaf under different magnesium density treatment conditions in the embodiment of the present invention.
Fig. 2 is the initial comparison diagram with 60 days height afterwards of paper mulberry under different magnesium density treatment conditions in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail.
The present situation of first known soil polluted by magnesite dust and the harm to plant.The alkali metal be rich in magnesite dust or alkaline-earth metal are alkaline matter, and these materials excess accumulation in soil, causes soil to alkalize.At distance stope 1-2km, distance calcining plant 200-300m place, detecting top layer skinning pH is 9.85, and described skinning is exactly that dust forms fine and close hardening layer at soil surface knot layer, and main component is MgO and MgCO
3.Soil pH below skinning also has rising, and wherein 1-5cmpH is 8.48,20-40cmpH is 8.0.The reason causing pH to raise mainly magnesium in soil content raises, when magnesium solvable in soil exceedes certain value, plant to be subject to injury in various degree each period of growing, magnesium and calcium are the necessary middle amount nutrients of plant growth, plant directly affects it to the absorption of magnesium, calcium and grows, Mg
2+to Ca
2+antagonism can be produced.Excessive Mg
2+existence, make plant to Ca
2+absorption be affected, cause that development of plants is bad even cannot be grown.
Embodiment 1
Experiment place is located in ecology station, Chinese Academy of Sciences Shenyang, and this station is located in the central area of lower Base of Liaohe Plain, is about 35km apart from Shenyang City, belongs to the moistening continental climate in warm temperate zone half.Adopt the method for potted plant simulation magnesium contaminated soil, soil collecting is in this experiment centre.The pH of soil is 6.8, and organic matter is 2.64%, and full carbon content is 17.8gkg-1, and total nitrogen content is 1.1gkg-1, and full phosphorus is 0.35gkg-1.
It is air-dry that the soil gathered is put in Indoor Natural, ground, mix after one week.Every basin claims 3240g uncontaminated soil, adds 360g magnesium slag dirt (or ore, ore picks up from magnesite mining area mining junkyard), described magnesium slag dirt (breeze is MgO, or is ore), is mixed, load in basin, make magnesium in soil content 10%.Strain 1 strain determined by the every basin of broussonetia papyrifera seedlings, and described paper mulberry seedling is purchased from Dalian Zhongzhi Environment Biotechnology Co., Ltd..First through slow seedling, described slow seedling is moved in untainted soil by seedling, cultivates in warmhouse booth, and temperature is 25-30 DEG C, waters 1-2 time weekly according to soil moisture actual conditions, guarantees that soil moisture remains on 80% of field capacity, grows 30 days.Then be transplanted in above-mentioned basin, add 1000 water.Put into illumination greenhouse to cultivate.Light week is 16h/8h, and room temperature is 25 DEG C.Every basin is regularly sprayed water weekly 400ml.Cultivate after 60 days in magnesium contaminated soil, empirically design plants and soil sampling analysis respectively, measure content of magnesium in plant.As can be seen from Figure 1, when magnesium in soil content 10%, paper mulberry root, stem and leaf content are respectively 0.323g/kg, 0.479g/kg and 1.349g/kg, can find out content of magnesium leaf > stem > root in paper mulberry.Plant height is found out also than initially increasing 5.2cm in Fig. 2.
Embodiment 2
Experiment place is with embodiment 1.
It is air-dry that the soil gathered is put in Indoor Natural, ground, mix after one week.Every basin claims 2520g uncontaminated soil, adds 1080g magnesium slag dirt (magnesium slag dirt is with embodiment 1), is mixed, and loads in basin.Strain 1 strain determined by the every basin of broussonetia papyrifera seedlings, and described paper mulberry seedling is purchased from Dalian Zhongzhi Environment Biotechnology Co., Ltd..First through slow seedling, described slow seedling first moves in untainted soil, cultivates in warmhouse booth, and temperature is 25-30 DEG C, waters 1-2 time weekly according to soil moisture actual conditions, guarantees that soil moisture remains on about the 60-80% of field capacity, grows 30 days.Then be transplanted in basin, add 1000 water.Put into illumination greenhouse to cultivate.Light week is 16h/8h, and room temperature is 25 DEG C.Regularly spray water weekly 400ml.Cultivate after 60 days in magnesium contaminated soil, empirically design plants and soil sampling analysis respectively, measure content of magnesium in plant.As can be seen from Figure 1, when magnesium in soil content 30%, paper mulberry root, stem and leaf content are respectively 0.468g/kg, 0.742g/kg and 3.812g/kg, can find out content of magnesium leaf > stem > root in paper mulberry.Plant height is found out also than initially increasing 10.1cm in Fig. 2.
Embodiment 3
Experiment place is with embodiment 1.
