Figure 1
From: The effects of nitrogen addition on dissolved carbon in boreal forest soils of northeastern China
Mean ± 1 Std. Dev. of Soil DOC or DIC content vs soil layer (organic or mineral) for different N addition type treatments (A,B) and different N addition level treatments (C,D). LN means low = level N addition, MN = middle-level N addition, and HN = high-level N addition. Different lowercase letters indicate significant differences among treatment. Data collected over the 2010 growing season (May-September) at the Kailaqi farm of Genhe Forestry Bureau, located in the northern Great Xin’an mountain range, northern China.
