CN102517034B - Method for reducing heavy metals accumulated by lonicera japonica grown in polluted soil - Google Patents
Method for reducing heavy metals accumulated by lonicera japonica grown in polluted soil Download PDFInfo
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- CN102517034B CN102517034B CN 201110423629 CN201110423629A CN102517034B CN 102517034 B CN102517034 B CN 102517034B CN 201110423629 CN201110423629 CN 201110423629 CN 201110423629 A CN201110423629 A CN 201110423629A CN 102517034 B CN102517034 B CN 102517034B
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Abstract
The invention discloses a method for reducing heavy metals accumulated by lonicera japonica grown in polluted soil. The method comprises the following steps of: (1) preparing moss granules; (2) collecting lithophytic moss sheets; (3) preparing straw clippings; (4) preparing a plant fruit adsorbent, namely collecting fruits of cinnamomum camphora, rhus chinensis, elaeocarpus decipiens and phytolaccaamericana, mashing the fruits into powder, putting the powder into a plastic drum, adding calcined lime into the powder, adding water for soaking, naturally airing, and collecting the soaked material to obtain the plant fruit adsorbent; (5) firing black charcoal soil; and (6) mixing 10 percent of moss granules, 30 percent of plant fruit adsorbent and 60 percent of black charcoal soil in a dry weight ratio to form a composite modifier, wherein the moss, the black charcoal and the plant fruit adsorbent have strong adsorption and can adsorb fixed heavy metals, reduce the plant availability of the heavy metals and prevent the heavy metals from entering plants. The method is readily available in materials and convenient to popularize and apply, and does not have ecological risks.
Description
Technical field
The present invention relates to environmental pollution control field, particularly relate to a kind of method that reduces the Japanese Honeysuckle accumulation heavy metal of growing on the contaminated soil.
Background technology
The control of heavy metal contamination is focus and the difficult point problem of current international environmental science research.China is subjected to about 2,000 ten thousand hectares of the farm land of heavy metal contamination, nearly 1,200 ten thousand tons in annual contaminated by heavy metals grain, and problem is very outstanding.China has a large population and ploughs few particularly thornyly, and big area heavy metal contamination soil carried out to lie fallow can influence grain-production and national security is stablized, and this is unpractical in China.Research is an urgent demand that solves agricultural products in China safety in the technology that contaminated land carries out safe agriculture production.
Japanese Honeysuckle (
Lonicera japonica) have that growth is fast, life-span length, strong resistance, wide adaptability, to characteristics such as the soil requirement are not tight, it not only has very high pharmaceutical use and economic worth, and is the outstanding garden plants that is distributed widely in tropical and subtropical zone.Therefore, the cultivation Japanese Honeysuckle both can be beautified the environment, and can obtain economic benefit again.Discover heavy metals such as Japanese Honeysuckle energy absorption and accumulation cadmium and lead.The ecology resistance control techniques of research plant accumulation heavy metal is to realize that Japanese Honeysuckle is in heavy metal polluted soil safety cultivation on the ground and the important step of producing.
Summary of the invention
The present invention adopts liver moss, black wood charcoal soil, plant absorbent really processed and straw bits as the substrate culture Japanese Honeysuckle, these matrix both can be plant-growth abundant nutrition were provided, adsorbable fixing soil heavy metal again, reduce the biological effectiveness of heavy metal, resistance control heavy metal from the contaminated soil transmission enter Japanese Honeysuckle (
Lonicera japonica) in the body, be implemented in the contaminated soil safety cultivation and produce Japanese Honeysuckle.
