Influences of land disturbance and management regime on infiltration and runoff
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Authors: A. R. Burk, D. S. Chanasyk, and E. Mapfumo
Date: 1999
Journal: Canadian Agricultural Engineering
Volume: 41
Number: 3
Pages: 127-134
Summary of Methods: Runoff, infiltration rates and accumulated infiltration were measured near Keephills, Alberta (53� 30� N; 114� 27� W) on two pasture sites, and three hayfields with one hayfield established on reclaimed mine land. Three management treatments (hayed, mowed, and fallow) were applied to the hayfield plots and two treatments (grazed and fallow) were applied to the pasture plots. Grazing occurred at moderately heavy levels. Soil bulk density was measured three times during the study. Rainfall simulations were run at each site once in late July and again in late September. Runoff, infiltration rates and accumulated infiltration were measured.
Article Summary / Main Points: Runoff under rainfall simulation was low on all treatments, even under high rainfall intensity. Both reclaimed and non-mined soils had similar infiltration variables. Hayed and mowed treatments had higher infiltration rates and accumulated infiltration than soils under fallow in two of the three sites. The relationship between infiltration rate and time during the first twenty minutes of simulation was influenced by management practices and varied among sites. Grazing did not have a major effect on near-surface soil porosity or infiltration.
Vegetation Types: All Vegetation Types
MLRA Ecoregions: Not Applicable
Agrovoc Control Words: Grazing Mining Infiltration water
Article Review Type: Refereed
Article Type: Experimental Research
Keywords: infiltration, runoff, grazing, reclaimed mineland, rainfall simulator
Annotation: These findings illustrate that infiltration rates on soils under three management regimes that reclaimed soils can have similar infiltration rates as non-mined soils, though care should be used when applying these findings as only one non-mined site was tested. Grazing management also did not affect infiltration rates.
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