【摘要】 1996—2005年,通州市工业化得到了快速的发展,与此同时,资源环境压力也越来越大。本文采用区域系统物质代谢的方法,分析了通州市自然环境负荷的演变。结果表明:固体废弃物输出的增长率高于固体物质输入增长率;废气排放的增长率高于化石燃料输入的增长率;废水输出的增长率高于淡水输入的增长率;固定物质快速积累;通州市物质代谢效率不断提高;物质代谢的速率持续上升,环境冲击越来越大;在物质不断减少、环境得不到有效改善的情况下,提高物质代谢效率对于可持续发展具有更为重要的意义;在快速工业化条件下,为提高县域系统物质代谢效率,降低物质代谢脆弱性,需要建立合理的产业结构体系、提高物质循环利用水平以及建立物系管理体系等一系列措施。更多还原

【Abstract】 Tongzhou City experienced a process of rapid industrialization from 1996 to 2005,and the pressure on its resources and environment was getting higher.By using the method of material metabolism analysis within a system at regional scale,the evolution of natural environment load in Tongzhou City was analyzed.The results showed that in the city,the growth rates of the outputs of solid wastes,waste water,and exhausts emission were higher than those of the inputs of solid materials,fresh water,and fossil fuels,and the fixed substances accumulated quickly.The efficiency of material metabolism in Tongzhou City improved constantly,and the material metabolism rate and environmental press kept increasing.With the decreasing material and worsening environment,it was quite important to improve the efficiency of material metabolism for sustainable development sake.Under the background of rapid industrialization,we should build a reasonable industrial structure system,enhance the level of circular use of materials,set up management system of material flow,and take some other measures to increase the efficiency of material metabolism and reduce its frangibility at county scale.更多还原