[Supply-demand level and development capability of Harbin urban ecosystem].

To measure the supply-demand level and the development capability of urban ecolsystem is the prerequisite in ensuring urban sustainable development. By using the analysis model of ecological footprint and the improved model of urban ecological carrying capacity, the utilization rate and supply degree of natural resources in Harbin City in 1998-2005 were quantitatively studied, with the supply-demand level and development capability of the City's ecosystem measured and analyzed comprehensively. The results showed that in 1998-2005, the demand of Harbin urban ecosystem was greater than its supply.

A case study predicting environmental impacts of urban transport planning in China.

Predicting environmental impacts is essential when performing an environmental assessment on urban transport planning. System dynamics (SD) is usually used to solve complex nonlinear problems. In this study, we utilized system dynamics (SD) to evaluate the environmental impacts associated with urban transport planning in Jilin City, China with respect to the local economy, society, transport, the environment and resources.

Simulation and evaluation on the eco-industrial system of Changchun economic and technological development zone, China.

Reasonable structure, adaptive patterns and effective regulation of society, economy and environment subsystems should be taken into account in order to obtain harmonious development of urban eco-industrial system. We simulated and evaluated a redesigned eco-industrial system in Changchun Economic and Technological Development Zone (CCETDZ) in the present work using system dynamics and grey cluster methods. Four typical development strategies were simulated during 2005-2020 via standard system dynamic models.