Technical scheme of the present invention
A kind of method that reduces the Japanese Honeysuckle accumulation heavy metal of growing on the contaminated soil may further comprise the steps:
(1) liver moss granules preparation: in forest, collect liver moss, pulverize, air-dry, as the liver moss particle;
(2) stone mossy moss sheet is gathered: collect the liver moss of growth in flakes at rock, as stone mossy moss sheet;
(3) straw bits preparation: collect dry rice straw, pulverize and make the straw bits;
(4) plant absorbent really processed preparation: collect fragrant camphor tree (
Cinnamomum camphora), yellow wood (
Rhus chinensis), Elaeocarpus decipiens (
Elaeocarpus decipiens) and dyers' grapes (
Phytolacca americana) fruit, smash into powder to pieces, powder is placed in the plastic tank, in powder adds, add unslaked lime then, soak, natural air drying is collected soak-out material as plant sorbent material really processed;
(5) black wood charcoal soil is fired: in the place of long weeds, band soil shovels together and digs weeds, makes lump zone soil turf, dries; Harvesting shrub and weeds build up rick, and cover tape soil turf is lighted rick on the rick, and smoulder after fire extinguishes, is collected soil and the black wood charcoal burnt, sieves, and is mixed and made into black wood charcoal soil;
(6) liver moss particle, fruit sorbent material and black wood charcoal soil are mixed with composite modifying agent by the dry weight mixed: liver moss particle 10%, plant sorbent material 30% really processed, black wood charcoal soil 60%;
(7) select sample ground in the manganese ore zone of pollution, make the plantation hole, each hole middle berth is filled out one deck straw bits, the straw bits are gone up and are covered one deck black wood charcoal soil, transplant the gold and silver flower seedling, cover one deck composite modifying agent again, cover one deck stone mossy moss sheet at composite modifying agent, each hole is inserted Japanese Honeysuckle and is climbed up by holding on to bar;
As preferably, when adding unslaked lime in the powder in the step (4), the per kilogram powder adds 100 gram unslaked limes, soaks 3 months.
As preferably,, in the step (7), the best bed thickness of described straw bits is 4 centimetres, and the best bed thickness of black wood charcoal soil is 8 centimetres, and the best bed thickness of composite modifying agent is 6 centimetres, and the best bed thickness of stone mossy moss sheet is 2 centimetres, described Japanese Honeysuckle climbs up by holding on to bar and is a band branch bamboo bar.
Principle is:
(1) moss growth is intensive, and fixing soil and suction water-holding capacity are strong, help to conserve water and soil.Liver moss can be adsorbed fixedly heavy metal, and resistance control heavy metal enters in the plant materials.Stone mossy moss can tolerate extreme temperature.
(2) fruit is made sorbent material through smashing to pieces, adding after unslaked lime soaks, and fixedly the heavy metal ability is strong in absorption, can reduce the plant availability of heavy metal.
(3) black wood charcoal soil contains abundant mineral element.Black wood charcoal in the black wood charcoal soil is adsorbable to stay moisture and nutrient with holding, and strengthens plant drought resistance and reduces nutrient loss.
(4) black wood charcoal stability is strong, but prolonged preservation is in environment and be difficult for by mineralising; Black wood charcoal can adsorb fixedly heavy metal, and adding the black wood charcoal soil that is rich in black wood charcoal can effectively stop heavy metal by plant absorbing.
(5) liver moss, straw bits, the rotten decomposition of fruit can be increase soil fertility, and help plant-growth.
(6) plant of unslaked lime infuse sorbent material really processed and black wood charcoal soil all are alkalescence, and contaminated soil basicity is increased, and reduce the water-soluble content of heavy metals such as cadmium, lead, reduce these heavy metals of plant absorbing.
Beneficial effect of the present invention
(1) liver moss, black wood charcoal and plant sorbent material three's really processed adsorptivity is strong, can adsorb fixedly heavy metal, reduces the plant availability of heavy metal, stops heavy metal to enter in the plant materials.
(2) with stone mossy moss sheet cover plant hole, can fixing soil, reduce water and soil and corrode.
(3) black wood charcoal soil contains abundant nutrition, can be plant-growth nutrient is provided.
(4) black wood charcoal, liver moss can both be adsorbed, be held and stay nutrient and moisture, strengthen plant drought resistance and reduce nutrient loss.
(5) liver moss, fruit and straw can slowly decompose under field conditions (factors), discharge nutrition, for plant provides nutrient.
