Method for generating comprehensive evaluation map of heavy metal pollution of polder soil
A comprehensive evaluation and heavy metal technology, applied in the direction of soil material testing, material inspection products, etc., can solve the problems of not analyzing the spatial characteristics in detail and affecting the accuracy of prediction results, etc.
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[0076] Such as figure 1 As shown, this implementation includes the following steps:
[0077] The first step is to obtain the contents of heavy metals arsenic and copper in the soil samples of the reclamation land sampling points in the Chongming Island area of Shanghai.
[0078] The second step is to perform data preprocessing on the content values of each heavy metal element in the soil sample at the sampling point, and obtain the quasi-interpolation sub-samples of each soil heavy metal element respectively.
[0079] The above data preprocessing refers to:
[0080] 2.1) Through the calculation and inspection of the skewed kurtosis of the content of heavy metal elements, check whether it meets the standard normal distribution condition H 0 , when it meets the standard normal distribution condition H 0 , proceed to the third step; otherwise, proceed to step 2.2);
[0081] The said standard normal distribution condition H 0 Refers to: the third moment of the content of ...
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