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Soil pollution prediction method and system for heavy metal stable pollution source

A soil pollution and prediction method technology, applied in the field of agriculture, can solve the problems that cannot reflect the dynamic changes of the pollution level, cannot predict the risk, etc.

Active Publication Date: 2020-07-17
BEIJING RES CENT FOR INFORMATION TECH & AGRI
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Problems solved by technology

[0005] In the current heavy metal pollution risk diffusion assessment application, the pollution assessment is carried out using monitoring points within a certain time range, which cannot reflect the dynamic changes in the pollution level, nor can it predict the risk.

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  • Soil pollution prediction method and system for heavy metal stable pollution source
  • Soil pollution prediction method and system for heavy metal stable pollution source
  • Soil pollution prediction method and system for heavy metal stable pollution source

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Embodiment Construction

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0038] In the study of dynamic models based on numerical simulation, the spatial scale adaptability is usually poor. On the one hand, the models that are applicable on small scales often perform poorly on medium and large scales. Even if the model can be applied at different spatial scales, the parameters There may also be differences in order of ...

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Abstract

The embodiment of the invention provides a soil pollution prediction method and system for a heavy metal stable pollution source, and the method comprises the steps: dividing a target pollution regioninto a plurality of grids with preset sizes, and building a cellular automaton model; for each grid at the current moment, enabling the cellular automaton model to calculate the probability of pollution of each grid at the next moment according to the probability of pollution of a plurality of neighborhood grids of each grid; repeating the process for a preset number of times, and predicting theprobability of pollution of each grid at a preset moment. According to the embodiment of the invention, a cellular automaton geographic space simulation framework is adopted, and the probability of pollution of the grid at the next moment is predicted through the probability of pollution of neighborhood grids around the grid, so that dynamic simulation of soil heavy metal pollution risk diffusionis realized, and the spatial scale adaptability and precision of simulation are improved.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a method and system for predicting soil pollution of heavy metal stable pollution sources. Background technique [0002] Risk assessment is the process of identifying and analyzing potential or future negative impacts. In the risk assessment of soil heavy metal pollution, it is to quantitatively analyze the related factors and pollution degree of soil heavy metal pollution in the future. [0003] The current soil pollution risk assessment work is mainly based on the survey data of soil pollution status at a certain point in time to describe the status of major pollutants and the scope of soil and groundwater pollution, and to assess agricultural product quality and safety risks, public health risks, or ecological risks. Some studies have also used diffusion simulation models to describe the dynamic process of heavy metal pollution. [0004] For example, the diffusion of h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/26
CPCG06Q10/04G06Q10/0635G06Q50/26
Inventor 郝星耀潘瑜春李淑华董士伟李晓岚
Owner BEIJING RES CENT FOR INFORMATION TECH & AGRI
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