Holocene Environmental Change of Pedogenensis and Sandstorm Activity in the Midwest Region of Guanzhong Plain;

UnderstandingHolocene environmental change andsandstorm activity is very important for us to enrichthetheoryofHolocene environmental change,realize the geographicalenvironment at the present stage,and impel people to develop with natural environment in harmony.

To deeply understand the Holocene environmental change of pedogenesis and sandstorm activity has very important significance in enriching the theory of Holocene environmental change,realizing the sandstorm activities at present,and making people and nature develop harmoniously.

Through analyzing the distribution and formation mechanism of the motive sand?flood of Cuona lake on Qingzang railway,putting forward a rational line?determnation principle and a series of engineering treatment measure,in order to decrease the damage of wind and sand to the railway at least.

Typical analysis of the sand-drift activity in lower reaches of Yongding River;

This research experimentation was carried out in drifting sand land in beach of Yongding river in Beijing in the sand-drift activity season,selecting drifting sand land and its surrounding sparse wild grass land as experimentation materials.

The water-heat-wind combination rule and its relationship with blown-sand activity in Minqin were analyzed based on the seasonal and annual meteorological data from 1956-2006.