CN106853458A - A kind of method of the low accumulation restoring cadmium polluted vegetable field soil of plantation supporting with enriching plant high - Google Patents

A kind of method of the low accumulation restoring cadmium polluted vegetable field soil of plantation supporting with enriching plant high Download PDF

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Publication number
CN106853458A
CN106853458A CN201510902860.9A CN201510902860A CN106853458A CN 106853458 A CN106853458 A CN 106853458A CN 201510902860 A CN201510902860 A CN 201510902860A CN 106853458 A CN106853458 A CN 106853458A
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China
Prior art keywords
cadmium
accumulation
low
enriching plant
soil
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Pending
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CN201510902860.9A
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Chinese (zh)
Inventor
史奕
迟光宇
李玲玲
宋玉芳
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Institute of Applied Ecology of CAS
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Institute of Applied Ecology of CAS
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Priority to CN201510902860.9A priority Critical patent/CN106853458A/en
Publication of CN106853458A publication Critical patent/CN106853458A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09CRECLAMATION OF CONTAMINATED SOIL
    • B09C1/00Reclamation of contaminated soil

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  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Cultivation Of Plants (AREA)

Abstract

The matching method with safe utilization, the method for specifically a kind of low accumulation restoring cadmium polluted vegetable field soil of plantation supporting with enriching plant high are repaired the present invention relates to cadmium pollution vegetable field soil.Low cadmium-accumulation kind crop and enriching plant high are alternately planted in cadmium pollution vegetable field soil to be repaired, and then while realizing heavy metals exceeding standard agricultural land soil safe utilization, reaches the purpose for cutting down Cadmium Pollution in Soils.The inventive method realizes the efficient utilization in the exceeded cadmium farmland in irrigated area under the premise of farmland occupation mode is not changed.

