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Method for quantifying solute transport in soil through CT scanning technology and ion tracing technology

A technology of CT scanning and tracer technology, applied in measurement devices, particle and sedimentation analysis, material analysis using wave/particle radiation, etc. Small, low price effect

Pending Publication Date: 2022-03-25
BEIJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, without destroying the undisturbed soil, it is difficult to directly quantify the dynamic process of water in the soil by relying on CT scan alone.

Method used

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Embodiment Construction

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of the present invention.

[0024] According to a method for quantifying solute transport in soil with CT scanning technology and ion tracing technology according to the embodiment of the present invention, the method uses CT scanning to study water transport in soil Inorganic I - The solution was used as a tracer, and the undisturbed soil column was collected by selecting a PVC pipe with a size of 300mm × 110 mm × 3.2 mm (height × outer diameter × thickness), and a 0.5 g / mL potassium iodide (Potassium Iodide) solution was selected for tracer experiments. The CT value of the s...

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Abstract

The invention discloses a method for quantifying solute transport in soil through a CT scanning technology and an ion tracing technology. The method comprises the steps that a sample is subjected to saturation standing; preparing a potassium iodide solution as a tracer agent; performing first CT scanning on the sample; adding a tracer agent to carry out second CT scanning on the sample; adding a tracer agent to carry out third CT scanning on the sample; after scanning is finished, a CT scanning image is extracted through VG Studio software, and image interpretation is conducted through Avizo software. According to the method for quantifying the solute transport in the soil through the CT scanning technology and the ion tracing technology, the ion tracing technology is combined with a CT scanning instrument and professional three-dimensional analysis software, and the solute transport in the soil is quantified on the premise that the soil structure is not damaged; in addition, compared with a traditional brilliant blue dyeing method, damage to the environment can be reduced.

Description

technical field [0001] The invention relates to the technical field of soil macropore space network structure analysis, in particular to a method for quantifying solute transport in soil by CT scanning technology and ion tracing technology. Background technique [0002] Moisture transport in soil is an important part of soil hydrological cycle. Moisture transport processes in soils, especially dominant flow processes, vary greatly across all temporal and spatial scales. Therefore, the research on the transport process of water in soil needs to rely on advanced instruments, instruments and technical expertise. At present, the methods of soil moisture research include traditional profile observation, photography, resin filling, time domain reflectometry (TDR), ground penetrating radar (GPR), etc. Through these techniques, moisture can be directly or indirectly observed in the soil environment. Among them, ground penetrating radar combined with digital model can measure the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/046G01N15/00
CPCG01N23/046G01N15/00G01N2015/0061
Inventor 胡霞赵云朵程雅倩
Owner BEIJING NORMAL UNIVERSITY
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