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.

Development research on urban and rural integration based on regional city construction;

New situation of global city regional development;

To some extent, they have the qualification and potential to become city region.

Under the background of globalization and informatization,the great changes have taken place in the research on city region evolvement factors,more and more scholars focus on both modern factors and traditional factors which affect city region evolvement.