With the city expanding,energy consumption and environment destroying show negative effect on the thermal micro-environment of urban areas.

This paper elaborates the importance and effect of a network monitoring the non-point sources pollution of groundwater in urban areas.

Based on the discussion of modern regionalized urban spatial syestem pattern, the paper revealed the scatteredness of urban areas in China s northwest.

In this paper, urban area is taken as the research object and post-earthquake fire risk assessment in urban area is taken as the research content, a model of post-earthquake fire risk assessment in urban area is established.

Study on intelligent decentralized control for urban region traffic;

Based on the statement of the rapid development of urban regions and the need for legislation, this paper analyzes the progress and limi- tation of the Urban and Rural Planning Law in re- gional planning and then makes suggestions on the improvement of clause interpretation, the amendment of the law and the making of subordinate regulations.

According to the principle of decomposition-coordination for large-scale systems,the whole urban traffic network system was divided into three subsystems of urban region,urban expressway and urban region-expressway.