Small soil-water-plant ecological system for experiment

An ecological system and experimental technology, applied in the field of environmental ecology, can solve the problems of not being able to obtain data, consume a lot of manpower, material resources and time, and achieve the effect of independent and complete structure, wide application range and easy operation

Inactive Publication Date: 2016-09-07
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to study the environmental fate of pollutants in the soil-water-plant system, that is, the process of migration, transformation, and circulation, generally, a highly simplified method is used to conduct macroscopic simulation; or simulate a local independent system to conduct experiments to explore the microscopic mechanism; or through Conduct fixed-point sampling and analysis of outdoor field areas to study the distribution of pollutants in the regional soil, growing plants and surrounding water bodies. This method not only consumes a lot of manpower, material resources and time, but also cannot obtain complete and systematic data. material

Method used

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  • Small soil-water-plant ecological system for experiment
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Examples

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Embodiment 1

[0029] figure 1 It is a structural schematic diagram of this embodiment, and the system is composed of a soil-water-plant device 1, an underground runoff simulation device 2, an environment simulation device, a surface runoff / soil middle flow recovery device 4 and a liquid flow circulation device;

[0030] The soil-water-plant device 1 is set on the top of the underground runoff simulation device 2, and the environment simulation device is set on the top of the soil-water-plant device 1; the surface runoff / soil midflow recovery device 4 is set on the main body of the soil-water-plant device 1 on the outer ring wall; the liquid flow circulation device is connected to the surface runoff / soil middle flow recovery device 4, the environmental simulation device and the underground runoff simulation device 2 through the connecting pipe 8;

[0031] The main body of the soil-water-plant device 1 is placed inside the main body of the underground runoff simulation device 2. The soil-wate...

Embodiment 2

[0034] figure 2It is a schematic structural diagram of this embodiment, using a soil-water-plant mini-ecosystem similar to that of Example 1, the difference being that the soil flow recovery device 4 moves up and down to intercept the soil flow at different depths. , using the movable water guide plate 10 to directly discharge the overflowed runoff / soil midflow above the target depth position into the underground runoff simulation device 2 .

[0035] This example aims to investigate the effect of phytoremediation on polluted soil, select the corresponding high-enrichment plants according to the main pollutants in the soil, and regularly detect the concentration of pollutants in the soil flow and underground runoff at different depths to determine the effectiveness of phytoremediation. Provide data reference and practical guidance for the practical application of phytoremediation methods.

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Abstract

The invention relates to a small soil-water-plant ecological system for experiment. The system is composed of a soil-water-plant device, an subsurface runoff simulation device, an environment simulation device, an overland runoff / interflow recovery device and a liquid flow circulating device, wherein the soil-water-plant device comprises a soil layer, the subsurface runoff simulation device is provided with a water inlet and a water outlet, and the environment simulation device is provided with a moisture regulation and rainfall simulation unit and an illumination unit. Based on the soil-water-plant polymorphic environment of the natural ecosphere, water circulation and ecological process of the natural world are simulated economically and reasonably, and multi-point sampling can be conducted at any time to monitor the trend of pollutants; the system is complete, simple in structure and easy to operate, maintain and manage, and provides technical support and data reference for evaluation of eco-environment risk of pollutants and application and effect of a phytoremediation method.

Description

technical field [0001] The invention relates to the field of environmental ecology, in particular to an experimental soil-water-plant miniature ecosystem. Background technique [0002] The soil-water-plant system is the most closely related subsystem in the earth's ecosystem to human survival and health. In recent years, as chemical pollutants have entered the soil system through multiple channels, such as waste discharged in industrial production, chemical fertilizers and pesticides used in agricultural production, and leakage of chemicals during transportation and storage, serious soil pollution has been caused; Pollutants leached into the aquifer to cause secondary pollution to groundwater; eventually, the quality of the soil environment and water environment deteriorated, the quality of plants and the safety of crops decreased, and the risk of human exposure to pollutants through direct contact or food chain transmission increased. As a result, great potential ecologica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 黄诗迪盛光遥
Owner TONGJI UNIV
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