2.4 Data Analysis
The significant differences among the treatments were analyzed using
analysis of variance (ANOVA) in a factorial design. A three-factor ANOVA
on the influence of species, drought, and high temperature was conducted
in IBM SPSS Statistics for Windows, version 24.0 (IBM Corp., Armonk, NY,
USA). The trend chart of different indicators under different treatments
was created in Origin 8.0. Canoco 4.5 was used for detrended
correspondence analysis (DCA) and redundancy analysis (RDA). The data in
the figures are represented as the mean ± standard error.