The Evolutionary Process Of The Sloping Field System And The Erosive Environment During Holocene Period In Loess Plateau

Based on the analysis of erosive environment on the Loess Plateau, as well as temporal and spatial variation of the erosive environment in the Loess Plateau since the Holocene ,We focused on analysis of a typical loess section located in HuanXian county in GanSu province . At the same time, analyzed temporal and spatial evolution the Loess Plateau by selecting 32 different loess sections in the Loess Plateau .Calculated the empirical formula of erosive yield in the Loess Plateau since the Holocene by several proxy indicators of the environment such as susceptibility, granularity index. Calculated the empirical formula of environmental elements by Integrating the geological data and GIS spatial analysis method . Constructed deductive technology of the erosive environmental factors in the geological history . Constructed erosive process research methods of the slope system in Loess Plateau during the Holocene . Calculated erosive intensity and analyzed its spatial variation of the Loess Plateau during the Holocene .Based on the above conclusions , there have be completed the Study of erosive environmental evolution in the Loess Plateau during the Holocene .I. Constructed deductive technology of the erosive environmental factors in the geological history.II. Constructed erosive process research methods of the slope system in Loess Plateau during the Holocene by analyzing the typical loess section located in Huanxian county of GanSu province.III. Calculated the spatial variation of the erosive environmental factors of the Loess Plateau during the Holocene such as precipitation ,temperature and plants types by analyzing 32 typical loess sections located in Loess Plateau .IV. Calculated erosive intensity and analyzed its spatial variation of the Loess Plateau during the Holocene.