Description

A kind of method of the low accumulation restoring cadmium polluted vegetable field soil of plantation supporting with enriching plant high
Technical field
The matching method with safe utilization is repaired the present invention relates to cadmium pollution vegetable field soil, specifically
A kind of method of the low accumulation restoring cadmium polluted vegetable field soil of plantation supporting with enriching plant high.
Background technology
The northern area of China Wu Guan farmlands are widely distributed, and soil and crops are exceeded serious, and in view of soil Ground resource-constrained, it would be highly desirable to realize the safe and efficient utilization of irrigating region soil, but China lacks related at present Technology mode.At this stage with northern China irrigating region heavy metals exceeding standard farmland as object, for light moderate Heavy metals exceeding standard farmland, under the premise of crop production safety is ensured, screens and promotes suitable planting Low accumulation crop specie and kind;Supporting plantation super enrichment industrial crops, realize plant in situ simultaneously Repair.
The content of the invention
Present invention aim at providing, a kind of low accumulation is supporting with enriching plant high to plant restoring cadmium polluted dish The method of ground soil.
In order to realize above-mentioned purpose, the present invention use technical scheme for:
A kind of method of the low accumulation restoring cadmium polluted vegetable field soil of plantation supporting with enriching plant high, is treating Low cadmium-accumulation kind crop and enriching plant high are alternately planted in the cadmium pollution vegetable field soil of reparation, and then While realizing heavy metals exceeding standard agricultural land soil safe utilization, the purpose for cutting down Cadmium Pollution in Soils is reached.
Alternately plantation low cadmium-accumulation kind crop and the enriching plant high are to cultivate enriching plant high in advance Reduction topsoil soils cadmium content, low cadmium-accumulation kind crop, the low product of cadmium to be grown are then cultivated again During tired crop maturity, edible portion is reclaimed, and then realize the interplanting of crop.
The low accumulation kind crop is leaf vegetables Cd<0.2mg/kg (fresh weight), transfer ratio TF<1、 Concentration coefficient EF<1 and biomass be not remarkably decreased.Such as northern Chinese cabbage.
Enriching plant high is black nightshade.
Advantages of the present invention is with good effect:
The present invention screens the kind of heavy metal cadmium low absorption according to genotypic difference in plant species, makes Be adapted to be planted in exceeded agricultural land soil, the content of beary metal of its edible part reaches state food peace The requirement of full production standard, realizes the safe plant development of agricultural product;It is simultaneously supporting with enriching plant high The pollutant fluxes technology of plantation, realizes heavy metals exceeding standard agricultural land soil safe utilization;Wherein, Gao Fu Collection plant has certain biomass and economic worth;Simultaneously under the premise of farmland occupation mode is not changed, Phytoremediation in situ is realized, and reaches the purpose kept the safety in production under existing environment, realize that irrigated area is exceeded The efficient utilization in cadmium farmland.
Specific embodiment
Embodiment 1
(1) the genotypic difference triage techniques of low accumulation kind is based on following standard:
1) GB18406.1-2001 national standards《Agricultural product security quality pollution-free vegetable safety requirements》: Leaf vegetables cadmium<0.2mg/kg (fresh weight)
2) transfer characteristic:TF<1
3) concentration coefficient feature:EF<1
4) patience characteristic:Biomass is not remarkably decreased
Specific implementation is collected purchase by taking northern Chinese cabbage as an example, as much as possible and is adapted to the big of north growth Breeds of Chinese cabbage, directly plants to cadmium pollution vegetable plot in arable season, analyzed during results soil and Chinese cabbage plant cadmium content, biomass, calculate concentration coefficient, transfer ratio;Obtain compound above-mentioned standard Breeds of Chinese cabbage it is some.
(2) method of the reparation pollutant of supporting plantation
Specific implementation uses two-period form cultivation, and enriching plant-black nightshade (medicinal plant) high is selected first Used as first crop crop, in spring ridge culture drilling, before August just second of the three ten-day periods of the hot season, the florescence of black nightshade harvests;So Site preparation plants the above-mentioned low accumulation breeds of Chinese cabbage (referring to table 1) for filtering out afterwards, and conventional cultivation is received for 90 days Obtain, meanwhile, the content of beary metal of the edible part of the Chinese cabbage of results reaches state food safety in production mark Accurate requirement.
Actual removal rate:(topsoil cadmium content after topsoil cadmium content-reparation before repairing)/repair Preceding topsoil cadmium content * 100%.
Implementation result:
Tried by carrying out cell at Liaoning Shenyang farmland ecosystem country's field science observation study station Test, as a result show, soil cadmium content before plantation black nightshade:1.38mg/kg, Cadmium in Soil contains after plantation black nightshade 1.1 ± 0.09mg/kg of amount, actual removal rate=20.3%.Lower season low accumulation Chinese cabbage cadmium content (state up to standard Family standard GB18406.1-2001), yield does not subtract.
Table 1:Chinese cabbage edible part cadmium content after black nightshade-Chinese cabbage interplanting
In addition, the different low accumulation kind for obtaining can will be also screened using mode of the present invention being planted with enrichment high Thing applies mechanically plantation, and then realizes the effect repaired.

Claims (3)

1. the method for the restoring cadmium polluted vegetable field soil of a kind of low accumulation plantation supporting with enriching plant high, its It is characterised by:Low cadmium-accumulation kind crop and height are alternately planted in cadmium pollution vegetable field soil to be repaired Enriching plant, and then while realizing heavy metals exceeding standard agricultural land soil safe utilization, reach reduction soil The purpose of cadmium pollution.
2. the low accumulation restoring cadmium polluted vegetable plot of plantation supporting with enriching plant high as described in claim 1 The method of soil, it is characterised in that:Alternately plantation low cadmium-accumulation kind crop and the enriching plant high It is the reduction topsoil soils cadmium content for cultivating enriching plant high in advance, low cadmium-accumulation kind is then cultivated again Crop, during low accumulation crop maturity to be grown, reclaims edible portion, and then realize the set of crop Kind.
3. the low accumulation plantation supporting with enriching plant high as described in claim 1 or 2 is restoring cadmium polluted The method of vegetable field soil, it is characterised in that:The low accumulation kind crop is leaf vegetables Cd<0.2 Mg/kg (fresh weight), transfer ratio TF<1st, concentration coefficient EF<1 and biomass be not remarkably decreased.
CN201510902860.9A 2015-12-09 2015-12-09 A kind of method of the low accumulation restoring cadmium polluted vegetable field soil of plantation supporting with enriching plant high Pending CN106853458A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510902860.9A CN106853458A (en) 2015-12-09 2015-12-09 A kind of method of the low accumulation restoring cadmium polluted vegetable field soil of plantation supporting with enriching plant high

