Effects of managed and abandoned conditions on soil pH
In the 0–60-cm layers, soil pH was not significantly different between the managed, abandoned tea plantations and adjacent forests (Fig. 4, p > 0.05). In the 60–120-cm layers, the soil pH of managed tea plantations was significantly lower than that of abandoned tea plantations and adjacent forests (Fig. 4, p < 0.05). Soil pH of the managed plantations decreased with increasing soil depth, while there was no trend with increasing soil depth for abandoned tea plantations and adjacent forests (Fig. 4, p > 0.05).