integrated based on sustainable land uses, including self-sufficiency in grain production, the protection of woodlands, and the development of trees for their economic yield to make full use of natural resources. This study aims to formalize recent findings in the small Wangjiaqiao watershed and investigates the runoff and erosion processes that were subject to different rainfall regimes and land use changes. The main objectives of this study are the following: (1) to analyze the effects of land use change on runoff and erosion; (2) to determine the response of runoff and soil erosion to different rainfall regimes; and (3) 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.