Abstract: To explore the effect of the different stubble height and mulching biomass on soil wind erosion, a field experiment by using the quadratic general rotary unitized design was conducted in a windy desert area of western Liaoning Province. Results showed that the wind erosion of the routine farming practices was 15.74 t·hm^-2. The stubble height and the straw mulching quantity significantly affected soil wind erosion, and the effect of straw mulching quantity was greater than that of the stubble height. The stubble height and mulching interactively affected soil wind erosion. When the stubble height was higher than 18.0 cm and the straw mulching quantity was more than 2500.0 kg·hm^-2, the intensity of soil wind erosion reduced significantly (up to 54%). The established regression model of stubble height and straw mulching quantity showed that, when the stubble height and the straw mulching quantity were 33.9 cm and 4255.7 kg·hm^-2, respectively, the intensity of soil wind erosion in cropland was the lowest, with only 0.42 t·hm^-2.

Key words: marine organism, high seas in North Pacific Ocean, radioactive nuclide, monitoring, Fukushima nuclear accident