On heat source of central heat supply in main city zone of Jincheng;

(2)According to the ecological environment situation of main city zone of Wuhan, the article establishes health evaluation index system of urban green land in this area.

Pollution status of PM 10 at different type construction sites in Chongqing downtown areas was reported in this paper.

In the course of making efforts to build Chongqing into the economic center of the upper reaches of the Yangtze River,and showing its influential function for the great development of western China,it is of key impartance to group and spread the industry in the downtown areas.

In the course of making efforts to build Chongqing into the economic center of upspring parts of the Yangtze River, and showing its influential function for the great development of western China, it is quite important to plan the industry properly in the downtown areas.

The evaluation and analysis of the street greenbelt system of the main urban area in Handan city have been conducted according to some designed examples.

This paper analyzes on the main difficulties faced by the statistic work in the main urban areas,probes into the approaches of the statistic management and statistic investigation in the main urban areas,and advances some corresponding countermeasures and suggestions in aspects of the statistic management structure,the system method,and the statistic basic work,etc.

Sustainable development assessment on nine districts of Chongqing city;

Based on this, the paper analyses the process, character and future trend of location selection of villa in the main city area of Kunming.