Project supported by the Ministry of Science and Technology of China (No. 2003CB415201);National Natural Science Foundation of China (No. 40671120);the International Atomic Energy Agency (Nos. 12322/RO and UK-12094);the Young Scientist Foundation of Sichuan Province (No.06ZQ026-030)
Purple soils are widely distributed in the Sichuan Hilly Basin and are highly susceptible to erosion, especially on the cultivated slopes. Quantitative assessment of the erosion rates is, however, difficult due to sma...