Methods of Soil Resampling to Monitor Changes in the Chemical Concentrations of Forest Soils. - Lawrence GB; Fernandez IJ; Hazlett PW; Bailey SW; Ross DS; Villars TR; Quintana A; Ouimet R; McHale MR; Johnson CE; Briggs RD; Colter RA; et al. (Journal of visualized experiments : JoVE, 2016)