Abstract
To explore the correlation and spatial variation law of cadmium (Cd) in the soil around enterprises in the Fujiang River Basin, Global Moran's I and Anselin Local Moran's I were used to analyze the correlation, and the spatial structure was analyzed by using semivariogram. The results show that: the overall level of Cd in the soil around the enterprises in Fujiang River Basin is relatively low, which does not exceed the risk screening value of the national soil environmental quality standard in China (GB15618-2018), and only a few parts exceeded the risk screening value; The spatial correlations of Cd vary with the directions and distances. The distribution area of high-value clustering points and abnormal value points of soil Cd is small, most of the area belongs to the low-value cluster and insignificant points, which correlates with the number of distributed enterprises and the geological background to some extent. The spatial variation of Cd in soil is of moderate intensity, and the spatial differences vary with the directions, according to the order from large to small: 0° > 90° > 45° > 135°, the spatial differences are consistent with the distribution of local cold hot spots and outliers.
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This article is funded by Shandong Provincial Natural Science Foundation (ZR2021MD101) and National Natural Science Foundation of China (No. 41202165, No.41102149).
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Jiaguo, R., Kun, F., Chenxue, S. et al. Analysis of correlation and variation of cadmium in soil around enterprises in Fujiang River Basin. Environ Earth Sci 81, 199 (2022). https://doi.org/10.1007/s12665-022-10308-w
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DOI: https://doi.org/10.1007/s12665-022-10308-w