The power of human activities in resource鄄based cities overload its ecological carrying capacity, such as mining, land occupying, and ore smelting supported by resources and environment. The relative research on the development of the cities is a hot topic over the world, the sustainable development of resource鄄based cities has become one of most prominent issues in China. The ecological carrying capacity reflects the harmony of human and ecosystem, including their interactive and symbiotic relationship, which should be used as an important criterion of region sustainable development. In past, the studies on ecological carrying capacity were largely confined to basin and region scales until the urban complex ecosystem theory was put forward. Thereby it is very inevitable to study the urban ecological carrying capacity and eco鄄regulation for its sustainable development. Tangshan, nearly hundred years of mining history, may be one of the fastest developing resource鄄 based cities in China, as well as one of most prominent representative of the cities which has poignant contradiction of the location: population boom, resources depression and environment deterioration. Based on the regional unique characteristics
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