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Screening method for heavy metal enriched / accumulated plant

A screening method and heavy metal technology, which is applied in the field of phytoremediation, can solve the problems such as the limitation of heavy metal determination types, and achieve the effect of facilitating identification and identification, simple method and low cost

Inactive Publication Date: 2005-01-26
SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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Problems solved by technology

This screening method is efficient, but the types of heavy metals are limited

Method used

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  • Screening method for heavy metal enriched / accumulated plant

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Embodiment

[0047] 1. Screening of heavy metal enrichment / accumulation plants

[0048] In view of the lack of research on the enrichment / accumulation plants of Cd single pollution and Cd-Pb-Cu-Zn compound pollution in phytoremediation, the field potted simulation test method was used to test the heavy metal tolerance of 54 field weeds in 20 families in Shenyang, Northeast China. And preliminary systematic research on accumulation ability.

[0049] The test site is located in the Shenyang Ecological Experimental Station of the Chinese Academy of Sciences. The geographical location is 123°41′ east longitude and 41°31′ north latitude. It belongs to a temperate semi-humid continental climate, with an average temperature of 5-9°C, and an annual active accumulated temperature of 3100° greater than 10°C. 3400℃, total annual radiation is 520~544KJ·m -2 , The frost-free period is 127 to 164 days, and the annual precipitation is 650 to 700mm. The station is very rich in weed resources, with a total of ...

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Abstract

The invention relates to environmental pollution plant restoration, specifically to a screening method for heavy metal enriching / accumulating plant. 1)choosing experimental field 2) determining the screening object 3) determining the polluted object 4) potted plant screening experiment for heavy metal The invention chooses weeds as screening object, potted plant experiment , wild sampling and analysis, plot experiment as main means, screen plant for plant restoration. The invention is economic, highly effective, high ecological safety, wide adaptability,

Description

Technical field [0001] The invention relates to phytoremediation of polluted environment, in particular to a screening method of heavy metal enrichment / accumulation plants. Background technique [0002] Phytoremedition is an environmental pollution control technology developed in the past 20 years. It extensively uses the metabolic activities of green plants to fix, degrade, extract and volatilize pollutants in the environment, just like a "green and clean factory". Substances are processed into substances that can be directly removed or converted into less toxic or even non-toxic substances, so as to thoroughly control the polluted environment; it does not cause secondary pollution of groundwater, enables the sustainable use of polluted soil and water bodies, and beautifies the environment, etc. Characteristics, so it is also a very ideal green repair technology. The application range of phytoremediation is quite wide, involving almost all aspects of pollution control, which can...

Claims

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Application Information

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IPC IPC(8): A01H3/00
Inventor 魏树和周启星
Owner SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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