Cumulative impact assessment in environmental planning: A coastal wetland watershed example

Several theoretical, analytical, and institutional difficulties have impeded the development and application of the assessment of cumulative environmental impacts. Watershed development on coastal wetlands offers an ideal context for evaluating the land disturbance target approach to cumulative impact assessment. A model land use planning system involving a time series approach was developed for Elkhorn Slough in California. The approach included four major components: evaluation of erosion susceptibility, measurement of land disturbance, establishment of a land disturbance target, and a comparison of existing and target land disturbance values. Further research is needed to test the transferability of the approach in a wide range of coastal watersheds and to verify the applicability of the methods to other cumulative impact problems.     

奎屯市区城市废水排污系统网络化的探讨

根据奎屯市区城市废水的排放量大、排污口多、污染物浓度高以及排污下水管道污水处理设施的建成现状等特点，提出了以污水处理厂为治理中心，市区排污管道网络化的改造设想、存在问题及对策。     

从城市规划角度浅议城市道路噪声污染问题解决途径

对兰州市近三年来交通噪声的特征在城市空间结构的背景上,以公众反映为尺度进行了分析评价,研究表明,(1)公众对不同城市空间结构上道路噪声反映均为起伏大、吵闹和一般不可接受;(2)部分区域噪声污染指标超标与早期规划有关;(3)近期道路规划和建设是噪声下降的主要原因;最后指出,基于规划基础上的环境问题规律性的研究和基于环境保护理念下的规划设计模式的研究将是今后环保专业和规划专业人员共同探讨的课题。     

Optimal Timing to Adopt an Environmental Policy in a Strategic Framework

In this paper, the problem of optimal timing, when to adopt an environmental policy in a strategic framework is considered. Using real options theory and some basic tools of game theory, we show that, under certain assumptions, a country behaving strategically should wait longer before adopting such a policy than if it behaves unstrategically or within a larger entity. Such a postponed decision is sub-optimal as regards to the environment protection.     

“入世”对我国环境监测工作的影响及对策初探

加入 WTO后 ,我国环境监测工作将面临重大的挑战和机遇 ,文章初步分析了入世对我国环境监测工作的正负面影响以及现存的若干问题 ,积极探索了环境监测工作的新战略和新思路 ,提出了创建新体制和适应新形势的对策。     

城市高架道路建设对机动车尾气污染的影响分析

通过现场观测和对比，分析了城市一般道路上和城市高架道路下机动车排放污染物浓度差异的原因，分析结果表明，扩散条件对城市机动车尾气污染有着重要影响，例举日本对城市高架道路建设的有关规定，提出应重视城市高架道路建设的环境预评估等。     

土地复垦投资的政策法规建议

土地复垦投资的政策法规是为了克服市场经济本身的缺陷和不足,规范生产建设者（当事者）的行为以及强化其社会意识和责任,确保土地复垦投资机制的形成和运作。本文分析了我国土地复垦投资的相关政策和法规的现状和问题,有针对性地提出了一些政策和法规建议,且对《土地复垦规定》提出了具体的修改建议。     

环境伦理·生态文明·环境政策取向

环境伦理是一个伴随人类文明发展历程的社会主题。由于人类缺乏对生态文明、环境伦理、环境道德的合理吸纳,造成愈演愈烈的生态恶果。人类文明正处于历史转折点,必须对传统人类文明加以辩证之否定,融物质文明、精神文明、生态文明于一体,通过提供理性制度安排、调整利益分配格局来规范人类的道德伦理观念。     

内蒙古发展循环经济的方向与政策初探

本文从内蒙古资源、经济与环境问题现状出发，分析了发展循环经济的必要性、紧迫性和可行性，提出了我区建立循环经济的发展战略应考虑的基本原则，发展方向和法律、政策方面的建议。     

Climate Change Policy in European Countries and its effects on industry

In this paper we discuss the effects ofdifferent climate change policies onindustrial activity and on welfare. Wecompare the effects of carbon taxes andgrandfathered permits and the effects ofexemptions for energy-intensive industries.We survey first the insights from economictheory and from model experiments for theUS. Next we use a general equilibrium modelto assess the effect of different climatechange policies on industrial activity persector and per member country in the EU. Wepay particular attention to the effects ofpolicies where one EU member state exemptsits energy-intensive sectors from abatementefforts. The main findings are that, in theEU, the effects on industrial activity andthe welfare costs of tradable permits orcarbon taxes are small when no industrialsectors are exempted. When one membercountry exempts its energy intensivesector, this will reduce somewhat theimpact on its activity level but willgenerate an extra welfare cost for theEU.