Economic and Environmental Geology

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Fig. 7.

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Fig. 7. Variation in the content of soil organic matter (SOM) within soil (a) and the concentrations of total organic carbon (TOC) within the leachate solutions after artificial rainfall events (b, c, and d) during the period of artificial injection of carbon dioxide. I: initial, PV: pore volumes, 5C: 5 pore volumes in the control tests with no injection of carbon dioxide, NCS: non-cultivated soil, MCS: maize-cultivated soil, and SCS: soybean-cultivated soil.
Econ. Environ. Geol. 2021;54:409-25 https://doi.org/10.9719/EEG.2021.54.4.409
© 2021 Econ. Environ. Geol.