Consequently, in t he eroded area not only is the intensity of runoff increased, but also runoff be gins sooner, thus aggravating the potential for flooding and waterlogging.

• 指出水土流失导致了流域环境承受和抗御自然灾害的能力下降，在同量降雨条件下，是诱发和加剧洪涝灾害的重要原因；