The study of urban outdoor thermal environment was carried out in one of the mountainous cities by using geography information system(GIS) technique which is connected with predicting and evaluating models for the out...The study of urban outdoor thermal environment was carried out in one of the mountainous cities by using geography information system(GIS) technique which is connected with predicting and evaluating models for the outdoor thermal environment, monitoring data and simulating data. A prediction and evaluation system were set up. A typical mountainous city, i.e., Yunyang city in Chongqing in China, was taken as an example, its urbanization trend and population growth was predicted and evaluated. The heat island intensity and its trend were simulated, the temperature field, velocity field and the humidity field were analyzed. The results show that GIS is an effective tool to deal with the outdoor thermal environment, especially for the mountainous cities with special geographical particularities. GIS can be used in the environmental management and the city planning especially for the mountainous cities.展开更多
This paper takes metropolitan area of Chongqing Municipality as an example. Chongqing, located at the tail area of the Three Gorges Reservoir, is a typically in-land hilly city in China. A series of serious eco-enviro...This paper takes metropolitan area of Chongqing Municipality as an example. Chongqing, located at the tail area of the Three Gorges Reservoir, is a typically in-land hilly city in China. A series of serious eco-environmental hazard affecting hilly city have appeared: the forest landscape has been fragmented; the stability of ecological system has not been maintained; soil erosion has been serious; geological disasters have become more and more frequented; the phenomenon of city "heat islands" is obvious; and environmental pollution is worsened with low physical self-puri-f ication. All of the hazards above will affect ecological security of the tail area of the Three Gorges Reservoir and sus-tainable development of Chongqing. In order to guarantee ecological security and health of Chongqing and the Three Gorges Reservoir, the countermeasures for ecological infrastructure construction are put forward: quickly drawing up ecological infrastructure planning of Chongqing Municipality, strengthening the integration and continuation of hilly-water spatial pattern, maintaining the diversity and stability of local ecosystem, establishing the green space system in-cluding suburban forest, farmland and green space, recovering wetland ecosystem, optimizing industrial structure and urban spatial distribution, developing recycling economy, establishing ecological infrastructure monitoring network and information forecast system, carrying out ecological management for Chongqing Municipality and so on.展开更多
基金Project (50278099) supported by the National Natural Science Foundation of China
文摘The study of urban outdoor thermal environment was carried out in one of the mountainous cities by using geography information system(GIS) technique which is connected with predicting and evaluating models for the outdoor thermal environment, monitoring data and simulating data. A prediction and evaluation system were set up. A typical mountainous city, i.e., Yunyang city in Chongqing in China, was taken as an example, its urbanization trend and population growth was predicted and evaluated. The heat island intensity and its trend were simulated, the temperature field, velocity field and the humidity field were analyzed. The results show that GIS is an effective tool to deal with the outdoor thermal environment, especially for the mountainous cities with special geographical particularities. GIS can be used in the environmental management and the city planning especially for the mountainous cities.
基金National Natural Sci-ence Foundation of China (Grant No. 40301015)Chongqing Soft Sciences Plan Project (Grant No. CSTC2007CE9023)Science and Technology Project of Chongqing Municipal Education Commis-sion (Grant No. KJ070803)
文摘This paper takes metropolitan area of Chongqing Municipality as an example. Chongqing, located at the tail area of the Three Gorges Reservoir, is a typically in-land hilly city in China. A series of serious eco-environmental hazard affecting hilly city have appeared: the forest landscape has been fragmented; the stability of ecological system has not been maintained; soil erosion has been serious; geological disasters have become more and more frequented; the phenomenon of city "heat islands" is obvious; and environmental pollution is worsened with low physical self-puri-f ication. All of the hazards above will affect ecological security of the tail area of the Three Gorges Reservoir and sus-tainable development of Chongqing. In order to guarantee ecological security and health of Chongqing and the Three Gorges Reservoir, the countermeasures for ecological infrastructure construction are put forward: quickly drawing up ecological infrastructure planning of Chongqing Municipality, strengthening the integration and continuation of hilly-water spatial pattern, maintaining the diversity and stability of local ecosystem, establishing the green space system in-cluding suburban forest, farmland and green space, recovering wetland ecosystem, optimizing industrial structure and urban spatial distribution, developing recycling economy, establishing ecological infrastructure monitoring network and information forecast system, carrying out ecological management for Chongqing Municipality and so on.
