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Forest Ecosystems
Fig. 1 | Forest Ecosystems

Fig. 1

From: Effects of simulated acid rain on soil respiration and its component in a mixed coniferous-broadleaved forest of the three gorges reservoir area in Southwest China

Fig. 1

Dynamic variation in 5-cm soil temperature (A and C), 5-cm soil water content (B and D), soil respiration (E), and heterotrophic respiration (F) under different treatments. Vertical bars represent standard errors (n = 4). ST indicates the 5-cm soil temperature. SM indicates the 5-cm soil moisture content. UTCK, UT4.0, UT3.25, and UT2.5 indicate control, pH 4.0, pH 3.25, and pH 2.5 simulated acid rain in the untrenched plots, respectively; TCK, T4.0, T3.25, and T2.5 indicate the control, pH 4.0, pH 3.25, and pH 2.5 simulated acid rain in the trenched plots, respectively

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