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510902860.9A CN106853458A (en) 2015-12-09 2015-12-09 A kind of method of the low accumulation restoring cadmium polluted vegetable field soil of plantation supporting with enriching plant high

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107774705A (en) * 2017-11-14 2018-03-09 中国环境科学研究院 A kind of crop restorative procedure for cutting down agricultural land soil cadmium pollution
CN109158414A (en) * 2018-07-21 2019-01-08 中节能大地(杭州)环境修复有限公司 A kind of plant extract in heavy metal pollution farmland-chemical passivation combined remediation method
CN109290348A (en) * 2018-10-08 2019-02-01 湖北农谷畅响土壤修复科技股份有限公司 A method of cadmium pollution soil is administered using corn and black nightshade
CN109622610A (en) * 2019-01-30 2019-04-16 四川大学 Heavy metal pollution of soil plant restoration method
CN110352808A (en) * 2018-08-01 2019-10-22 中国科学院地球化学研究所 A kind of mercury contaminated soil restorative procedure for realizing polluted agricultural land safety in production
CN111279995A (en) * 2020-04-01 2020-06-16 四川省核工业地质调查院(核工业西南地质调查院) Tomato-violet interplanting cultivation method
CN111992583A (en) * 2020-07-27 2020-11-27 中节能大地环境修复有限公司 Method for restoring alkaline mercury polluted farmland

Citations (2)

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CN102000692A (en) * 2010-12-09 2011-04-06 沈阳大学 Agricultural method for recovering cadmium pollution farmland soil
CN103109651A (en) * 2011-11-16 2013-05-22 中国科学院沈阳应用生态研究所 Method of producing while recovering for cadmium-polluted vegetable field

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
CN102000692A (en) * 2010-12-09 2011-04-06 沈阳大学 Agricultural method for recovering cadmium pollution farmland soil
CN103109651A (en) * 2011-11-16 2013-05-22 中国科学院沈阳应用生态研究所 Method of producing while recovering for cadmium-polluted vegetable field

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107774705A (en) * 2017-11-14 2018-03-09 中国环境科学研究院 A kind of crop restorative procedure for cutting down agricultural land soil cadmium pollution
CN109158414A (en) * 2018-07-21 2019-01-08 中节能大地(杭州)环境修复有限公司 A kind of plant extract in heavy metal pollution farmland-chemical passivation combined remediation method
CN110352808A (en) * 2018-08-01 2019-10-22 中国科学院地球化学研究所 A kind of mercury contaminated soil restorative procedure for realizing polluted agricultural land safety in production
CN109290348A (en) * 2018-10-08 2019-02-01 湖北农谷畅响土壤修复科技股份有限公司 A method of cadmium pollution soil is administered using corn and black nightshade
CN109622610A (en) * 2019-01-30 2019-04-16 四川大学 Heavy metal pollution of soil plant restoration method
CN111279995A (en) * 2020-04-01 2020-06-16 四川省核工业地质调查院(核工业西南地质调查院) Tomato-violet interplanting cultivation method
CN111992583A (en) * 2020-07-27 2020-11-27 中节能大地环境修复有限公司 Method for restoring alkaline mercury polluted farmland

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Application publication date: 20170616