Fig. 7

Correlation heat map between soil physicochemical properties and bacterial (A) and fungal (B) community (phyla level) of different saline-alkaline soils. Variation partitioning analysis (VPA) of the effects of soluble salt ion components and basic soil characteristics on bacterial (C) and fungal (D) communities. Soluble salt ion components include Cl−, SO42−, HCO3−, CO32−, Ca2+, Mg2+, Na+, K+, EC. Basic soil characteristics include pH, available nitrogen (AN), available phosphorus (AP), available potassium (AK), soil organic matter (SOM).