Method for simulating soil solute transport in laboratory

A technology of solute transport and simulation method, applied in soil material testing, material inspection products, etc., can solve problems such as authenticity and accuracy can not be verified, can not truly reflect the natural operation law, etc., to achieve the effect of improving controllability

Inactive Publication Date: 2011-05-18
XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI +1
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Problems solved by technology

[0006] The above methods are all based on the saturated water content of the soil. The actual field water potential is often more evaporation than rainfall.

Method used

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  • Method for simulating soil solute transport in laboratory
  • Method for simulating soil solute transport in laboratory

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Embodiment

[0019] Further description below in conjunction with accompanying drawings.

[0020] A laboratory soil solute migration simulation method according to the present invention, the devices involved in the method are a soil column fixing ring, an overflow tank, a universal quick-plug joint, a clay plate, a water-permeable filter membrane, a universal adjustment foot, Sampling bottle, exhaust pipe, branch head, buffer bottle, adjustable negative pressure pump, data acquisition controller, signal cable, sample bottle, soil solution sampler, transparent PVC soil column and soil three-parameter sensor, soil column 16 embedded in In the soil column fixing ring 1, an overflow tank 2, a universal quick-plug joint 3 and a universal adjustment foot 6 are arranged at the bottom of the soil column fixing ring 1, and the universal quick-plug joint 3 is connected to the sampling bottle 7 through an overflow pipe , the sampling bottle 7 is connected to the branch head 9 through the air extracti...

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Abstract

The invention relates to a method for simulating oil solute transport in a laboratory. The method comprises the following devices: a soil pillar fixing ring, an overflow groove, a universal quick connector, an argil plate, a permeable filter membrane, a universal adjusting pin, a sampling bottle, an air exhaust tube, a branch head, a buffer bottle, an adjustable negative-pressure pump, a data acquisition controller, a signal cable, a sampling bottle, a soil solution sampler, a transparent PVC (polyvinyl chloride) soil pillar and a soil three-parameter sensor. By controlling the change of soil water potential in the soil pillar and promoting the soil solute transport, the method realizes quick observation on the process of the soil solute transport, provides a parameter optimization means for establishing a soil solute transport model, shortens the test period, improves the test precision, ensures more scientific and reliable study results, and provides a test calibration tool for experimental study on liquidity of soil water, energy balance, migration of soil pollutants and the like.

Description

technical field [0001] The invention relates to a laboratory soil solute migration simulation method. Background technique [0002] With the increasingly serious pollution of soil and water bodies, the study of soil solute migration process and transformation rules, especially the mechanism of pollutant migration and transformation has become a research hotspot and difficulty in soil science and environmental science. The related soil solute migration Technology advances soil physics, environmental science, and agricultural irrigation. [0003] In the traditional method, there are holes for free seepage under the soil column. After the soil water is saturated, it starts to seep downward, and the infiltration depends entirely on the gravity potential of the soil water. The traditional method of solute transport experiment is very slow, the difference between the laboratory and the field is large, the influence of evaporation cannot be considered, and the accuracy of the expe...

Claims

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Application Information

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IPC IPC(8): G01N33/24
Inventor 赵成义盛钰李新张楠楠
Owner XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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