I am a teacher and scientist at the Ankang University, china, holding a PhD in natural sciences from chinese academy of forestry sciences and a Diploma in ecology from the Agricultural University of Hebei , china. I am specialized in forest ecology and the watershed hydrological process simulation. My current research focuses on process of snowfall, snow cover, snow melt and its runoff formation and the impact of dimesion on hydrological process. My PhD concerns the impact of landuse and climate change on hydrological processes in the upstream of Jinghe watershed, loess Plateau.