The City Ecological Planning Based On The Nature-economy-society Complex System

Currently, the ecological movement for the goal of harmony between the human being & nature is launched vigorously and permeated in many ways throughout the world. Constantly enhancing the level of ecologicalization and constructing an eco-city, which is fit to dwell for human being, have become the main trend of city's1 development. It is not only the results that all the nations in world change the traditional economical developing model and strive for all world and all mankind's sustainable development, but also that mankind seeks the man & nature's symbiotic and coordination and a more ideal man's residential environment.Changsha is the provincial capital of Hunan Province. How to construct eco-city so that it can comply with the essential aspect of city has become an interesting work, which is badly needed resolving. Because of above reasons, the related problems on eco-city's construction in Changsha have been studied preliminarily in this paper. Firstly, the author focused on the theory research on eco-city and city ecological planning. And then the systemic planning of Changsha was conducted based on the complex ecosystem of Nature-Economy-Society. The purpose of this work was for the construction of eco-city of Changsha, and also provided the references help for the other cities which were making efforts to construct their cities as the eco-cities.