(6) material therefor is cheap and easy to get, and is easy to utilize.
(7) used liver moss, fruit, straw and black wood charcoal soil all are green ecological materials, no ecological risk.
Embodiment
Below in conjunction with embodiment the present invention is described in detail.
Embodiment
Experimentize in the Xiangtan Manganese Mine zone of pollution year May in September, 2009 to 2011.
(1) liver moss granules preparation: in forest, collect liver moss in September, 2009, pulverize, air-dry, mix as the liver moss particle.
(2) stone mossy moss sheet is gathered: collect the liver moss of growth in flakes at rock, as stone mossy moss sheet.
(3) straw bits preparation: collect dry rice straw, pulverize and make the straw bits.
(4) plant absorbent really processed preparation: collect fragrant camphor tree (
Cinnamomum camphora), yellow wood (
Rhus chinensis), Elaeocarpus decipiens (
Elaeocarpus decipiens) and dyers' grapes (
Phytolacca americana) fruit, smash into powder to pieces, powder is placed in the plastic tank, the per kilogram powder adds 100 gram unslaked limes, soaks again, soaks after 3 months, natural air drying, the collection soak-out material is as plant sorbent material really processed.
(5) black wood charcoal soil is fired: in the place of long weeds, band soil shovels together and digs weeds, makes lump zone soil turf, dries; Harvesting shrub and weeds build up rick, and cover tape soil turf is lighted rick, and smoulder after fire extinguishes, is collected soil and the black wood charcoal burnt, sieves, and is mixed and made into black wood charcoal soil.
(6) liver moss particle, fruit sorbent material and black wood charcoal soil are mixed with composite modifying agent by the dry weight mixed: liver moss particle 10 ㎏, plant sorbent material 30 ㎏ really processed, black wood charcoal soil 60 ㎏.
Select 2 sample ground in March, (7) 2010 in the manganese ore zone of pollution, sample ground is denoted as Y-1 and Y-2 respectively.The plantation hole is made on arrangement sample ground, long 60 centimetres, wide 40 centimetres, dark 20 centimetres of hole.The plant hole treatment measures on Y-1 sample ground are: each hole middle berth is filled out the straw bits of 4 cm thicks, the straw bits are gone up the black wood charcoal soil that covers 8 cm thicks, transplant 3 of gold and silver flower seedlings, cover the composite modifying agent of 6 cm thicks again, cover the stone mossy moss sheet of 2 cm thicks at composite modifying agent.Y-2 sample ground is only executed in the plantation hole and is filled out contaminated soil in contrast, transplants 3 of gold and silver flower seedlings in each hole.The perpendicular two bands bamboo bar of inserting in each hole are climbed up by holding on to bar as Japanese Honeysuckle.In May, 2011, gather stem of Flos Lonicerae, Ye Hehua, measure heavy metal content (seeing Table 1): the stem of the Japanese Honeysuckle on Y-1 sample ground, the cadmium of Ye Hehua, lead, zinc and manganese content significantly are lower than contrast (Y-2), and zinc and manganese content are low in the spending of the Japanese Honeysuckle on Y-1 sample ground, and do not detect cadmium during it is spent with plumbous.
Heavy metal content (the mg.kg of table 1 stem of Flos Lonicerae, Ye Hehua
-1)
Annotate: in the same row homolog be marked with different letter representations handle with the contrast differences significantly (
p＜0.05).
