中文摘要：

由经济发展、社会进步及环境友好构建的三维立体图中，三个维度的不同组合方式代表了不同的区域发展模式类型。生态县是中国寻求区域可持续发展的一种新的模式选择，通过三维模型，县域可确定自身所属的发展模式类型，并通过政策调整实现可持续发展目标。在政策实施方面，应将区域经济发展实践、和谐社会构建及环境友好型社会建设有机结合。

英文摘要：

The basic dimensions of regional sustainable development are economic development, social progress and en- vironmental friendship. In the three-dimensional geometric model of “economy-society-nature”, different combinations of three dimensions represent different types of regional development. Ecological county is a new practice to seek a mode of sustainable development in China, with the three-dimensional structure, a county can determine its type of regional development, and achieve the goal of sustainable development thought policy adjustments. Local government should integrate the economic development, the building of harmonious society and environment-friendly society in its policy- making and implementation processes