试论美国UGB与中国城市开发边界的异同及其启示

Discussion of Differences and Revelations between UGB in China and U. S.

介绍了美国俄勒冈州波特兰市划定UGB的背景、概要以及40多年来的调整变化与实施管理情况,对照国内正在推行的划定城市开发边界试点的探索和实践,对美中两国试图以划定开发边界来控制城市规模扩张的情况加以辨析,指出国内在城市开发边界划定后的实施管理中可能遇到的问题与难点,建议应加快推进城市边界划定的法制建设,增强规划决策的透明度,提升公众参与度,以维护开发边界划定的权威性与稳定性。

This article is an overview of UGB （Urban Growth Boundary ）policy in the United States, particularly Portland in Oregon state. It summarizes its origin and evolution in more than 40 years. At the same time, comparing to current trend of implementing urban growth boundary in ma- jor Chinese metropolis areas, the paper discusses commonalities and differences between the two countries and points out challenges of implementing such policy in China through time. This article calls for legislative efforts regarding to facilitate the implementation of UGB in Chinese cities, to increase transparency in planning stage, to promote public participation throughout the process and to ensure the authority and stability of UGB.