Research Article
Soil Metals and Ectomycorrhizal Fungi Associated with American Chestnut Hybrids as Reclamation Trees on Formerly Coal Mined Land
Table 4
Mean concentrations of metals in drip line soils (mean ppm) with 95% confidence intervals (95% CI) compared with reference soils that were collected on site (no chestnuts planted), average background metal concentration in Ohio soils (ppm) [41], averages in Muskingum County [42, 43], and US topsoil ranges [44]. Asterisks () indicate differences at 0.05.
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