Effect of AMF diversity on ecosystem multifunctionality
Ecosystem multifunctionality under high AMF diversity was significantly
greater than that under low AMF diversity (p < 0.001,
Table 1, Figure 2), no matter under 0, 1, or 6 GCFs. Under the N
addition treatment, ecosystem multifunctionality was highest in the
absence of AMF, with no significant differences between low and high AMF
diversity treatments. Under pesticide and saline-alkali treatments, no
significant differences were observed ecosystem multifunctionality among
the three AMF treatments. Under the control, microplastic, drought, and
multiple GCFs treatments, ecosystem multifunctionality in high AMF
diversity treatment was much higher than that in low AMF diversity
treatment. The number of GCFs had a significant effect on ecosystem
multifunctionality (p < 0.001, Table 1, Figure 2).
Multiple GCFs significantly affected ecosystem multifunctionality under
low AMF diversity, reducing it by 6.88% compared to a single GCF, while
no AMF addition resulted in a 4.23% reduction. The smallest impact
occurred with high AMF diversity, showing a 3.31% reduction compared to
a single GCF. AMF diversity and the number of GCFs did not interactively
affect ecosystem multifunctionality.