Claims (1)
- A Japanese Honeysuckle that reduces to grow on the contaminated soil ( Lonicera japonica) accumulation heavy metal method, it is characterized in that, may further comprise the steps:(1) liver moss granules preparation: in forest, collect liver moss, pulverize, air-dry, as the liver moss particle;(2) stone mossy moss sheet is gathered: collect the liver moss of growth in flakes at rock, as stone mossy moss sheet;(3) straw bits preparation: collect dry rice straw, pulverize and make the straw bits;(4) plant absorbent really processed preparation: collect fragrant camphor tree ( Cinnamomum camphora), yellow wood ( Rhus chinensis), Elaeocarpus decipiens ( Elaeocarpus decipiens) and dyers' grapes ( Phytolacca americana) fruit, smash into powder to pieces, powder is placed in the plastic tank, in powder, add unslaked lime then, soak, natural air drying is collected soak-out material as plant sorbent material really processed;(5) black wood charcoal soil is fired: in the place of long weeds, band soil shovels together and digs weeds, makes lump zone soil turf, dries; Harvesting shrub and weeds build up rick, and cover tape soil turf is lighted rick on the rick, and smoulder after fire extinguishes, is collected soil and the black wood charcoal burnt, sieves, and is mixed and made into black wood charcoal soil;(6) liver moss particle, fruit sorbent material and black wood charcoal soil are mixed with composite modifying agent by the dry weight mixed: liver moss particle 10%, plant sorbent material 30% really processed, black wood charcoal soil 60%;(7) select sample ground in the manganese ore zone of pollution, make the plantation hole, each hole middle berth is filled out one deck straw bits, the straw bits are gone up and are covered one deck black wood charcoal soil, transplant the gold and silver flower seedling, cover one deck composite modifying agent again, cover one deck stone mossy moss sheet at composite modifying agent, each hole is inserted Japanese Honeysuckle and is climbed up by holding on to bar;When adding unslaked lime in the powder in the described step (4), the per kilogram powder adds 100 gram unslaked limes, soaks 3 months;In the described step (7), the best bed thickness of straw bits is 4 centimetres, and the best bed thickness of black wood charcoal soil is 8 centimetres, and the best bed thickness of composite modifying agent is 6 centimetres, and the best bed thickness of stone mossy moss sheet is 2 centimetres, and described Japanese Honeysuckle climbs up by holding on to bar and is band branch bamboo bar.
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| CN 201110423629 CN102517034B (en) | 2011-12-17 | 2011-12-17 | Method for reducing heavy metals accumulated by lonicera japonica grown in polluted soil |
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| CN102517034B true CN102517034B (en) | 2013-09-25 |
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| CN104472188B (en) * | 2014-12-13 | 2016-09-14 | 湖南科技大学 | A kind of method reducing the Herba sedi kamtschatici absorption and accumulation heavy metal grown on manganese ore contaminated soil |
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| CN106431712A (en) * | 2016-11-14 | 2017-02-22 | 湖南省核农学与航天育种研究所 | Rice cadmium-reducing leaf fertilizer, preparation method thereof and application in rice planting |
| CN107262518A (en) * | 2017-06-07 | 2017-10-20 | 常州建轩纺织品有限公司 | A kind of restorative procedure of heavy metal cadmium soil |
| CN108641730A (en) * | 2018-07-03 | 2018-10-12 | 李金磊 | A kind of soil conditioner and preparation method thereof |
| CN112385351A (en) * | 2020-12-03 | 2021-02-23 | 湖南科技大学 | Ecological improvement method of saline-alkali soil |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101491810A (en) * | 2009-02-23 | 2009-07-29 | 湖南科技大学 | Method for preventing and controlling heavy-metal movement of uranium tailings slag using plants |
| CN101502843A (en) * | 2009-02-23 | 2009-08-12 | 湖南科技大学 | Method for repairing and improving soil polluted by uranium mine tailings |
| CN101722178A (en) * | 2009-11-20 | 2010-06-09 | 中山大学 | Method for jointly repairing vegetation and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101491810A (en) * | 2009-02-23 | 2009-07-29 | 湖南科技大学 | Method for preventing and controlling heavy-metal movement of uranium tailings slag using plants |
| CN101502843A (en) * | 2009-02-23 | 2009-08-12 | 湖南科技大学 | Method for repairing and improving soil polluted by uranium mine tailings |
| CN101722178A (en) * | 2009-11-20 | 2010-06-09 | 中山大学 | Method for jointly repairing vegetation and application thereof |
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