The Eco-city Planning of old Districts in Lanzhou;

Seasonal variation characteristics of element concentration of street dust in Lanzhou;

Investigation of Household Drinking Water in Lanzhou City;

Investigation on the seed plant flora of the wetland along the Yellow River in Lanzhou City;

Research on current condition and developing countermeasure of community sports in Lanzhou City;

Study on the Timing of Lanzhou City Leapfrog Development from the Space Perspective;

Research on hazardous waste management information system based on GIS——A case of hazardous waste management information system of Lanzhou City;

Dynamic Analysis to the Sustainable Development of Cities in Northwest Semi-arid Areas: A Case Study of Lanzhou City;

Regularities and prevention-controlling measures of air pollution in Lanzhou City;

Magnetic Characteristics of Street Dust in Lanzhou and Its Environmental Significance;

Mineral Compositions of Individual Particles in the Inhalable Particulate Matter in the Lanzhou Air during Heating Period;

Magnetic Property of Lanzhou Dustfall and Its Implication in Urban Pollution;