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大城市边缘区中小城市的发展具有其特殊性,特殊的区位和特殊的功能定位决定它必须与大城市协调发展。当前"撤县设区"、"撤市设区"发展大城市,加快城市化进程成为我国当今城市发展的一个主导趋势。行政区划调整使城市总体发展战略发生调整,其边缘区的发展条件、发展背景发生了变化,其发展战略也相应要调整。本文通过揭示新的背景下广州市边缘区增城市的城市产业发展、空间发展、生态保护、基础设施布局等方面的战略取向,探讨了大城市边缘区可持续发展的道路。  相似文献   

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This essay questions the effectiveness of nuclear winter modeling as a means of impacting nuclear policy and changing public attitudes about nuclear issues. In nuclear winter modeling, humanistic concern over the possibility of global environmental destruction is cloaked in the ostensibly neutral language of science. Nuclear winter modeling attempts to apply rational argument to an issue that is rooted instead in human affect and morality. The implications of this misappropriation are discussed in terms of the dehumanizing nature of the images conjured up by nuclear winter, its attention to the effects of nuclear weapons rather than deeper structural problems, and its political ambiguity as a function of unresolvable uncertainty in model results.  相似文献   

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