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Table 5 Median values of soil solution pH, NH4 and NO3 concentration as observed at 60–100-cm depth (Obs.) and predicted for 1990 (Mod.) by SMART2 for forests (PIN, SPR, DEC)

From: Modelling impacts of acid deposition and groundwater level on habitat quality and plant species diversity

Soil type Na pH NH4
(molc m−3)
NO3
(molc m−3)
Obs. Mod. Obs. Mod. Obs. Mod. Obs. Mod.
Sand poor 27 43226 4.0 3.8 0.08 0.01 0.25 0.85
Sand rich 28 10000 3.8 3.8 0.08 0.00 0.33 0.38
Peat 30 7724 3.8 3.8 0.24 0.02 0.02 0.07
Loess 40 826 4.3 3.8 0.04 0.01 0.72 0.50
Clay 13 3428 6.3 5.8 0.00 0.07 0.11 0.47
  1. a N represents the number observed and simulated soil vegetation combinations