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831.
Arthur P.J. Mol 《Global Environmental Change》2011,21(3):785-794
China's unprecedented economic growth path over the last two decades has been paralleled by an exponential growth in the consumption of natural resources and in pollution. Initially, China mainly exploited domestic resources to fuel its rapid industrial development. But over the last decade, increasing shares of China's natural resources consumption and environmental impacts relate to peripheral regions, including sub-Saharan Africa. China's environmental impacts in peripheral regions seem in line with World-Systems Theory predictions for ascending world powers. This paper assesses the extent to which the World-Systems Theory idea of ‘environmentally unequal exchange’ between ascending world powers and peripheral economies reflects current behaviour of Chinese governmental authorities and companies in sub-Saharan Africa. It concludes that the theory only partly does so. Behaviour of Chinese governmental authorities and firms is conditioned and guided by environmental norms, as well. World-Systems Theory has to make conceptual space for such new environmental behaviour of ascending world powers, to understand the contemporary and future world-systems. At the same time, China has a long way to go before becoming the ‘green’ exemplar for the world to follow. 相似文献
832.
The use of Lagrangian trajectories for the identification of the environmentally safe fairways 总被引:1,自引:0,他引:1
We propose and test a method for the optimisation of marine fairways to minimise the risk to high-value areas, based on statistical analysis of Lagrangian trajectories of current-driven pollution transport. The offshore areas are quantified according to the probability of pollution released in these areas to reach vulnerable regions. The method contains an eddy-resolving circulation model, a scheme for tracking of Lagrangian trajectories, a technique for the calculation of quantities characterising the potential of different sea areas to supply adverse impacts, and routines to construct the optimum fairway. The gain is expressed in terms of the probability of pollution transport to the nearshore and the associated time (particle age). The use of the optimum fairway would decrease the probability of coastal pollution by 40% or increase the average time of reaching the pollution to the coast from 5.3 to about 9 days in the Gulf of Finland, the Baltic Sea. 相似文献
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主要介绍了建筑物防雷装置中的接地装置、等电位连接、引下线、避雷网等施工监督应该注意的几个问题. 相似文献
838.
通过对新绛县农村民居状况进行调查,分析了农村民居抗震性能的现状及造成现状的原因,并提出了改进的具体措施及建议。 相似文献
839.
While much work has been done in investigating determinants of oil spillage attributed to vessel accidents, little research has been conducted on the effectiveness of ship hull design in reducing marine pollution. This paper addresses whether the double-hull requirement reduces vessel-accident oil spillage. The volume of oil spillage due to oil-cargo vessel accidents was investigated using tobit regressions and an empirical data set of individual vessel accident pollution incidents investigated by the US Coast Guard from 2001 to 2008. The results indicate that the double hull design on average reduces the size of oil spills by 20% and 62% in tank barge and tanker ship accidents, respectively. 相似文献
840.
通过对我国西北内陆河流域的生态系统、水循环、水资源形成与消耗的特点,生态环境的变化以及水环境保护等问题分析,论述了开展内陆河流域综合治理的必要性和紧迫性。结合近期典型流域治理恢复成效,提出内陆河流域综合整治的第二步生态恢复目标。根据内陆河流域的治理实践,参照干旱区供水集水和保水技术,总结了改善下游绿洲水分生态平衡、控制中上游用水与保护河道水环境,防治河道水质盐化与农田排水再利用等生态恢复与重建的技术。最后,为了实现流域生态环境良性循环和水环境质量整体改善,提出了现阶段要加强水环境监测保护和生态补偿建设的任务。 相似文献