CN102527706B - Application of cardamine hupingshanesis in remediating soil polluted by heavy metal cadmium - Google Patents
Application of cardamine hupingshanesis in remediating soil polluted by heavy metal cadmium Download PDFInfo
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- CN102527706B CN102527706B CN 201210029692 CN201210029692A CN102527706B CN 102527706 B CN102527706 B CN 102527706B CN 201210029692 CN201210029692 CN 201210029692 CN 201210029692 A CN201210029692 A CN 201210029692A CN 102527706 B CN102527706 B CN 102527706B
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- soil
- cadmium
- heavy metal
- tall bottle
- hairy bittercress
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- 229910052793 cadmium Inorganic materials 0.000 title claims abstract description 46
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000002689 soil Substances 0.000 title claims abstract description 45
- 229910001385 heavy metal Inorganic materials 0.000 title abstract description 20
- 241000490499 Cardamine Species 0.000 title abstract description 8
- 235000008473 Cardamine hirsuta Nutrition 0.000 claims description 32
- 244000079426 Cardamine hirsuta Species 0.000 claims description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000003337 fertilizer Substances 0.000 claims description 5
- 238000009333 weeding Methods 0.000 claims description 2
- 241000196324 Embryophyta Species 0.000 abstract description 21
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005067 remediation Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 238000004458 analytical method Methods 0.000 description 5
- 240000007594 Oryza sativa Species 0.000 description 3
- 235000007164 Oryza sativa Nutrition 0.000 description 3
- 230000012010 growth Effects 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- WZLMXYBCAZZIRQ-UHFFFAOYSA-N [N].[P].[K] Chemical compound [N].[P].[K] WZLMXYBCAZZIRQ-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- SMMIDVLUFMPWFN-UHFFFAOYSA-N 4-nitro-n-[(4-phenyldiazenylphenyl)diazenyl]aniline Chemical compound C1=CC([N+](=O)[O-])=CC=C1NN=NC1=CC=C(N=NC=2C=CC=CC=2)C=C1 SMMIDVLUFMPWFN-UHFFFAOYSA-N 0.000 description 1
- 244000178993 Brassica juncea Species 0.000 description 1
- 235000014698 Brassica juncea var multisecta Nutrition 0.000 description 1
- 241001164374 Calyx Species 0.000 description 1
- 241001652014 Cardamine hupingshanensis Species 0.000 description 1
- 206010013786 Dry skin Diseases 0.000 description 1
- 241000286862 Siliqua Species 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004847 absorption spectroscopy Methods 0.000 description 1
- 230000003698 anagen phase Effects 0.000 description 1
- 230000008827 biological function Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002795 fluorescence method Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229940023569 palmate Drugs 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000000419 plant extract Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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- 230000009261 transgenic effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the technical field of remediation of heavy metal pollution in an environment, in particular to application of cardamine hupingshanesis in remediating soil polluted by heavy metal cadmium. According to the scheme, the cardamine hupingshanesis is planted in the soil polluted by the heavy metal cadmium, and overground parts of the cardamine hupingshanesis are harvested. Thesoil polluted by the cadmium is remediated by the cardamine hupingshanesis, and an effect is good. The cardamine hupingshanesis is easy to plant, survive and manage, the cost is low and the operability is high when the cardamine hupingshanesis is used for treating the soil polluted by the cadmium, and the physio-chemical structure of the soil cannot be damaged.
Description
Technical field
The present invention relates to the recovery technique field of heavy metal pollution in the environment, the application of especially a kind of tall bottle with spout Hairy Bittercress in the repairing heavy metal in soil cadmium pollution.
Background technology
At present, the arable land of national heavy metal pollution accounts for 1/5 of total cultivated area, and wherein Cadmium Pollution in Soils is particularly outstanding.Studies show that ground resident's rice, effects of cadmium on wheat intakes such as Mianzhu, Shifang exceed standard 2 times to 10 times, 21 rice varieties cadmium exceeding standard rate in big Golconda mining area, Guangdong reach 100%.Near contaminated area rice cadmium content severe overweight etc. the gold mine of Suichang, Zhejiang.Therefore, the improvement of Cadmium Pollution in Soils is the task of being badly in need of solution, but does not see the relevant effective ways of removing Cadmium Pollution in Soils both at home and abroad as yet at present.
Super enriching plant (hyper accumulator) word is proposed by people such as Brooks at first, refers to the plant of one or more heavy metal elements of energy excess enrichment.By super enriching plant carry out the plant extract rehabilitating soil pollute have construction investment cheap, do not destroy ecological environment of soil, reduce advantages such as secondary pollution, but since phytoremediation technology that is that all right is ripe, the remediation efficiency of a lot of hyperaccumulative plants is lower, is difficult to play effective application in actual repair.In recent years, with the biological function aspect of transgenic plant research gene large development has been arranged, for example Indian mustard becomes a kind of model plant gradually, but up to now, the achievement that genetically modified plants are applied to phytoremediation also can reach commercial level far away.With regard to phytoremediation, the hyperaccumulative plant that screens resistance in existing plant resources, biomass is big, uptake is many and can cuts off the contaminated food chain remains basis and the key problem in phytoremediation field.
