Fig. 2

Soil characteristics of the sampling sites along the elevation gradient. a Total N, b NH3-N, c NO3-N, d organic matter, e available P, and f pH. Regression coefficients (R (Atkin et al. 2006)) and P values are given for e and f

Soil characteristics of the sampling sites along the elevation gradient. a Total N, b NH3-N, c NO3-N, d organic matter, e available P, and f pH. Regression coefficients (R (Atkin et al. 2006)) and P values are given for e and f