(table 2), while there was no correlation between available phosphorus and K in 10-30cm and 30-50cm,
and the difference of surface soil available K was significant. The differences among available
phosphorus, potassium and total were not significant correlation in 10-30cm, and the correlation between
available phosphorus and soil organic matter, available potassium, total nitrogen, and available nitrogen
were not significantly. The difference of available phosphorus, soil organic matter and available nitrogen
content in 30-50cm showed negative correlation, but no significant, and coefficients were -0.024 and -
0.115. The difference of available nitrogen and potassium in 30-50cm showed no significant, and the
correlation coefficient is -0.028