The physicochemical parameters of the surface and HZ, shown as the mean and standard deviation. The P I, P II and P III, sampling sites were at I—10 cm, II—25 cm, and III—45 cm. SD, standard deviation
The physicochemical parameters of the surface and HZ, shown as the mean and standard deviation.The P I, P II and P III, sampling sites were at I—10 cm, II—25 cm, and III—45 cm. SD, standard deviation;
