Analysis data indicated that the AN showed an increasing trend with the chronosequence, while the AP and AK showed an opposite trend.
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Changes in Soil Physico-Chemical and Microbiological Properties During Natural Succession: A Case Study in Lower Subtropical China.
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The sentences
As shown in Figure 3C , the AK content showed a decreasing trend with increasing soil depth in each forest, the average value of which was significantly decreased in the order EF (75.53 ± 6.81 mg/kg) > MF (49.13 ± 6.39 mg/kg) > LF (26.45 ± 3.73 mg/kg) for the 0–100 cm depth.