3.4 Relationship between soil physicochemical properties and AM
fungal community composition under N addition conditions
The RDA analysis of AM fungi and soil physicochemical properties showed
that six soil physicochemical factors could explain 82.15% of the
variation in AM fungal communities as shown in Fig. 5.
Soil pH and
NO3--N、AP、NH4+-N
and TN content significantly influenced the distribution of AM fungal
species.