Soil heavy metal detection value correction method, device and computer storage medium

Abstract

The invention discloses a soil heavy metal detection value correction method, device and a computer storage medium. The soil heavy metal detection value correction method includes the steps that factors affecting the detection value of a soil heavy metal rapid detection instrument are determined; for soil samples used for calibration modeling, by taking the soil heavy metal detection value detected by a laboratory analysis test method as an accurate value and taking the soil heavy metal rapid detection instrument detection value as a correction value, a mixed linear correction model is built;and model parameters of the mixed linear calibration model are estimated and verified, and the verified mixed linear calibration model is used as a soil heavy metal detection value correction model detected by the soil heavy metal rapid detection instrument in the future. The soil heavy metal detection value correction method, device and the computer storage medium are used for improving the detection accuracy of the soil heavy metal content of the soil heavy metal rapid detection instrument.

Description

technical field [0001] Embodiments of the present invention relate to farmland environment and soil environment quality technologies, and in particular to methods, devices and computer storage media for correcting detected values ​​of heavy metals in soil. Background technique [0002] With the rapid development of global agricultural economy, the environmental pollution caused by excessive heavy metals in farmland has attracted widespread attention. According to the first national survey on soil pollution, the overall rate of soil pollution in the country is 16.1%, and the soil point rate of cultivated land is 19.4%. The main inorganic pollutants in the soil are heavy metals such as cadmium, nickel, copper, arsenic, mercury, and lead. These heavy metal elements can enter the food chain through agricultural products. After the human body ingests heavy metal elements, it will cause acute and chronic poisoning, which seriously endangers human health. Heavy metal elements in fa...

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Problems solved by technology

However, the above correction methods are all based on a single soil sample. In actual testing, soil composition, type, heavy metal content and other factors in different regions are different. Correction cannot meet the needs of accurate detection of soil heavy metal content in different regions

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