Tall bottle with spout Hairy Bittercress (Cardamine hupingshanensis) belongs to the Cruciferae Cardamine, is the novel species that people such as Bai Hongfeng delivered in 2008, gains the name because being distributed in tall bottle with spout mountain one band that Hubei Province, Hunan has a common boundary.The tall bottle with spout Hairy Bittercress is perennial herb, and subterranean stem is obvious, and stem stands up or be crooked, and branch is often arranged at top, high 20~100cm, the smooth nothing hair of complete stool.Single leaf alternate, papery, long 4~13cm, wide 5~14cm, kidney shape or near heart-shaped, palmate vein, edge tool sawtooth, the basal leaf idol has 1~4 pair of leaflet; Long 2.5~the 12cm of petiole, the unconspicuous wing of tool, basic expansion is the auricle shape, do not embrace stem.The raceme item is given birth to or armpit is given birth to no bract.Calyx is avette, long 5~6mm, wide 3~4mm; Petal white, tool netted veins, wide obovate, long 8~10mm, wide 5~8mm, the blunt circle in top, base portion wedge shape; 6 pieces on stamen, closely isometric, the filigree base portion enlarges slightly, the 4 pieces of long 5mm in middle part, 2 pieces of long 4mm of adnation, flower pesticide is long avette, is about 2mm; The gynoecium column, column cap is obvious, smooth nothing hair, long 5~6mm.Siliqua, linear, long 2~4cm, slightly about 2mm.Long 1~the 2cm of carpopodium, upright or tiltedly exhibition.The seed ellipse, brown or yellow are about 1.5mm, and be aptery.4~May of florescence, really 6~July of phase.
So far, do not see that the application of bibliographical information tall bottle with spout Hairy Bittercress in the repairing heavy metal in soil cadmium pollution arranged.
Summary of the invention
The objective of the invention is: overcome the deficiencies in the prior art, a kind of new application of plant variety tall bottle with spout Hairy Bittercress in the repairing heavy metal in soil cadmium pollution is provided.
The scheme that the present invention solve the technical problem is: the application of tall bottle with spout Hairy Bittercress in the repairing heavy metal in soil cadmium pollution, the tall bottle with spout Hairy Bittercress is planted in the soil of heavy metal cadmium the aerial part of harvesting tall bottle with spout Hairy Bittercress.
The present invention utilizes the tall bottle with spout Hairy Bittercress to the enriched character of heavy metal cadmium, it planted in contaminated soil, but the absorption and accumulation heavy metal cadmium, and its major part is transported to aerial part, to reach the purpose of repairing heavy metal in soil cadmium pollution.The individual biomass of tall bottle with spout Hairy Bittercress is big, can promote the repairing effect of unit are heavy metal-polluted soil, for the phytoremediation of heavy-metal contaminated soil has been developed new plant resource variety.The tall bottle with spout Hairy Bittercress changes between the hundreds of tens the concentration coefficient (ratio of total cadmium content in aerial part cadmium content and the soil) of cadmium, be beyond one's reach if high concentration coefficient is other plant, but fluctuation is bigger, and optimal conditions remains further to be studied.
As further technical scheme, when described tall bottle with spout Hairy Bittercress was planted in the soil of heavy metal cadmium, the tall bottle with spout Hairy Bittercress was in the seedling phase.
The applicant finds: tall bottle with spout Hairy Bittercress cadmium content increases along with the passing of plant strain growth phase, from the seedling phase to beginning the process of setting seeds, the plant cadmium content increases very fast, with set seeds before compare, the increase of the back tall bottle with spout Hairy Bittercress cadmium accumulation of setting seeds descends relatively.When the tall bottle with spout Hairy Bittercress is planted in the soil of heavy metal cadmium, if the tall bottle with spout Hairy Bittercress is in the seedling phase, then can utilize its growth characteristics, absorb the cadmium in the soil to greatest extent.
As further technical scheme again, described tall bottle with spout Hairy Bittercress applies fertilizer to soil before planting in the soil of heavy metal cadmium.
After applying fertilizer to soil, can impel the growth of tall bottle with spout Hairy Bittercress.
As technical scheme further, the water content that keeps described soil is 60~80% of field capacity.
The present invention utilizes the tall bottle with spout Hairy Bittercress to come restoring cadmium polluted soil, and effect is better.The tall bottle with spout Hairy Bittercress is easily planted, easily survived, manageability, and is lower, workable with its soil cost of handling cadmium pollution, and can not destroy the physics and chemistry structure in soil.
The specific embodiment
Embodiment 1
The experiment place: common farmland, Huzhou, Zhejiang, soil cadmium content are 0.14mg/kg.Gather tall bottle with spout Hairy Bittercress seed in by the end of June, 2010, the laggard pedestrian worker's cultivation of growing seedlings.In October, 2010, tame tall bottle with spout Hairy Bittercress seedling directly is transplanted to this common farmland, apply fertilizer such as nitrogen phosphorus potassium before transplanting to the farmland, keeping the water content of soil is 60% of field capacity, spacing in the rows 20cm * 20cm, extensive management, weeding regularly.The aerial part that gather in the tall bottle with spout Hairy Bittercress in March, 2011 detects analysis.Detection method is: the soil gathered through room-dry, is pulverized, carried out chemical analysis after crossing the 2mm sieve; The plant of gathering detects behind 80 ℃ of baking oven inner dryings after washing with a large amount of running water.The cadmium content of soil and plant atomic fluorescence method absorption spectrometry.The result is: the aerial part cadmium content is 3.3mg/kg, concentration coefficient 23.6.
