2/15/2023 0 Comments Duluth mn soil typeTwo-way ANOVA indicated that differences in water chemistry among soils were due to moisture, parent material, and their interaction. In the glacio-lacustrine hydrosequence, depth to subsurface concentrations of oxalateextractable Fe (≥800 g m −3) decreased with increasing wetness. Differences in soil morphology associated with increasing wetness included: (i) increasing thickness of O and A horizons, (ii) decreasing thickness of the Bt horizon (glacio-lacustrine hydrosequence), (iii) disappearance of E and Bk horizons (glacio-lacustrine hydrosequence), and (iv) decreasing depth to redoximorphic features. With decreasing depth to groundwater, soils in both hydrosequences were increasingly reducing redox potentials were consistently negative in the Borosaprist. In this study, soils derived from glacio-lacustrine and glacio-fluvial parent materials in northern Minnesota beaver meadows (i.e., former beaver ponds that have drained and revegetated) were studied to: (i) describe soil morphology, (ii) analyze soil and solute chemistry, and (iii) statistically evaluate the relative influence of hydrology and soil type on solute chemistry. Previous research about the biogeochemistry of beaver ( Castor canadensis Kuhl) impoundments has generally overlooked the influence of soil type on solutes.
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