Soil health investigation and monitoring method based on spectrum

Abstract

The invention discloses a spectrum-based soil health investigation and monitoring method. The method comprises the following steps: S1, collecting a soil sample in a research area and measuring a field spectrum; S2, carrying out spectral data processing and chemical analysis testing; S3, acquiring and preprocessing aviation hyperspectral remote sensing data; S4, extracting soil health parameters and spectral feature information; S5, constructing a soil health parameter remote sensing inversion model; S6, performing aerial hyperspectral data soil health parameter mapping; and S7, carrying out soil health evaluation. The method has the advantages and effects that the hyperspectral remote sensing data are utilized to invert the soil health parameters, the monitoring range is wide, the monitoring speed is high, and large-area soil health investigation and dynamic monitoring can be quickly realized. The hyperspectral remote sensing data are utilized to invert the soil health parameters, the defects that the regional soil health condition is difficult to reflect through traditional sampling chemical analysis, an accurate soil background value is difficult to obtain through a spatial interpolation result, the reliability of an evaluation result is low and the like are overcome, and the result is relatively accurate and reliable.

Description

technical field [0001] The invention relates to a spectrum-based soil health survey and monitoring method, which belongs to the fields of remote sensing technology, geological survey and ecological environmental protection. Background technique [0002] With the continuous improvement of people's living conditions, people pay more and more attention to health. Health comes from eating, and food security is an important guarantee for human health. Unhealthy soil cannot grow safe food, so soil health monitoring plays an increasingly prominent role in ensuring the health of the whole people and realizing a healthy China. The traditional soil health survey and monitoring is mainly through laboratory chemical analysis. Although the measurement accuracy of sampling points is high, there are problems in time-consuming, energy consumption, pollution and other aspects; at the same time, it is difficult for point source data to reflect the health status of regional soil, and the resu...

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Problems solved by technology

[0003] The purpose of the present invention is to propose a soil health survey and monitoring method based on spectrum to realize the rapid survey and dynamic monitoring of soil health in view of the fact that the traditional soil health survey and monitoring technology proposed in the background technology cannot meet the needs of rapid survey and dynamic monitoring

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