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Traditional chemical methods have mainly focused on the variation and transportation of elements in the aquifer layer. The primary goal of this paper was to establish a spatial distribution model of chemical elements in the critical zone (CZ). The effects of anthropogenic activities (AA) and CZ structure on these models are quantitatively described. To this aim, 200 sediment and pore water samples...
Compared with research on spatial variation of hydraulic conductivity (K), less effort has been made researching different grades of K value in the North China Plain (NCP). In this study, 3D spatial distribution models of different grades of K were established by considering the effects of clay fraction content and uniformity coefficient (Cu). The K value can be divided into five grades: very low,...
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