In order to decrease the impact of traffic engineering construction on the ecological environment of Qinghai-Tibetan Plateau, we have worked out the rainstorm intensity formula of three cities through analysis of the rainstorm characteristics of Qinghai-Tibetan Plateau area. Slope erosion tests of pure turf and three dimensional mesh cushion grass are performed, respectively with typical soil of the Qinghai-Tibetan Plateau. Thus we have gained two kinds of turf scouring velocities, which are compared with that of Xi'an loess. Considering the influence of slope micro topography, the slope flow is generalized as parabolic shallow channeling, and the relevant parameters are determined through field measurement.. In addition, combind with indoor scouring test's results an ecological slope protection scheme for the four regions is proposed, with calculation of slope flow parameters of Xining, Yushu, Lhasa, Delingha.

Qinghai-Tibetan Plateau  /  ecological slope protection  /  scouring test  /  rainstorm intensity formula  /  ephemeral gully flow