It is air-dry that the soil gathered is put in Indoor Natural, ground, mix after one week.Every basin claims 1800g uncontaminated soil, adds 1800g magnesium slag dirt (magnesium slag dirt is with embodiment 1), is mixed, and loads in basin.Strain 1 strain determined by the every basin of broussonetia papyrifera seedlings, and described paper mulberry seedling is purchased from Dalian Zhongzhi Environment Biotechnology Co., Ltd..First through slow seedling, described slow seedling is first moved in untainted soil by seedling, cultivates in warmhouse booth, and temperature is 25-30 DEG C, waters 1-2 time weekly according to soil moisture actual conditions, guarantees that soil moisture remains on 80% of field capacity, grows 30 days.Then be transplanted in basin, add 1000 water.Put into illumination greenhouse to cultivate.Light week is 16h/8h, and room temperature is 25 DEG C.Regularly spray water weekly 400ml.Cultivate after 60 days in magnesium contaminated soil, empirically design plants and soil sampling analysis respectively, measure content of magnesium in plant.As can be seen from Figure 1, when magnesium in soil content 50%, paper mulberry root, stem and leaf content are respectively 0.623g/kg, 0.932g/kg and 4.219g/kg, can find out content of magnesium leaf > stem > root in paper mulberry.Plant height is found out also than initially increasing 8.3cm in Fig. 2.
Claims (5)
1. utilize paper mulberry to repair a method for magnesium contaminated soil, it is characterized in that: paper mulberry is planted in magnesium contaminated soil, by root system, magnesium in contaminated soil is absorbed, and then magnesium contaminated soil is repaired.
2. by the method utilizing paper mulberry to repair magnesium contaminated soil according to claim 1, it is characterized in that: by described paper mulberry, it is Moraceae (Moracea), paper mulberry belongs to (Broussonetia), belong to perennial magaphanerophytes, paper mulberry formal name used at school is (BroussonetiaPapyrifera (L) Vent).
3. by the method utilizing paper mulberry to repair magnesium contaminated soil according to claim 1, it is characterized in that: broussonetia papyrifera seedlings high for the 10-25cm survived after slow seedling is transplanted and is being subject in magnesium contaminated soil.
4. by the method utilizing paper mulberry to repair magnesium contaminated soil according to claim 3, it is characterized in that: described slow seedling first moves in untainted soil by paper mulberry seedling, water permeable for the first time, soil moisture remains on 80% of field capacity, growth temperature is 25-30 DEG C, 10-25cm is grown to through 25-30 days broussonetia papyrifera seedlings, stand-by.
5. by the method utilizing paper mulberry to repair magnesium contaminated soil according to claim 2, it is characterized in that: the broussonetia papyrifera seedlings that the described 10-25cm survived after slow seedling is high is transplanted and is being subject in magnesium contaminated soil.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108124703A (en) * | 2017-12-20 | 2018-06-08 | 甘肃省农业科学院土壤肥料与节水农业研究所 | One kind is used for heavy-metal contaminated soil plantlet of transplant method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5928406A (en) * | 1993-06-04 | 1999-07-27 | Salt; David E. | Conversion of metal oxidation states by phytoreduction |
| WO2004089831A2 (en) * | 2003-04-04 | 2004-10-21 | Cornell Research Foundation, Inc. | Stable self-organizing plant-organism systems for remediating polluted soils and waters |
| US7268273B2 (en) * | 1995-06-06 | 2007-09-11 | The University Of Maryland | Recovering metals from soil |
| CN102085527A (en) * | 2009-12-02 | 2011-06-08 | 中国科学院沈阳应用生态研究所 | Method for repairing heavy metal polluted soil by using cadmium hyper-accumulation plant lantana camara |
| CN102091715A (en) * | 2009-12-11 | 2011-06-15 | 中国科学院沈阳应用生态研究所 | Method for remediating oil-contaminated soil by using gaillardia aristata pursh flower plants |
-
2014
- 2014-05-16 CN CN201410208788.5A patent/CN105080949A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5928406A (en) * | 1993-06-04 | 1999-07-27 | Salt; David E. | Conversion of metal oxidation states by phytoreduction |
| US7268273B2 (en) * | 1995-06-06 | 2007-09-11 | The University Of Maryland | Recovering metals from soil |
| WO2004089831A2 (en) * | 2003-04-04 | 2004-10-21 | Cornell Research Foundation, Inc. | Stable self-organizing plant-organism systems for remediating polluted soils and waters |
| CN102085527A (en) * | 2009-12-02 | 2011-06-08 | 中国科学院沈阳应用生态研究所 | Method for repairing heavy metal polluted soil by using cadmium hyper-accumulation plant lantana camara |
| CN102091715A (en) * | 2009-12-11 | 2011-06-15 | 中国科学院沈阳应用生态研究所 | Method for remediating oil-contaminated soil by using gaillardia aristata pursh flower plants |
Non-Patent Citations (4)
| Title |
|---|
| 杨丹等: "菱镁矿粉尘污染土壤机理及其植物修复", 《菱镁矿粉尘污染土壤机理及其植物修复》 * |
| 童方平等: "锑矿区构树富集重金属的特性研究", 《中国农学通报》 * |
| 赖发英等: "重金属污染土壤生态工程修复的试验研究", 《农业工程学报》 * |
| 黄长干等: "德兴铜矿铜污染状况调查及植物修复研究", 《江西农业大学学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108124703A (en) * | 2017-12-20 | 2018-06-08 | 甘肃省农业科学院土壤肥料与节水农业研究所 | One kind is used for heavy-metal contaminated soil plantlet of transplant method |
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Application publication date: 20151125 |