Study on phreatic water resources dynamic state in clench and sloping land;

Characteristics of valley-slope break zone in the western slope of Songliao Basin and its control over reservoir distribution;

This paper,taking the Mengjia River gully area of Junzilan Park in Changchun City of Jilin Province as an example,studied the longitudinal differentiation regularity of heavy metals in topsoil covered with different vegetation in gully area.

disease research of Valley terrain highway subgrade and prevention measures;

The index system and method for soil productivity evaluation on the slope landin the Loess Plateau;