The spatial distributed characteristics of soil erosion on straight hillslopes before and after erosive rainfall are studied with ~~7Be trace method and field investigation. The results showed that within 20 m of slope length, ~~7Be inventory at 0~2 cm deepth of soil profile in different sloping locations was not significant before occurrence of erosive rainfall, but after occurrence of erosive rainfall in 2004, ~~7Be inventory in different sloping locations was great significant. ~~7Be inventory at 0~2 cm ...
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