Distribution characteristics of super(137)Cs in soil profiles under different land uses and its implication

This paper presents a study of the distribution of super(137)Cs in soils under three different land uses in a semiarid watershed. The results showed the average inventory of super(137)Cs in the cultivated land, woodland and grassland was 888, 1489 and 1650 Bq/m super(2), respectively. The pattern of depth distribution of super(137)Cs in the soil profiles with cultivated land, woodland and grassland was disturbed, eroding and aggrading, and normal profiles, respectively. The coefficient of variation of super(137)Cs inventory varied from 8.9 to 38.8 % for different land uses.