Embodiment 2
The warmhouse booth cultivation.In mid-September, 2010, in area, Huzhou, Zhejiang, will be for examination soil air-dry and cross the 4mm sieve after, with a certain amount of cadion fully mix the dress basin (
H=15cm), handle back soil cadmium content and be respectively 4.3mg/kg, 10mg/kg, 30mg/kg, 50mg/kg, 70mg/kg and 100mg/kg.2 week backs select the tall bottle with spout Hairy Bittercress of the consistent seedling phase that is in of growth to transplant in the basin, add fertilizer such as nitrogen phosphorus potassium before transplanting to soil.By the end of October potted plant tall bottle with spout Hairy Bittercress is moved into hot house, canopy is high 2 meters, and is wide 4 meters, irregularly waters running water, and keeping the water content of soil is 80% of field capacity.The aerial part that gather in the tall bottle with spout Hairy Bittercress in March, 2011 detects analysis, and analytical method is with embodiment 1, and analysis result is as follows:
As seen from table, along with the increase of soil cadmium content, the plant cadmium content raises; When the soil cadmium content surpasses 30mg/kg, the cadmium content of plant continues to increase, but biological yield reduces gradually; When the soil cadmium content reached 100mg/kg, the aerial part cadmium content was 3120mg/kg, but biological yield only is about half of potted plant the highest biological yield, even indivedual plant phenomena of mortality occurred.From rich cadmium coefficient, under the greenhouse cultivation condition, when the soil cadmium concentration was 10mg/kg, concentration coefficient was the highest, and the soil cadmium content surpasses 30mg/kg, and concentration coefficient sharply reduces.
Claims (1)
1. the application of tall bottle with spout Hairy Bittercress in restoring cadmium polluted farmland is characterized in that: gather tall bottle with spout Hairy Bittercress seed by the end of June, the laggard pedestrian worker's cultivation of growing seedlings; Directly be transplanted to farmland with tame tall bottle with spout Hairy Bittercress seedling October, applies fertilizer to the farmland before transplanting; Keeping the water content of soil is 60% of field capacity, spacing in the rows 20cm * 20cm, extensive management, weeding regularly; Gather in the aerial part of tall bottle with spout Hairy Bittercress March next year.
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CN 201210029692 CN102527706B (en) | 2012-02-10 | 2012-02-10 | Application of cardamine hupingshanesis in remediating soil polluted by heavy metal cadmium |
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CN 201210029692 CN102527706B (en) | 2012-02-10 | 2012-02-10 | Application of cardamine hupingshanesis in remediating soil polluted by heavy metal cadmium |
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Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103817141B (en) * | 2014-02-25 | 2015-11-18 | 四川农业大学 | Clearvers repairs the application in farmland soil heavy metals cadmium pollution in the winter time |
CN104025862B (en) * | 2014-06-12 | 2016-06-22 | 四川农业大学 | Miscegenation enriching plant improves the method that Radix Achyranthis Bidentatae chrysanthemum repairs orchard cadmium pollution soil ability |
CN104128362A (en) * | 2014-07-14 | 2014-11-05 | 华南农业大学 | Method for restoring cadmium polluted soil by Thalia dealbata |
CN110449460A (en) * | 2018-05-08 | 2019-11-15 | 中环循环境技术有限责任公司 | A kind of engineer application method using the restoring cadmium polluted agricultural land soil of tall bottle with spout Hairy Bittercress |
CN113355098A (en) * | 2021-07-07 | 2021-09-07 | 陕西理工大学 | Plant source liquid enhancer for repairing selenium-polluted soil and application thereof |
CN115926799A (en) * | 2022-12-08 | 2023-04-07 | 恩施土家族苗族自治州农业科学院 | Application of Fusarium aromaticum in Soil with Selenium and Cadmium |
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CN101591066A (en) * | 2009-07-13 | 2009-12-02 | 四川农业大学 | Application of Broken Rice Chestnut in Treatment of Wastewater from Livestock and Poultry Breeding |
CN102172607A (en) * | 2011-01-24 | 2011-09-07 | 四川农业大学 | Use of Debregeasia orientalis C. J. Chen in remediation of cadmium heavy metal contaminated soil |
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Patent Citations (3)
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CN101591066A (en) * | 2009-07-13 | 2009-12-02 | 四川农业大学 | Application of Broken Rice Chestnut in Treatment of Wastewater from Livestock and Poultry Breeding |
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CN102172607A (en) * | 2011-01-24 | 2011-09-07 | 四川农业大学 | Use of Debregeasia orientalis C. J. Chen in remediation of cadmium heavy metal contaminated soil |
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