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Nondestructive testing method for plant response combined pollution

A compound pollution and non-destructive testing technology, which is applied in measuring devices, material analysis through optical means, instruments, etc., can solve problems such as increasing the difficulty of conventional testing, inability to achieve non-destructive testing, and poor accessibility of mangroves

Active Publication Date: 2015-08-05
PEKING UNIV SHENZHEN GRADUATE SCHOOL
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Problems solved by technology

The poor accessibility of mangroves increases the difficulty of routine detection; at the same time, conventional detection methods cannot achieve non-destructive testing

Method used

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  • Nondestructive testing method for plant response combined pollution
  • Nondestructive testing method for plant response combined pollution
  • Nondestructive testing method for plant response combined pollution

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Embodiment 1

[0029] In order to make the object, technical solution and advantages of the present invention more clear, the present invention simulates the compound pollution environment through the compound stress control experiment, and detects the plant's response to the compound pollution through the detection method of the present invention.

[0030] (1) Compound stress control experiment: collect or cultivate mangrove seedlings with consistent growth in the field, cultivate and slow down the seedlings; conduct stress experiments by simulating a multi-gradient compound stress environment; maintain flooded / non-flooded simulated tides during the cultivation process environment.

[0031] Specifically, the experimental materials of this embodiment are mangrove seedlings collected in the wild with uniform growth. The cultivation of the experimental material of the present invention is completed under the following conditions: the bottom is completely closed in plastic pots, and 3 kg of san...

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Abstract

The invention provides a nondestructive testing method for plant response combined pollution. The method comprises the following steps: acquiring a thermal infrared image of plants, processing and analyzing the thermal infrared image, thereby obtaining a leaf temperature value and a reference leaf temperature value; calculating the transpiration diffusion coefficient of the plants, and performing preliminary analysis on the combined pollution condition of the plants based on the leaf temperature value and the transpiration diffusion coefficient; and measuring the stomatal conductance, transpiration intensity and photosynthetic rate of the plants by using a photosynthesis system, and performing comparison validation analysis on the combined pollution condition of the plants. According to the method disclosed by the invention, the response information of the plants on the combined pollution can be rapidly, nondestructively and accurately detected.

Description

technical field [0001] The invention relates to the field of plant detection, in particular to a method for non-destructive detection of plant response to complex pollution based on infrared thermal imaging technology. Background technique [0002] Any object with a temperature above absolute zero will have its own molecules and atoms move randomly, and radiate thermal infrared energy continuously. Infrared thermal imaging technology is based on this principle. After the signal is converted into an electrical signal, it is amplified by the imaging device to simulate the spatial distribution of the surface temperature of the scanned object, forming a video signal and transmitting it to the display screen or monitor to obtain a thermal image corresponding to the thermal distribution of the object surface. From being mainly used in the military at the beginning, to the later application in civilian industries such as industry, agriculture, fire protection, and forest management...

Claims

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Application Information

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IPC IPC(8): G01N21/84
Inventor 李瑞利邱国玉沈小雪朱勇胜
Owner PEKING UNIV SHENZHEN GRADUATE SCHOOL
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