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Figure 4 | Environmental Sciences Europe

Figure 4

From: Accounting for canopy drip effects of spatiotemporal trends of the concentrations of N in mosses, atmospheric N depositions and critical load exceedances: a case study from North-Western Germany

Figure 4

Results of the CART analysis. The most powerful predictors for N concentrations in mosses sampled in 2012 are the sampling point (open field, forest stand) (level 1), distance to interstate roads in metres (Dist_Int), moss species (level 2), distance to animal housings in metres (Dist_Ani), distance to highways in metres (Dist_High) (level 3).

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