If cities are at the center of the storm of ecological destruction, they must be central to its solution. An ecological city is as much about balance within human society as it is about balance between humans and nature. Ecocity, a package of concepts, ethics and programs for making cities that are places of ecological restoration. It goes beyond "sustainability". But ecocity is an, as yet unrealized, visionary reponses of some planners and scholars to the environment and social problems facing the world and the city`s role in it to date. Also, there are many theoretical problems to be tackled. First of all, there is the matter of identifying relevant indicators of `ecosystem health` while it does exists in a direct and thoroughly sustained interaction between the economy of urban scale and out-of-town sprawl with the urban environmental degradation. There have been many suggestions, ideas, and movements to sustain city within ecosystem and natural cycles, such as local agenda 21 establishing, ecosystem restoration projects, ecopolis movements, and even the city planning process with environmental assessment. But there are no grandiose schemes efficient to be expectable in these endeavors. Only the ecologically sustainable and co-existing cities with nature wille be brought about by a myriad of open and gradual improvements, each of which may appear to have limited effect, but when the sum total of all the other ideas, represents a comprehensive improvements to the overall quality of city environment. They are the 4 step process of city planning to be able to evolve with the relevant systems. It consists of as follows: First, land use plan, specified the level of ecosystem conservation by land sutability analysis; Second, dynamic balancing system for urban frame; Third, pre-design regulation for urban fabric through environmental assessment; and lastly, Feed-back adjusting by the urban sustainability reporting.
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