to study
the role of different
land use
types on soil erosion
control under different rainfall regimes. The natural resources, land use patterns, and population densities in the Wangjiaqiao watershed are typical of the surrounding region (Bu et al., 2008; Feng et al., 2008; Shi et al., 2004; Wan et al., 2010). Therefore, the results derived from this small watershed within the TGA give an indication of possible trends occurring throughout the TGA.