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(a)  ZJ (1 cm depth)
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(b) MSc (1 cm depth)
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(c) MSb (1 cm depth)
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(d) ZJ (5 cm depth)
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(e) MSc (5 cm depth)
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(f) MSb (5 cm depth)
Figure 3: Seasonal variation in soil temperature at 1 cm and 5 cm depths in the ZJ plot, MSc plot, and MSb plot in 2008. The solid black line, gray line, and broken line represent daily maximum, mean, and minimum soil temperatures, respectively, from early April to early September. Closed circles represent mean soil temperature at each point where soil respiration rate was measured ( ).