Using a Rainfall Simulator to Define the Effect of Soil Conservation Techniques on Soil Loss and Water Retention

In the Czech Republic, Universal Soil Loss Equation provides basis for defining soil protection strategy. Field rainfall simulators were used to define actual cover-management factor values of most extensively seeded crops in Republic. The second purpose was assess rainfall-runoff ratio different and management contribute debate water retention effectiveness during approaching climate change. methodology focused on multi-seasonal measurements cover important phenological phases. intensity 60 mm·h?1 30 min a plot size 16 m2. More than 380 simulation experiments provided data. conservation techniques proved have significant effect runoff reduction. Conventionally maize can reduce around 50%. However, combined with reduced tillage or direct seeding 10–20% ‘dry’ conditions 12–40% ‘saturated’ conditions. average loses 4.3 Mg·ha?1 per experiment. loss 0.6 0.16 Mg·ha?1, respectively. A comparison original USDA showed that it is desirable redefine crop factor.