High-precision soil heavy metal concentration space prediction method

The invention discloses a high-precision soil heavy metal concentration spatial prediction method. The method comprises the following steps: step 1, data acquisition; step 2, data preprocessing; step 3, data inversion and analysis; 4, heavy metal concentration prediction; and step 5, precision estim...

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Hauptverfasser: LIAO XIUYING, CHENG HUI, LIANG JI
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention discloses a high-precision soil heavy metal concentration spatial prediction method. The method comprises the following steps: step 1, data acquisition; step 2, data preprocessing; step 3, data inversion and analysis; 4, heavy metal concentration prediction; and step 5, precision estimation. The SIF with sensitive response to the heavy metal concentration is introduced as an environment collaborative variable, so that the prediction precision of the heavy metal concentration can be greatly improved, the dependence of a common interpolation method on the average representativeness of the whole sample can be overcome, and the representativeness of individual sample points is effectively utilized, so that the limitation of sufficient sample quantity and uniform distribution is overcome; and high-precision space prediction can also be realized for a small number of samples and non-uniform distribution in the region. 本发明公开了一种高精度土壤重金属浓度空间预测方法,包括以下步骤:步骤一,数据获取;步骤二,数据预处理;步骤三,数据反演与分析;步骤四,重金属浓度预测;步骤五,精度估算。