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Soil solutions at 15 cm and 60 cm depths under a Korean pine and broadleaf mixed forest (>200 years old) at Changbai mountain, northeast China, were sampled using porous ceramic suction cups from July 2006 to October 2007, to study the effects of nitrogen (N) addition on the concentrations of dissolved nitrous oxide (N 2 O) and carbon dioxide (CO 2 ), dissolved organic matter and...
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