From organic decentralization to eco-city planning;

In eco-city planning, population prediction plays a significant role in economy prediction, special eco-planning and decision making.

But there is still lack of uniform and standard method of eco-city planning.

Review and prospect of urban ecological planning;

Uncertainties in urban ecological planning mainly result from the following aspects: uncertainty in the planning process and uncertainty in decisionmaking and analysis.

By reviewing the theoretical foundation of the separation between urban planning and urban ecological planning in China,the paper discusses,from a prospect of the construction of urban planning theory,the possibility and necessity of integrating ecological planning into urban planning.

It analyzes present problems on urban development, combined with planning of urban ecology in Datong and experience of building ecological city, important purpose is introduced on planning and construction of urban ecology to improve dwelling environment and build concordant society.

This article takes the City of PuTian as An Instance and uses the theory of landscape and ecology to analyze how to ensure the dimension of landscape in the planning of urban ecology.

Some methods for the population forecast in the ecological urban planning in county towns;

With the analysis of the evolutionary trend ofthe ecological city planning, the impacts of the ecologicalcity planning on the traditional environmental art designare dealt with and the new development direction of theenvironmental art design is presented in the paper.